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  1. After much trial and error, I've finally managed to make my second ever functional SSTO, and the first SSTO I've ever created with a useful payload other then it's pilot! It's built to enter orbit, land on Minmus, spend about 2 and half months processing ore, then lift off to interplanetary space with 6,000 delta V to spare! Kerbal X Download Page Notes/Trivia: The crafts' front-most two fuel tanks are intentionally under-fueled! This was done to help achieve liftoff on the run way; when full, the craft was too unstable for me to fly properly X3 You might want to take this into account if you decide to refuel and take off on Kerbin. Alternatively, you can try to fly it fully fueled if you think your up to the task; I doubt I'm the best at flying :Y There's only one pilot seat and no probe control (making flying with an engineer not very ideal), and the ISRU module and drills are the smaller variants. Refueling takes awhile, even with stock speed up set to max! It does hit 4,000 delta V around halfway through refueling, so you can lift off partially empty if you know where you want to go, or need more TWR. Lift off from Minmus can be kind of tricky, as the craft doesn't have the reaction wheel strength to pitch up at full fuel, and the craft likes to curve after a while and slam one of it's wings into the ice! Simply retracting and rextending the landing gear quickly can help you ascend if you don't have a convenient ramp to use. Feel free to add your thoughts and/or suggest improvements, this is my first serious SSTO, and I'd love to keep building upon what I've learned while constructing it!
  2. This is my first craft thread, so advice would be welcome if I am in conflict with any conventions. Big Plane to Anywhere (figuratively) (Nice try, Bill, but I don't think this is what they meant by "long range ISRU craft"...) Well, it's been a long time coming. I'm mainly a rocket guy, but when I do find myself in the Spaceplane Hangar I very easily get obsessed with fiddling with my designs, more so than with the rockets. Anyway, I think I've finally gotten this to the point where I no longer have to be ashamed to put it in view of the public. Let me know if I'm wrong! (Note: above picture shows RAPIERs instead of NERVs on side of craft and four shock cones. This is outdated.) If I'm being honest, the series of planes that this is a culmination of probably began life as the concept, "like my first spaceplane, only bigger". But eventually an actual mission materialized: to carry a scientific exploration team to Laythe and (almost) anywhere else with a complete science package and ISRU that wouldn't take months to refuel with. One recent development, which I'm a bit proud of, was the realization that I could attach radiator panels to the large battery that was adjacent to both of the drills and the refiner, elegantly taking care of all my core heat xfer needs. This development allowed me to finally have a truly streamlined airplane, since I had formerly had medium TCSes attached to the exterior. Two panels and two small TCSes have less than the mass of one of the two medium TCSes, let alone the aerodynamic improvement! The small TCSes (middle of picture) are for actual part cooling, and aren't necessary, but having at least a little active cooling capability is nice (the panels are terrible at non-ISRU cooling). The construction of this spaceplane does not use offsets at all. I also minimized part clipping. Statistics: Parts: 100 Mass: 110.675 tons Cost: 405.49 kilocredits Vacuum Delta-V: 4.5k to 4.6k depending on if you have oxidizer or nothing but liquid fuel. (counting ore tank, since you can refine it into fuel) Engines: 4xRAPIER, 4xNERV (0.25 TWR on NERVs if the LF/Ox tanks are empty) Landing gear: 2xLY-60 in rear; LY-60 and LY-35 in front. (35 for better taxiing and runway takeoff; 60 for rougher terrain and lower takeoff speed) Mining: 2x large drills, large converter, smallest ore tank, M4435 Narrow Band scanner, Surface scanner (Surface scanner can refine M4435's results) Science: all experiments; 4 places to put science in addition to the lab (Cockpit, probe core, 2x storage unit) Communications: Communotron 88-88 (normal direct antenna); RA-2 + RC-001S (with one pilot, can control a probe that lacks direct CommNet connection) Airbrakes?: Yes, 4. Retract before landing. Parachutes?: Yes, 6 plus 2 drogues; positioned to be moderately rear-heavy, but this is adjustable via fuel movement. Can safely land on land or in water. Can safely lift off from water. (See Miscellaneous) RTGs?: Yes, 8; can permanently run lab and SAS at full strength Fuel cells?: Yes, 3; can permanently run drills and refiner at full capacity RCS?: Sort of; 6x Vernors under the nose to assist takeoff/landing in airless environments Does it get to Mun/Minmus unassisted?: Yes; even a mediocre pilot can reliably get to LKO with over 2000m/s remaining. Test flight landed on Minmus with 740-765 dV remaining, depending on landing technique. Also goes direct to Mun. Flight characteristics: Balance: The center of mass is almost exactly on top of the center of lift both full and empty, in the back half of the rear cargo bay. (About 16.3m from the front of the 26.8m craft, or about 61% of the way to the back.) If you want the CoM to move forward after takeoff, you can lock the tank behind the cockpit (this LF should not be needed to make orbit). This also can help counteract the already mild tendency to nose up at high speed (see below). Lift: Tendency to nose up or down while SAS is off is not violent at any speed; very slight down at low speed (<200), a bit up at high speed (300-1000), and very slight up up during final speedrun. Takeoff in atmosphere: Fully loaded, it can be lifted off the runway at 83m/s (lower on rough terrain due to upslopes) on main wheel (100 for smaller wheel). Consider using the small wheel on runways or flats to gain more speed before liftoff (due to lower angle of attack while on the ground). Left to its own devices it lifts off at the end of the runway at about 