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Right after Christmas 2016, I made one Steam backup and one Windows 10 backup (that one by just copying the KSP folder and moving it into another folder on my desktop), then used the built-in Steam functionality to downgrade my game to 1.1.3 in order to install Real Solar System, Realism Overhaul, Realistic Progression Zero and all of the recommended mods using CKAN. What do I do now that KSP RSS RO RP-0 can be played on 1.1.3? How do I update the game? (I'm new here, so I'm being conservative on the formatting before I can develop a pattern.)

Hi guys! hope everyone's doing great! I was wondering if someone ever managed to build a Skylon or similar SSTO spaceplane with the B9 motors and configs provided in RO. I only managed to get to 4.5km/s, almost half way to orbit - I can't seem to get the fuel fractions right and also don't think my ascent profile is quite right, I only manage to get to the engine's airbreathing temp limit at about 25km up in the atmosphere, which I think is a little low. I was just wondering if it's even possible EDIT: I know SSTO spaceplanes are pointless and impossible to build with current tech... but hey it's for fun that I'm trying!

For a long time in Kerbal Space Program, I have been wondering, is it possible to get into orbit in an SSTO in Real Solar System? I have done it myself with some certain mods, and I think that it is possible, but just barely. RULES: No Alt+F12, No Hyperedit, No editing the Save file Vacuum TWR cannot be greater than 0.8 for all possible engine combinations. (I want you to use Jet engines to get into space) Must Have Apoapsis and Periapsis above 140Km. Solid Rocket Boosters are allowed, but only to get you off the launchpad You may also have up to six radially detachable fuel tanks, but they must be decoupled before leaving the atmosphere. Proof that it is possible to get into Space in RSS with a plane SSTO: Edit: I actually have made it into orbit before with this, I just had some problems with it this time around. SCORING: 500 Points - Getting Into Orbit 300 Points - Bringing a Payload Into Orbit which weighs more than 1/3 Ton 500 Points - Bringing a Kerbal Into Orbit -400 Points - Dropped any parts over the course of the mission (An SSTO should not have any staging) 200 Points - Landing again +100 Points - Landed within 100 Km. of KSC +500 Points - Landed on Runway 500 Points - Getting into "High" Orbit 400 Points - Flyby of moon 1000 Points - Landing on moon +600 Points - Returning From Moon +700 Points - Planting Flag on Moon 300 Points - Escaping Kerbin's SOI 1000 Points - Per other Planet's Soi Entered 2000 Points Landing on another Planet +1000 Points Returning from another Planet 400 Points - Using Realism Overhaul Parts (The whole package including limited Ignitions) 601 Points - Using FAR (Aerodynamic failures are a hard workaround) 1000 Points - Using Stock Balanced Parts 2500 Points - Not having any mods except RSS If you do anything else that I consider point worthy on your mission, I will give you a variable amount of points based on how hard what you did was. HIGH SCORE BOARD: Me: 100 points MODS ALLOWED: RSS or any other planet packs that add to RSS (Duh) Realism Overhaul and all parts that come with it (Don't use it with other part mods though) Instell Incorporated Experimental Technologies B9 Aerospace Firespitter (Like you'd Need it) Mech Jeb or Kerbal Engineer (Flight Guidance is allowed on Mech Jeb) Venn's Stock Revamp Tweak Scale RLA Continued Raster Prop Monitor (Used For Iva Runs) KW Rocketry All Near Future Mods Ferram Aerospace Research Any other Part mod that is Stock balanced, and doesn't add any engines or fuel tanks that are more efficient than already existing parts. NOTICE: If you think any of the Rules should be changed, or that a new mod should be added to the list post it with your reply.

Hello everyone, Is there a way to make orbit in RSS? I was worst at making rockets (probably) and I hope you guys can give me some tips.

Hello everyone, I tried to make a rocket to reach orbit or sub-orbit (at least) in RSS but couldn't. So I just downloaded a Falcon 9 Dragon from somebody (I don't remember) and loaded it up. Liftoff starts well. After 2 and a half minutes (I think so) stage 1 were seperated But then, something went wrong. One of the tanks exploded a little which caused the whole ship to loose control. This forced me to abort the mission. I fired up the draco engines to reduce the speed of the capsule. Again, something went horribly wrong. The draco engines ran out of fuel. And they are no parachutes on the dragon. So there is only one option : doing an EVA ^ Image above shows dragon capsule exploded (right) So I (no, Jeb) prepared for the worst. ^ Jeb was falling down very fast Jeb plummeted to the ground at approx 50 m/s Luckily I reverted the flight to the beginning, and Jeb was safe.