99m/s (112 for smaller wheel). Ascent: It has to be nursed up to 300m/s. My flight plan after reaching the RAPIER's speed hump, which may or may not be optimal, is: adjust to 5° below horizon until over 400m/s; then slowly adjust up to 5° above horizon until about 15km altitude. Slowly drop near to the horizon in order to extend final speed run in the 18-22km altitude range. Activate NERVs when RAPIER thrust falls below 200kN. By the time thrust falls below 60kN you should be near 1450-1550m/s; switch to rocket mode when jet+NERV acceleration is unacceptably low and aim for the top of the prograde circle (or a little higher or lower, to taste). After oxidizer runs out the NERVs should be able to maintain or increase your time to apoapsis; drop to prograde lock when ready (this can happen in rocket mode). Takeoff in vacuum: Fully loaded and on a flat surface, the Vernors are not quite strong enough to lift the nose for vertical takeoff in Munlike gravity. Instead, get forward motion and it should be able to lift off shortly with the help of the thrust attitude, especially if the vehicle runs off the top of a hill. Landing characteristics: Approach: The airbrakes should be retracted before landing as the bottom ones may be destroyed otherwise. Landing in atmosphere: Should stall at under 60m/s assuming low fuel (takes off near empty at 53). Perfect balance and generous control surfaces make it relatively maneuverable for a Mk3 spaceplane. Fairly wide rear footprint means it should be pretty stable and modest testing has borne this out. Try not to touch down at more than 5m/s vertical speed. Landing in vacuum: dV can best be conserved by a "reverse takeoff" posture, where final approach retains some horizontal motion while vertical motion is very low, but this is not easy. It is probably more practical to descend on the engines rocket-style, and then transition to horizontal when near/on the ground (fall on the wheels). This has been tested on the Mun. Be careful to keep the plane level (don't let it rotate to its side our you may lose a wing). The Vernors can slow the fall of the front end, but this should not be necessary in Munlike gravity. Miscellaneous: —Recommended docking procedure with this vessel is as follows: 1. Rendezvous; 2. Make a close approach (30 meters or less), then cancel relative motion; 3. Align to the desired docking port, and accelerate a little for final approach. This technique has been highly successful on larger versions of this vessel docking with still larger vessels. —Water landing was tested on Kerbin at 75% fuel. If your splashdown attitude is close to vertical, your docking port may be at risk of destruction as you rotate down, but this can be prevented by using the Vernors to slow your fall. —The top speed in water is 38.7 m/s when full. The top speed on low fuel is uncertain because during testing the plane unintentionally took off. In subsequent testing, the vessel was able to intentionally lift off when top speed in water was about 70 m/s, when fuel fell to between 20 and 25%. (Highest speeds were obtained when fuel was moved forward and SAS set to prograde.) —Why the precoolers? Although the shock cones more than meet the needs of normal flight, I like the idea of having strong static airflow for those, ahem, "off prograde" situations. —Why the everything? This design was not arrived at minimalistically; I'm sure there is a lot you could cut, starting with the rear parachutes and airbrakes. But I wanted a feature-rich craft, and those are features, and it is Minmus capable, so there. Having said that, I do still welcome criticism if you think anything is too blatantly unnecessary. —Why no offset? I just didn't want to use offset; a little bit to neaten up the often messy intersections of aerodynamic parts is okay but I often see it used in a way I think of as exploitative. So in a way the only minimalistic thing about this design is the offset and part clipping, which was a design choice. So, how do you like the plane? How do you like the post? Comments and questions welcome. Edit history: 9/28/19: Added vacuum landing notes. Added "Miscellaneous" section. Made major changes to vehicle (took off two Mk3 side pods, added four Mk1 side pods—reduced RAPIERs from 6 to 4). Edited text accordingly. 9/29/19: Added Minmus picture. Edits to vacuum landing notes and other things. 9/30/19: Swapped location of RAPIERs and NERVs (reducing tailstrike risk); minor text edits. 10/4/19: Minor adjustment to front wing AOI and location; small but critical adjustment to rear wheels to eliminate drift on takeoff. Added location of CoM to "Balance". Added "Takeoff"; edits to "Ascent" and "Landing Characteristics".) Finally changed top picture to reflect new version of craft. 10/5/19: Added "Communications"; added more detail to CoM location, "Lift", and "Takeoff"; added RA-2 to vehicle and replaced bottom pair of shock cones with NCS tanks. (Reduced cost by 3300, increased wet mass by 0.91, dry mass by 0.11, part count by 3) 10/10/19: Updated "Landing in vacuum" to reflect finally testing Mun capability; added "Takeoff in vacuum". Removed 1 fuel cell (3 remain) after determining that there is no realistic use case; even with unlimited ore the O quickly fills up and the rest is just LF (-1 part, -0.24t, -4.5k). 10/11/19: Added water landing/movement/takeoff details. 10/13/19: Added postscript. Postscript: the action groups: 1: RAPIER toggle (on/off) 2: NERV toggle (on/off) 3: RAPIER mode swap & air intake toggle (open/shut) 4: All cargo bay doors toggle (open/shut) & small thermal control system* toggle (deploy/retract) 5: --- (nothing) 6: Drill toggle (deploy/retract) 7: Surface harvester toggle (on/off) 8: Fuel cell toggle (on/off) 9: Obtain all possible science, including crew report 0: AIRBRAKES toggle (deploy/retract) Lights: default (all lights turn on or off) Landing gear: default (all landing gear extends or retracts—note that this is NOT a toggle) Brakes: default Abort: The top cargo doors open and all parachutes deploy. It's possible that some parachutes won't deploy if the doors aren't already open; just press the button again. *(Note: the interior thermal panels are always on by default)
  3. Baha EPL Redrilled BahamutoD's Drills & Parts for Extraplanetary Launchpads. The is an updated version of @BahamutoD 's original Baha EPL mod. The drills are compatible with stock and now animate and behave like stock drills. I'll be maintaining from now on, or until BahamutoD returns. You can Download it from SpaceDock Here! Albums: Change Log: Version 1.3.02 [KSP v1.5.1] - Fixed attach node direction for 3D Printer and Compact launchpad. - Removed crew compartment in launch pad and added probe core. - Cleanup of launch pad config. Version 1.3.01 [KSP v1.5.1] -Updated dependencies -Included Module Manager Version 1.3 [KSP v1.3.1] -Full update to KSP v.1.3.1 Version 1.2 [KSP v0.23] -Added expandable containers -Added Launchpad -Added 3D rocket parts printer BahamutoD's original thread as of (3/2/14), also posted below: These are a pair of animated augers (one large, one small) for the Extraplanetary Launchpads mod by skykooler and taniwha. They do not overwrite any parts from the mod and aren't officially part of the mod, just my own addon for them. -Known 0.23.5 bugs: -Launchpad dances while being deployed -3D printer falls through things/things fall through it Version 1.2 -Added expandable containers -Added Launchpad -Added 3D rocket parts printer Notes: Includes an early version of my Animation Modules plugin that allows the container and 3d printer animations. I'm not entirely satisfied with the 3D printer yet but I thought I'd let people play with it for now. Source for the plugin: Download: EL Drills and Parts v1.2 Download =========================== [Legacy Imgur Album Code Omitted] ============================== Surface Sample Drill Also, a science drill was requested. I wanted to make a separate part for that eventually but for now, a rescale and retexture: ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  4. UPR is a "mod". Really it's a bunch of config files and module manager patches but it's goal is to make a complete integrated mod experience for ksp. This means it integrates some selected mods together to create a system which is universal (i.e same UI, Resources and converters for all systems) The design concept is for it to be a Semi-realistic easyish stock looking and balanced game Source Code: Current dependencies: WildBlue Industry's Tools Snacks CryoTanks Community Resource Pack Community Tech Tree DynamicBatteryStorage Rational Resources recommend/Integrated Mods Making History DLC Breaking Ground DLC WBI Pathfinder WBI DSEV NF Electrical NF Propulsion KIS KAS Features: Semi-realistic planetary resources i.e your not going to find every resource on every planet like what CRP is currently Semi-realistic life support (Food, Oxygen, Water) Planetary Base building/ Colonization Semi-realistic ISRU Metholox and Hydrolox fuel chains and engines part and equipment production chains integrated tech tree Other Stuff help and suggestions are appreciated and so feel free to do so Developmental notes This seems like a lot and it is. But this started as trying to get some of my favorite ksp mods to fit seamlessly together and separately trying to make them a little bit more realistic. Then it got all lump together into what currently is UPR. Thus it really should have another name but it was separate "mods" so i just kept one name that had a short acronym: UPR
  5. Some remarks: I always wanted to to a Eve and return. So I grabbed some contracts (put stations in Eve and gilly orbit, plant a flag on Eve etc) to help in funding. I also used HyperEdit and the help of this community to design a working EveAscentVehicle for three Kerbals: I also used HyperEdit and the help of this community to design a working EveAscentVehicle for three Kerbals: I have a heavily modded install, most important for gameplay is propably the usage of USI-Lifesupport: [x] Science! Continued (xScienceContinued 5.22) Action Group Manager Renewed (ActionGroupManager 2.2.4) ALCOR (ALCOR 0.9.7) ALCOR Advanced IVA (ALCORIVAPatch 0.9.7) Antenna Helper (AntennaHelper 1:v1.0.6) ASET Agency (ASETAgency 1.0) ASET Props (ASETProps 1.5) B9 Part Switch (B9PartSwitch v2.7.1) ClickThrough Blocker (ClickThroughBlocker Community Category Kit (CommunityCategoryKit Community Resource Pack (CommunityResourcePack Community Tech Tree (CommunityTechTree 1:3.3.7) Community Terrain Texture Pack (CommunityTerrainTexturePack 1:1.0.4) Contract Configurator (ContractConfigurator 1.27.1) Contract Pack: Bases and Stations Reborn (ContractConfigurator-KerbinSpaceStation 2: Contract Pack: Clever Sats (ContractConfigurator-CleverSats 1.4) Contract Pack: Tourism Plus (ContractConfigurator-Tourism 1.5.2) Contract Parser (ContractParser 8.0) Custom Asteroids (CustomAsteroids v1.7.0) Custom Asteroids (inner stock system data) (CustomAsteroids-Pops-Stock-Inner v1.7.0) Custom Asteroids (outer stock system data) (CustomAsteroids-Pops-Stock-Outer v1.7.0) Custom Asteroids (stockalike config) (CustomAsteroids-Pops-Stock-Stockalike v1.7.0) Custom Barn Kit (CustomBarnKit DMagic Orbital Science (DMagicOrbitalScience 1.4.2) Dynamic Battery Storage (DynamicBatteryStorage 2: Firespitter Core (FirespitterCore v7.12.0) Firespitter Resources config (FirespitterResourcesConfig v7.12.0) Hide Empty Tech Tree Nodes (HideEmptyTechNodes 1.1.1) HullcamVDS Continued (HullcamVDSContinued 0.1.12) HyperEdit (HyperEdit JX2Antenna (JX2Antenna 2.0.5) Kerbal Alarm Clock (KerbalAlarmClock v3.10.0.0) Kerbal Attachment System (KAS 1.3) Kerbal Engineer Redux (KerbalEngineerRedux Kerbal Inventory System (KIS 1.21) Konstruction (Konstruction Kopernicus Planetary System Modifier (Kopernicus 2:release-1.7.0-1) KSP AVC (KSP-AVC MechJeb 2 (MechJeb2 MechJeb and Engineer for all! (MechJebForAll Mk1 Lander Can' IVA Replacement by ASET (Mk1LanderCanIVAReplbyASET 1.1) 'MK1-2' IVA Replacement by ASET (MK12PodIVAReplacementbyASET 1:0.3) Mk1-Cabin-Hatch (Mk1CabinHatch 0.2.0) ModularFlightIntegrator (ModularFlightIntegrator Near Future Electrical Core (NearFutureElectrical-Core 1.0.1) PlanetShine (PlanetShine PlanetShine - Default configuration (PlanetShine-Config-Default Precise Node (PreciseNode Progress Parser (ProgressParser 10.0) RasterPropMonitor Core (RasterPropMonitor-Core 1:v0.30.6) RCS Build Aid Continued (RCSBuildAidCont 1: SCANsat (SCANsat v18.10) Science Revisited Revisited (ScienceRevisitedRevisited 1.7.1) Sigma Binary (SigmaBinary-core 1:v1.7.0) Sigma Binary - Duna + Ike Binary (SigmaBinary-DunaIke 1:v1.6.11) Surface Experiment Pack (SurfaceExperimentPack v2.7.1) TAC Fuel Balancer (TacFuelBalancer v2.20) Toolbar Controller (ToolbarController 1: Trajectories (Trajectories vKSP1.4.2-v2.2.0) Transfer Window Planner (TransferWindowPlanner v1.6.3.0) TriggerAu Flags (TriggerAu-Flags v2.9.3.0) UbioZur Welding Ltd. Continued (UbioWeldContinued 2.5.3) Unmanned before Manned (SETI-UbM) (UnmannedBeforeManned USI Core (USI-Core USI Life Support (USI-LS USI Tools (USITools ) Now the actual report: Since my kerbals did already an expedition to EVE (only orbit and Gilly landing and return) the newest goal is to go to Eve, land and return. Since this is a highly risky mission engineers and scientists debated how to get maximum science in one mission (there are rumours, that funding will be cut and then only a Jool5 will safe the program). Since nobody wants cut funds because of dying kerbals ( there are so many outer planets to explore, plus Moho etc), failure is not an option. So following mission architecture is used. There is a first launch window, where the EveAscentVehicle plus two space stations (one for Eve, one for Gilly) are sent to the Eve system: Launch and transfer of EveAscentVehicle and Eve/Gilly stations (imgurl) This was successful, since the Eve station and the lander are now deployed to their place in Eve orbit and on Eve surface. The orbit insertion of the Gilly station used all fuel, so it needs a supply mission to move it‘s orbit. Originally no ISRU was included in the design. Since I got following contract for mining ore on Gilly I decided to send a fuel tanker and a miner to Eve ASAP: Gilly Mining Package (imgurl) With their help the gilly station will be moved to it‘s final Gilly orbit. The next transfer window after sending out the miner/tanker will then be used to transfer the crew transfer vehicle (I will refill and reuse the mothership of a Duna expedition still in Kerbin orbit) and the EveExpeditionRover to Eve. The idea is to land near explodium seas, deploy science packages and drive to the lander. Then transfer to Eve station. After the habitation time is out on the station, the crew will transfer to Gilly station for further exploration of Gilly and science mining. In this way it should be possible to get science for 2-3 biomes, depending on the route of the rover and the available snacks and habitation time. Finally the Duna Mothership will be used to return to Kerbin. Originally I planed to use SurfaceExperimentPack for the deployed science packages. But since this mod is deprecated the parts of the BreakingGround DLC will be used. Until the DLC is released and I purchased it my program is paused (aka I'll start a Kerpollo Challenge run in a new science safe with less mods)
  6. I am not happy with the way that radiators work or rather not happy with the way radiators 'seem' to not be working properly. Example. If I have an ISRU and or some drills and some radiators. The equipment overheats before the radiators have reached anywhere near their potential cooling ability. So you are watching the radiators slowly creep past 16% cooling and the ISRU or drill is over max. While as a veteran player I am aware that a certain amount of radiators are required to cool certain equipment however it still feels wrong that the equipment is overheating and the radiators are not even at a fifth of their cooling efficiency. It would 'feel' more accurate if the radiators ran up to 100% and were glowing brightly before the equipment started overheating. It would at least 'seem' more obvious that more radiators were required if they were maxed out and the equipment was still overheating. The radiators are not keeping pace with the given equipment and it just feels wrong. D.
  7. S A F I R E - Stockalike Adjustments to Fuels, ISRU, Ratios and Engines Main ideas: 1 stock resource unit = 1 kg -> check propellant mass just looking at the units Oxidizer : Fuel ratio = 3:1 for all LFO rocket engines -> more realistic and great for semi-direct ISRU, where you can produce locally only part of propellant Rocket engines generally cost 60% more, tanks cost ~60% less and rocket fuels cost much less -> more or less same rocket costs but with much more realistic distribution - better for reusability, TSTO, SSTO and drop tanks designs ISRU produces only Oxidizer from ORE; no heat, needs high energy input and is slow -> no more unlimited fuel production, realistic ISRU operation, semi-direct missions (produce 75% of your propellant, bring the rest with you) This is a continuation of an idea from couple of years ago, you can read more about it here How does it look in-game: Requirements: Module Manager by Sarbian. Warning: Save-game breaking and not compatible with old and stock vessels because it doesn't update values in old saved craft parts. New vessels should work fine. DOWNLOAD 0.2.0 GITHUB CONFIRMED COMPATIBILITY: - SMURFF - Making History Expansion - Rescale mods such as Sigma Dimensions CURRENTLY NOT COMPATIBLE WITH: - mods using Community Resource Pack, procedural and fuel switch modules Changelog:
  8. Hi @SQUAD, Could you please allow for the ModuleResourceHarvester and ModuleResourceConverter to be enabled or disabled to allow the the part upgradesign to be more useful to modders. At the moment moduleIsEnabled only works on a small number of modules and some work arounds have been developed for the science, but not for ISRU. Perhaps if this can't be achieved for 'reasons' then a work around would be to add a harvestertype = say -1 or 4 which would equate to being not available. A part upgrade could then switch them to on by changing the harvestortype to 0 or 1 or 2 or 3. Thanks! Peace.