So, its time to land an unmanned probe on the surface of Venus. I've never done this before. Do you have experience or any advices for me? Do I need additional engines or is a single parachute enough for a safe touchdown ? I had the Idea to place everything inside a 2m ServiceBay with a Heatshield Down below and a parachute on the top, do you think that could work? By the way, here is my current TechTree:

Hello. The question is, plainly put, what is the most effective exploration strategy for Jupiter (in terms of getting more science and perhaps some fun along the way)? I'm currently playing RSS/RO/RP-0 build (not sure what the exact versions are, KSP is 1.2.2), and I have a probe that just left Earth's SOI with slightly more than 4k of delta-v on board; its current Jupiter periapsis is ~ 2200 km with an orbit a few degrees off the satellites' plane. Initially, I was planning to capture into satellites' plane and then one by one catch them on flybys. But now I'm more inclined to go more inclined: that is, polar (Juno style). That way I would get all the Jupiter's biomes (closing the Gestalt) and I'd also be able to catch Callisto and Ganymede (perhaps even Europa?) flybys as well (by looking for the encounter at ascending/descending nodes). Then the next probe that would enter the system might not bother with Jupiter, and go for satellites right away (e.g. for orbiting etc.). What do you guys think?

This is just place for you to brainstorm and share what star systems should be added to the Constellations mod. I plan on adding the ones below soon. Planned Systems 55 Cancri (Copernicus) Epsilon Eridani (Ran) GJ 667 Current Star Systems Alpha Centauri Proxima Centauri (all planets have been added) GJ 3293 (all planets have been added) HD 10180 (all planets have been added) Tau Ceti (all planets have been added) Wolf 1061 (all planets have been added) Ursa Major

At the moment, I am building a spacecraft which will do moon fly-by's and enter low moon orbits. The panel shows Food, Water and Oxygen support for ~53 days, but for Waste, WasteWater only 7, respectively 1 day. What happens if I stay in space longer than the supported 7 days ? Do I have to carry all the waste ?

It was time to upgrade my PC, so I went for a Ryzen 5 1600 + Sapphire rx580 Nitro+ Limited Edidtion, and kept my Samsung 850 EVO I was and am playing 1.1.2, Modded with RSS+RO + essential mods + a few more. KSP on the new PC is just a folder copy from the old PC (same install). Game loading improved greatly, with about 9 minutes on the old PC vs 2:30 to 3 minutes on the new, but everything else feels almost the same... Same launchpad loading times, same frame drop on flying bigish rockets, etc. VAB is a bit more responsive, but everything else feels kind of same. I didn't try a stock install, only modded. My RX580 doesn't start the fans until it is pushed and start heating, and it never ever started the fans while playing KSP, and CPU was at 48C max temp. As if both CPU and GPU were not utilized at all... I also play ME Andromeda, which runs perfect with most settings on ultra high (as opposed to before, were it was straggling and glitching with the lowest settings) To the question. Is there something that I can do to have some improvement on performance on KSP? Some setting etc to utilize my new system better? Maybe newer KSP versions like 1.2 will run better? I keep 1.1.2 for MOD compatibility, as I will have to rebuild most of my rockets if I change KSP version, and I try to avoid it. I spent hours and hours on building and fine-tunning my rockets and editing cfgs, have loads of orbiting satellites, and i am terrified to the idea of starting over, due to some not updated mods that I currently use) ****IMPORTANT NOTICE: DO NOT COMPARE INTEL & AMD HERE PLEASE. If you want to, then start a new thread for that on The Lounge section.****

Hello everybody, I am here to announce the proud launch of TechTier. We are based around creating a realistic space program environment. We will include top of the line realistic launch times, conditions, physics, and of course rockets. For instance, say that today the temperature at Cape Canaveral is 78 degrees Fahrenheit, this is a nominal launch temperature if we had a launch set for today. We will be using extra realisticness by adding in launch timer and event callout. We will also be using others such as booster cams, (no floating cameras), occasional failures, and real development times for new rockets and technology. Any real world satellites or suggestions will be accepted if available with our current rocket capabilities. I am running a pretty packed version of Realism Overhaul to meet real world requirements. We primarily specialize in LEO station building, LEO or GSO orbits, as well as NASA related missions. I will mainly be launching from Cape Canaveral, but if required, I have KSC switcher for maximum performance. I will soon set up a post for real world or highly detailed satellite suggestions as well as, eventually, manned missions. While this is 100% for the fun of it basically, I will, to the best of my knowledge, explain the physics and reasoning behind my designs. I hope everybody enjoys this journey, and without further adue, enjoy! Link to my heroes who inspired me: http://www.spacex.com/