  9. Fuel and ISRU rebalance mod [FIR] Source: MIT AeroAstro presentation "Utilizing Molten Regolith Electrolysis Reactors to Produce Oxygen on the Moon", 2015. The Installation shown above is designed to make 10t of oxidizer per year. What is this mod about? Brief summary: FIR is a mod that rebalances prices of stock fuel (cheaper) and mixture mix used by stock engines/fuel cells (3:1 instead of 1.1:0.9). Additionally it makes behaviour of stock ISRUs a bit more realistic (can only produce oxidizer from ore + work much slower + other tweaks). The mod aims to approximate KSP stock behaviour to reality and thus be a middle ground between the stock game and mods like RO/RealFuels. Detailed description: This is a mod that rebalances couple of things that limited my gameplay and at the same time the learning value of KSP. 1) stock ISRU can only produce oxidizer now. And it is a very slow process (however faster than in reality). ISRUs, scanners and ore tanks are moved earlier in the tech tree. Rationale: Oxidizer only - Making oxidizer of any kind from ore (regolith) is broadly researched in many working papers concerning both Mars and Moon. It's decisively simpler than making all parts of propellant and can be done virtually anywhere by 'just' heating feedstock to a high temperature (in a process called Molten Regotlih Electrolysis). It also doesn't require any inputs except energy. Conversely making both oxidizer and fuel out of ore or even water is quite complicated (taking into account all requirements that accompany off-world manufacturing) and energy intensive process - to such an extent that even known papers about it seems to not get past theoretical stage (G. Landis and others). For now the most advanced in testing, simplest and reliable technology assumes making only oxidizer part of fuel. Lower processing speed - the most advanced MRE ISRU designs currently tested (on the picture above) are able to make about 10t of oxidizer a year assuming continuous operation (on the picture above).In comparison a small stock ISRU is able to churn out the same amount of oxidizer in an hour (0.55 unit/s * 5 kg per unit * 60 * 60 = 9.9t). Therefore my mod is going to rebalance small and normal ISRU's LOX production to about 28t and 160t per Kerbin year (1.2 and 6.6 jumbo tanks accordingly). Increased weight - in reality MRE regolith>oxidizer making system (so ISRU+tanks+power source) has a weight efficiency of about 5-7 (measured as a weight of oxidizer production per year divided by ISRU system weight). Therefore meeting production quota above (28/160t) would require much heavier ISRU units. Again I'm happy with approximation to reality so the mod make small ISRU weigh 2t and large 8t. Moreover large ISRU is much more efficient so there is a reward for bringing larger ISRU to the planet's surface. Lower technology requirements - by moving tech requirements earlier the main difficulty is moved from researching the technology to actually making it work. So the player would need to send and ISRU system in advance to produce fuel (so similar to assumptions of some current MARS/Moon missions). It should create interesting situations when player can utilize ISRU before upgrading science compound in a career game. Therefore with careful planning he can extend the range of lower tech rockets and reach further planets so the gameplay could be more interesting in early career compared to late game. Energy demands for small isru remain unchanged at the moment. Standard ISRU however has 4x higher EC demand (4x bigger size and 50% better efficiency = heating more regolith to a higher temperature). 2) Changed fuel mixture ratio for stock tanks, engines and fuel cells to 3:1 (from 1.1:0.9). This is a compromise as to what stock LiquidFuel might be since sometimes it acts as RP-1/Kerosene (jets, big engines) and sometimes as liquid hydrogen (LV-N). Rationale: 3:1 ratio seems to be a good compromise and generalized mixture ratio that encompasses different fuel types: Typical oxidizer to RP-1 mixture ratio = 2.56:1 (RD-180 2.72:1) Typical oxidizer to methane mix ratio = 3.2:1 Typical oxidizer to liq hydrogen mix ratio = 5:1 *(from 4:1 to 8:1) So we can see that no matter what popular fuel mix we take they always use more mass of oxidizer than fuel. This means that player can refuel now a significant portion of a fuel (75% of mass) in the form of oxidizer. Also 3:1 ratio means that it's easier to make quick calculations by seeing whether you have more than 3x times more oxidizer than liquid fuel. 3) Liquid fuel, oxidizer, monopropellant and solid fuel are much cheaper now. So player using SSTO or recovering stages gets much higher cash bonus than before. Rationale: I didn't like how my big SSTOs or rockets still used quite a lot of fuel even though they were recoverable. In stock KSP - depending on your design - fuel costs can comprise even 10-20%+ of a spacecraft or almost 40% of a stock tank. In reality fuel costs are about 0.4% in case of a space shuttle so very little compared to space vehicle costs. Since the parts' total cost remains the same, the parts' dry cost is relatively higher while fuel price is So now player that invests a lot more time to build recoverable parts or/and fly SSTOs is rewarded with higher percentage of recovered funds. 4) - for people using Atomic Age mod by porkjet - I've changed fuel mix and isp value for LANTERN engine in Atomic Age Nuclear Propulsion mod by porkjet: Using stats from this page: and reducing isp to stock values, I've increased slightly isp in LOX augmented mode to 500isp instead of 455. In reality isp for 3:1 fuel mix is expected to be in range of 631-647s. Isp for LF mode only remained unchanged (720s). LOX augmented mode uses now 3:1 fuel mix. Therefore LANTERN engine has now the highest isp (500) from all engines that can be refuelled with an oxidizer (since LV-N can't be refuelled with new ISRU mechanics). Aside from more challenging and (imho) interesting gameplay this rebalance increases educational value for KSP; a player: - can see that oxidizer is making a bulk of the rocket fuel (similar to real world) - observes that ISRU can extend range of the rocket by making only oxidizer however implementation of it requires planning ahead (similar to real life). Also it's rather not viable as a part of a spaceship due to system mass (heavier) and rate it produces oxidizer. The main purpose of it is now to sit on a surface of a planet and produce small amounts of oxidizer for the long time. - can note that fuel costs in rockets are very small thus researching and developing reusability is a key point to savings and extending the space program. And the last point - if you still reading -this mod will be a basis for my next mods which involve low-tech/low-isp alternative isru fuels/propulsions that were researched extensively due to the ease of implementation compared to more advanced/complicated and therefore less viable solutions. No download link yet, the project is on the drawing board at the moment. I welcome all suggestions and discussion about the mod and ISRU stuff in general:)
  10. I have a lander on the Mun that's intended to hop around collecting science and refueling itself. It seems to be OK with mining ore and refining it into fuel as long as you focus on it. If you switch to something else, it stops making fuel. When you come back, the drills say the ore rate is n/a. Anyone have any ideas where I could start with looking for the problem? The lander is probably not designed well, but there's nothing that stands out as egregiously wrong. The lander does have decouplers separating the ISRU and drill sections from the main body, in case the kerbals need to get back to Kerbin on their own. The decouplers do not have crossfeed enabled - does that affect ore flow, or just fuel?
  11. Hello everyone! Because I'm new to mod making (this is my first mod), I thought I'd try starting out with a relatively simple mod. I use a lot of mods, a few of which require Community Resource Pack as a dependency. Thus, whenever I scan a body for resources, I end up with a fairly large list of things, from Water to CarbonDioxide. However, I never end up using most of these resources, and as most mods only add converter modules for a few of them, the vast majority end up ignored. Many of these resources could be integrated fairly well with Stock mechanics without necessitating new parts or complex processing chains. Thus, this mod attempts to create uses for several resources added by CRP. This is essentially a collection of patches designed to allow stock parts to harvest and convert the resources added by CRP. It will be fully modular, so you don't end up with redundant converters or harvesters for resources you don't want, and it will only use Stock parts (primarily because I have no idea how to texture or model things, but keep that a secret). The stock drills are used for crustal resources, the atmospheric fluid spectro-variometer is used for atmospheric resources, and I plan on using the radial air intake for oceanic resources. For simplicity, resources such as LiquidFuel and Oxidizer are generalized, and are not intended to be fully accurate. In addition, the conversion factors for most of these patches are undoubtedly wrong, partially due to a desire for simplicity and partially because I can't be bothered. If you have a suggestion for a more realistic conversion factor, feel free to tell me! If I ever get into RO, I might consider adding patches for realistic ISRU, but for now I consider this to be a short-ish term project designed to practice my glorious and expansive config-editing skills. This might change depending on community reaction, but don't expect too much for now. In addition to this, I plan on including simplified conversion patches for those who don't want to bother carrying tanks for ~5 separate resources; an early example of this is substituting H2 for Ore (electrolyzed water ice) in the Simple Sabitier conversion. Downloads Installation 1. Download the mod 2. Install CRP and ModuleManager, either from the bundled download or from a separate source 3. Select the modules you wish to install. Do not install both the normal and simplified versions at once, as this may lead to issues Planned Features Green: Implemented Yellow: In progress Red: On hold Conversions -Sabitier | LqdHydrogen + CarbonDioxide = LiquidFuel + Water -Water Electrolysis | Water = LqdHydrogen + Oxidizer -Simple Water Electrolysis | Water = LiquidFuel + Oxidizer -Water Extraction | Hydrates = Water -Simple Water Extraction | Ore = Water -SolidFuel Refining | Alumina = SolidFuel (If I can find a way to allow SolidFuel to be moved) -Various processes involving MetalOre, RocketParts, MaterialKits, etc. Currently on hold due to the fact that mods that use these resources tend to include their own converters Harvesters -CO2 Extraction -Water Mining -Hydrates Mining -Argon Extraction -Xenon Extraction -Oxygen Extraction -Liquid Water Extraction -Oceanic Fuel Extraction (intended for Eve) -Hydrogen Extraction (Depending on availability in stock atmospheres) -Alumina Mining (See SolidFuel Refining) Other -Add part switching to the stock ore tanks to add capacity for every relevant CRP resource -More realistic resource ratios -Using ModuleManager to add these conversions to ISRU parts from other mods -Interplanetary resources, for use with Bussard collectors and such. This would probably require a new part for the collector, so I'm holding off on it for now -RealFuels integration, depending on feedback -Custom atmospheric and oceanic extractors if someone wants to help with that Changelog Licensed as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Feedback and suggestions are appreciated!
  12. So while I wait for Squad to get a handle on the suddenly-fragile/explosive landing gear in 1.4.2, I've put my Career save on hold and I've been experimenting with designs and concepts for a Laythe colony with an associated Ore miner/refinery infrastructure in the Jool system. I've got a Jool window coming up and I want to send a flotilla of missions to establish a permanent presence there. At first glance, Vall looks ideal to support a Laythe base. It's in the same plane as Laythe; it's close in terms of dV, and there's no atmosphere to complicate precision landing or cause ascent drag losses. Howver, it does have relatively high gravity for a planetary moon, and I've found that the gravity losses incurred in both landing and return to orbit are eating up all or nearly all of the Ore I can recover with a reasonably-sized rover. By that I mean, after I've refined all the Ore into LfOx to refuel the lander, I've got nothing left; this is using unscrewed equipment - if I understand correctly, have an Engineer available "on site" so to speak can increase the efficiency. Is that correct? By contrast, a mining lander and refinery operation on/around Pol costs next to nothing in dV to land and return to orbit; the downside is that there's a fairly high dV cost to haul the fuel back to Laythe. Pol's orbit is inclined relative to Laythe's and it's pretty far out from Jool. I'm sure that some folks out there have explored these trades in great depth and can provide some pointers. Thanks.