I want to share/store documents and plans I (and others!) make for interplanetary missions. I intend to start with basic/boring information, like ballistic coefficients, heat shield information, etc.that will be useful to see for planning a mission. I intend to draw from data of actual carried out or planned missions, but feel free to post information about missions you've carried out with the full RSS/RO/RP-0 stack in KSP 1.1 or 1.2. For starters, I've got this document which lays the ground for a Venus balloon mission. A heatshield is required to slow the craft down at Venus, of course, but the idea is that a balloon/probe combination would be great for gathering information from Venus. I also have the notion that using a balloon would be the best way to attempt to bring a probe back to Venus' orbit from the surface of Venus. Once the balloon & payload are up past most of the atmosphere, a rocket could be used to rise the rest of the way to orbit. https://spaceflightsystems.grc.nasa.gov/SSPO/SP/VenusUpper/Presentations/gage_VenusEntryBalloonsUAVs.pdf

Hey everybody! In the Science & Spaceflight subforum and over at NSF, I've been discussing a proposed reusable methalox upper stage for the Falcon family as a precursor to SpaceX's ITS programs. The Air Force has already given SpaceX funding to develop a methalox upper stage, so this is something that's quite probable. In the Ideas for a fully reusable launch vehicle thread, I outlined a 4-meter-wide biconic spacecraft with some pretty cool capabilities. By the numbers: Dry mass: 11.07 tonnes Propellant type: subcooled methalox Propellant mass: 141.5 tonnes Main propulsion: 2x development Raptors Auxiliary landing propulsion: 8x pressure-fed methalox thrusters Main propulsion thrust: 2,291.6 kN (vacuum only) Main propulsion isp: 381 s (vacuum only) Auxiliary propulsion thrust: 736 kN vacuum, 688 kN SL Auxiliary propulsion isp: 326 s vacuum, 305 s SL TPS: PICA-X It's fully reusable. EDL on Earth (or Mars) looks like this (taken from the Mid-L/D NASA MAV concept; not representative of vehicle design): As shown in the mockup, the landing thrusters are covered by TPS-equipped panels; these actuate on landing to serve as landing skids/legs. Split flaps or other control surfaces can be used for control during re-entry. This upper stage serves as a drop-in replacement for the current Falcon 9 upper stage and can be launched on Falcon 9 FT or Falcon Heavy. By my estimates, it should be able to outperform the current upper stage for F9 and FH while reserving plenty of propellant for landing. The wing extensions are symmetric in two planes and come out from the body not unlike the ITS winglet extensions, as shown loosely in this rough sketch of a launch on a Falcon 9 Block 5 first stage: I would love to build this myself and simulate flying, etc., but I only have the demo and I don't have RSS or procedural parts. If anyone has RSS and procedural parts and would love to take a whack at building this, I would love to see the finished product! It would be really cool to see simulated EDL on Earth, the Moon, and Mars. Can't give you anything for it other than mad props, but if you've got the time, I'd really be thrilled to see. I think a few other people would as well.

Is there any mods that allow me to play RSS as if I was playing vanilla KSP? I know I can use SMURFF or Realism overhaul to make the rockets realistic but I am sick of building huge 1000 ton asparagus monsters just to get a single kerbal to land on the moon. I used KIDS in the past and had a blast exploring the real solar system with kerbal sized rockets but now its not supported and I can't find any alternatives. Help.

add it so you can switch versions like you can go to 0.16 also i would like 5 meter parts because they would be much more powerful and we could launch are creations and have less part count and it would be less laggy so you could fit the bigger payloads in fairings also you should add RSS in the game nathankell made i like it very much. and also clouds and scattering effects for planets and in astronomer's visual pack.

Hello

I am very new to RO and RSS and when I am crafting my new rocket, it has negative mass and center of mass was well below the rocket. Picture 1 Picture 2 When launching, the rocket crash and clips with other parts.

I have recently returned to KSP and was looking forward to the integrated telemetry and wanted to try the RO / FASA / Historical Contracts mods. After a few days playing with the available pre-release versions on GITHUB I seem to have everything working except for RealHeat (which appears to be abandoned?). The early game USSR craft seem to be a bit under powered and the Saturn V only has a TWR of .31. I've tried merging the pending pulls on FASA/RO GIT's but the mass and thrust are right (maybe not counting all the engines?). Anyway, I was just wondering if there is anybody else that wants to collaborate on getting RO working again, or should I just wait it out? Happy Landings! -Dead

I was trying to create myself a RSS "modpack", but both because I'm lazy and because I'm bad at searching stuff, I can't find any lists of mods that I must have in order to play RSS correctly. Is someone willing to write a list of mods (just the list, I'll find by myself all the downloads) that I need?