  13. This is a very simple mod that allows for ISRUs to convert fuel without the need for external fuel tanks. I understand that there are snippets of MM code floating around out there that performs this very task, and I'm sure some of those are much more streamlined than mine, but I am releasing this mod anyway, since there are players out there with little to no experience using Module Manager. Downloading and installing a mod can be trying enough for some users, but it's still easier than writing a patch. What does it do? As stated above, it makes it so that the Resource Converters are able to convert fuel from ore being mined even if there are no ore tanks present on the craft. It does this by adding a very small storage capacity to all parts with a resource converter module using ore as an input. Converters will only be able to store a maximum of one unit of ore, so once you leave the surface you'll no longer be able to keep converting fuel. This is to avoid exploits. Why would I need that? It's perfect for science hoppers for example. Those types of crafts are not buildt to provide a stockpile, and the mining is not the main focus of them. They only have converters and harvesters to be able to refuel, and as such the demand to include external ore tanks becomes a pain in the behind. Does it work with 1.3.1? Yup. Did you make this all on your own? Are you a master coder? Not really and not at all. I know some basic python and that is about it. This is a very simple mod, and I still had to recieve some help to make the code more stable. This was provided by Snark, helpful as always. License This work is licensed under the WTFPL license, which can be found here: WTFPL What this means is that you can do whatever you'd like with it. Change it. Sell it. Eat it. Distribute it. Yell at it. Knock yourself out, but do note that: This work is also distributed along with Module Manager, as permitted by the license of that particular work. This is a separate piece of work with it's own license. Credit (and a deep gratitude) for Module Manager goes to it's original creator ialdabaoth as well as to the current caretaker of the project, sarbian. The forum thread for the original release can be found here: Download Links: SpaceDock Source Code Uhm, I'm not sure, but the fact that the only code written is available through the .cfg should suffice, right? Change Log 1.2 -Included MiniAVC support -Included support for Decal Stickers -Changed folder structure -Updated version number for KSP 1.3.1 1.1 -Added Module Manager to the zip archive, because like a bafoon I forgot it during the original upload. Doh! 1.0 -Initial Release
  14. The smallest stock ISRU with 4 of the tiny stock drills. I have the drills mounted on the ISRU I have 4 small radiators mounted on the ISRU I have 4 medium folding radiators mounted on the ISRU Still the core temperature of the ISRU keeps going up
  15. I was trying to recreate Scott Manley's ISRU probe in his popular series Interstellar Quest, and ran into a difficulty Kerbal Space Program - Interstellar Quest 37 - Mining Ice Apparently Interstellar now converts Water to LqdHydrogen + LqdOxygen . Is there a way to have it produce LiquidFuel+Oxidizer instead? I looked into the Parts folder inside Warp Plugin, and couldn't find any obvious config file that I could edit to have Water Electrolysis produce LiquidFuel+Oxidizer Thanks in advance! PS: I'm a total n00b when it comes to modding so please excuse my naïveté
  16. I was trying to recreate Scott Manley's ISRU probe in his popular series Interstellar Quest, and ran into a difficulty Kerbal Space Program - Interstellar Quest 37 - Mining Ice Apparently Interstellar now converts Water to LqdHydrogen + LqdOxygen . Is there a way to have it produce LiquidFuel+Oxidizer instead? I looked into the Parts folder inside Warp Plugin, and couldn't find any obvious config file that I could edit to have Water Electrolysis produce LiquidFuel+Oxidizer Thanks in advance! PS: I'm a total n00b when it comes to modding so please excuse my naïveté
  17. Hello everyone! Inspired by the XenonISRU mod, made by @Xyphos, I've decided to make a simple CFG file that adds the ability to make Xenon Gas, Solid Fuel and Ablator to all ISRU units in the game. The config file just steals the Monoprop making MODULE, and copies it a few times. In theory, it works with mods too (I've tested it with the Stockalike Mining Extension mod made by @SuicidalInsanity). Implementing other resources (Community Resource Pack) is a possibility for the future. License-wise, you are all free to do anything with it. Download here!
  18. I'm going to send a MAV on Mars almost empty (with just the right amount of Hydrolox fuel to land) and then refuel it trough RealISRU (sadly still not completed, but it works).I need help with methods to extract the fuel from the surface/atmosphere , chemical conversions and some math with it. Landing config: Mars takeoff config: I have 15 months to produce all that fuel.(around 85 tons)
  19. I feel like cheating when i use ISRU and was wondering... Are Drills and Conver-o-trons minimally based on actual realistic designs or prototypes?
  20. Hi all! The short question: I'd love to hear recommendations on orbital altitudes for a refinery operation that will mine ore on Ike and refine it in Dunan orbit. The longer explanation: For the last week or so I've been playing in Sandbox, working out how to most effectively set up logistical infrastructures all around the stock solar system. I started by setting up a full-coverage Comm relay and ScanSat (the mod) network around every body on the stock game. I've done all this before, of course, but never as methodically and efficiently as I'd like. So far the four inner planets are covered, and various satellite carriers are nearing their destinations at Dres, Jool, and Eeloo. Now I've turned my attention to setting up fuel depots and ISRU operations, and have two flotillas of fuel stations, mining landers, in-system tankers, interplantery tankers, etc. headed to Duna and Dres. All un-Kerballed and drone-controlled, but with enough modularity to be turned into crewed vessels in the future. (Before it's mentioned, I know depots and ISRU aren't necessarily the easiest or most efficient ways to explore the system, but for the purpose of this save game, that's what I'm playing with.) I already have a clear plan for Dres; with an ore miner tailored for landing on the planet and another dedicated to the asteroids surrounding it. They'll bring raw ore to an orbital refinery/tankage station. The reason for this post: I'm not sure exactly what I want to do at Duna. The mining lander is large (by my standards) and can bring 10,000 units of ore from Ike to anywhere in the Dunan system. The depot will refuel Kerballed missions to Duna, and a few re-usable Duna Lander/Ascent vehicles that will remain in-system for surface explorations. It may also be used to send re-fueling tankers further afield, particularly to Jool, though a full Kerballed expedition to that system is still only a drawing-board notion. SO... any suggestions, tips, or other observations? Specifically, will I be better served to keep the main Fuel Depot/Refinery station in orbit around Ike, or should it orbit Duna? If the latter, will a high (near the SOI margin), medium (outside Ike's orbit), or low (inside Ike's orbit) altitude work best for my purposes? Keep in mind the station itself has no propulsion, but is configured so the Mining Lander itself can propel the entire depot (and is in fact doing that right now, toward a Duna intercept in a few hundred days). There are also several fuel carriers around Duna (most of them leftovers from the Comm/Scan satellite missions) that can move fuel from the depot to vessels that need it. I'm asking not just in terms of absolute efficiency (as in launch costs and fuel consumption) but also in terms of my convenience and "playability" (i.e. avoiding days-long warping to rendezvous various vessels from high orbits), and finding a satisfying balance between the two. I hope I've laid out enough to explain what I'm looking for in terms of feedback, without droning (no pun intended) on too long. Note: I'm playing with a smattering of mods, but mainly for aesthetics. All my craft are (virtually) analogous to stock vessels, so a full mod list doesn't seem necessary. Beyond that I rely heavily on KER and KAC to design and keep track of all the (40? 50?) missions ongoing right now. Your thoughts appreciated.
  21. Hello, Kerbonauts, i was thinking to run a new career save as a sort of oil company. Now I just need to figure out how to mine as efficiently as possible. So my questions are: Which place in the Kerbol system is the best for mining? Should I convert to LF/O/Monopropellant? Use orbital refinery/storage stations? Thanks in advance.
  22. [WIP] This is a mod that adds extra Ore holding tanks for KSP, notably smaller ones. The stock Ore tanks in KSP, in my opinion, are too big for smaller landing craft (with the radial holding tank as an exception). Therefore, I am making a mod pack for myself that will give more Ore tank sizes, and also thought about releasing it to the public. Furthermore, the game has two inline-mounted ore tanks, both 1.25m and 2.5m, respectively. However, I do believe that they are too long to fit on a lander of some sort and I would like to make a half-version of the 1.25m ore tank, with exactly half the storage capacity. This wouldn't change the fact that it is 1.25m, though, it would only change the height of the tank. This would in turn enable it to be mounted on crafts more compactly. If this mod is what people may consider using after development, then please reply to this forum as this is going to go ahead for my personal use but I would like to see if the general community would like to also use these parts. The textures will probably be similar, but they might not be identical for reasons to do with copyright of Squad's textures. I will look into this. Speculated parts list: 0.625m Tiny Ore Tank; capacity around half of the 1.25 version. 1.25m Small Ore Tank; only difference to stock one is the height; therefore the capacity is half that of the stock 1.25m one. (Possibly) 3.75m Extra Large Ore Tank; for huge landers and bases; capacity twice the size of the 2.5m stock tank. These ore capacity numbers may change in development if they seem too high or too low for the relative size of the tank. All of above is true in the hope that my creativity skills with 3D design software is good enough to create a decent mod pack. Please submit your opinions below. Thanks. UPDATE: The first fuel tank is done. This one is the 1.25m half-variant one. The picture below shows the normal stock 1.25m Ore tank and next to it is the modded one. Cost: 750 Mass: 0.25 Ore Capacity: 150
  23. I am looking at a contract asking me to mine 1050 units of fresh ore from Gilly. I planned to send my mini-ISRU SSTO to Gilly to refuel for a later mission to Moho, but it's ore capacity is 150. Could I theoretically complete this contract? Bonus question: If so, will it still count the ore mined if I run the ISRU at the same time to immediately refine the fuel?
  24. I have a convert-o-tron 250 that is overheating even though the drills are turned off and TCSs are not at 100% cooling. Shot 2016-12-24 at 7.18.03 PM.png?dl=0 The ISRU works fine when only two converters are working, but starts overheating when the third is turned on. I have 6 x MKS Ranger TCS and 5 x large TCS at various places in the base. The base also has a PDU with the nuclear reactor running. Am I misinterpreting what "cooling" on the TCS means? Also, how do I interpret the thermal debug data shown in the action menu to make better sense of what I can do to stop it from overheating? Thanks
  25. Hey guys! Well I finally managed to make a working SSTA. I'm quite proud of this one. I usually just carelessly build spacecraft fast and forget things like solar panels, batteries ect. but this time I actually took my time in the SPH hanger and it turned out flawlessly! Well almost. (Forgot reaction wheels. ) This SSTA has VTOL engines, a functioning RCS system and enough DV to begin with to get to Duna or do a Minimus round trip without refueling. It also has four seats so you can easily put a pilot for control and an engineer to speed up mining. The VTOL engines are nicely balanced so landing on Duna with these will be a piece of cake! I still haven't tested its re-entry capabilities but I went up to about 1400 m/s before burning out on Rapiers so I assume it will be fine. The COM/COL placement might be bad so I am going to place an octagonal strut to mark the COL. This helped when I designed an aircraft launched shuttle because the shuttle carrier had stall problems. Download is coming soon. Still got tweaking to do so I thought I'd just put this here. Also Action group list + how to fly tutorial coming with download so stay tuned! Fire