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  1. lemon cup's Stellar Frontier Initiative presents... PROJECT STARPOWER - Combining Kerbin's many sectors of industrial might with years of trailblazing research and experimentation in the field of nuclear fusion propulsion. STARPOWER aims to do what has never been done in the history of Kerbalkind, and do so with the utmost ambition and intrepidity: Harness the latest in fusion drive technology to send a crew of 6 brave kerbonauts to the surface of Laythe, and back, in under 6 months. CONTENTS Introduction Part 1: Pre-Mission Part 2: Departure Part 3: Arrival Part 4: Landing Part 5: Return Part 6: Home Epilogue: The Future Introduction PREFACE This is a somewhat straightforward mission to Laythe with a few twists and heavy emphasis on realism, or rather, what could be reasonably assumed to occur and what obstacles (some huge) would have to be overcome. I couldn't make up my mind on how hard to go with this, so I figured I'd go all in! Expect detailed explanations, real-world science, tons of pictures, and the unwitting Kerbal perspectives on such matters. That being said I will do my best to keep fluff to a minimum, and content rolling in thick. MOD LIST Lots...I won't list them all! Rather I will list the ones that feature prominently here in plain sight. Those that reside beneath the surface, I will mention throughout if I think it to be relevant. In order of significance: JNSQ - the astounding community-favorite planet pack, where this all takes place. Far Future Technologies(beta) - provides all of the theoretical nuclear propulsion aspects that make this mission possible; Nertea just dropped the 1.0 release for download. Near Future Technologies (full suite) - I think of this as the de facto expansion pack to KSP as I know it, adds incredible depth and utility parts for advanced spaceflight and features heavily on this mission. OPT Spaceplane - used to craft the Mk.III-J "Shadowfax," the mission's interplanetary SSTO. Restock - revamped models for every stock part, meshes flawlessly with NFT and other mods. Kerbal Atomics - nuclear fission reactors and advanced NTR rockets CryoEngines/Tanks - adds hydrolox and methalox engines and tankage SSPXR - Stockalike Station Parts Expansion Redux adds the large hab modules you'll see here. Kerbal Konstructs - you will occasionally see some decorative infrastructure, thanks to this mod. Visual Mods include: EVE, Scatterer, TUFX, DistantObjectEnhancements, and Planetshine Some QOL mods: MechJeb, KerbalEngineerRedux, BetterTimeWarp, PersistentThrust, Kerbal Joint Reinforcement, Tweakscale, RCS Build Aid, EditorExtensionsRedux, and more... AND LASTLY, playing in KSP 1.10.1, let's get started. STELLAR FRONTIER INITIATIVE Excelling where previous space programs have failed, SFI was founded to put a stop to repetitive gameplay mission architecture centered in Low Kerbin Orbit. Instead of wasting excess time, resources, and funds at the behest of corrupt save files administration changes and economic lulls, SFI is the result of a joint venture between many Kerbal nations to go to the Mun, Duna, and beyond, and this time for good. Many strides have been made in the past 3 decades. We've researched much science, completed many contracts, and earned much reputation. Also we took some pretty pictures. Over the last 10 years, breakthroughs in rocket propulsion and particle physics has led to a boom in the exploration of parts unknown. I'm playing in JNSQ, where planets are 2.7x the size and even further away from each other. A minimum-energy Hohmann transfer to the Mun takes 4 days. To Duna takes almost 9 months, and beyond that, years. The reality is, Kerbals don't live such a long time, being the little frog men that they are, and that would be cut even shorter should they be exposed to the harsh radiation of interplanetary space for such long durations. Of keen interest to Kerbalkind is Laythe, the crown jewel of, erm... Jool. Before now, it has been held beyond our reach by vast gulfs of time and space, accessible only by our long range probes. But this, is the Fusion era! Behold the latest in experimental atmospheric probes designed to study Laythe and identify areas of interest for future exploration teams. Nicknamed the "Blindwolf," it is both a high-concentration test bed, and a valuable research platform. It is able to convert superheated air into reaction mass via a state of the art high-powered electromagnetic ramjet, and a compact spherical Deuterium-Deuterium powerplant generates the electricity necessary to do so. Top speed is limited only by the melting point of the skin. As it tears through Laythe's atmosphere, it is able to send back telemetry on a particularly optimal equatorial island, with ample flats for a landing... All that's left to do is assemble the vessel, the crew and their vehicle, and the resources needed to get them there. Easy, right?
  2. Make a tiniest SSTO. No cheat No mod Leader Board 1. @camacju4.4 tons 2. @jinnantonix6.9ton 3. @jinnantonixagain 7.085ton 4. @AeroGav8 tons Point leader board 1. @jinnantonixagain 43 points 2. @jinnantonix18 points 3. @camacju10 points, SSTO mass without payload counts Kudos: Add some paload (500k -1ton) (10+points) Put two kerbals to orbit (18+points) Add some bigger paload (1+ton) (25+points)
  3. Welcome to Spaceplane Innovations, the online leader in executive Spaceplane sales. Dropping tanks is so yesterday, earn back some self-respect by going fully-reusable today! We have Interplanetary leviathans and nimble Mun Hoppers, Single-stage-to-anywheres and Cargo-carrying brutes. All capable of high crew capacity and total galactic dominance. Shop now, the SSTO of your dreams is just a click away. We also make rockets. View the full catalogue! Click to view the full catalogue! Artemis Class These spaceplanes are the biggest of the bunch (so far), consisting of 3 Mk3 fuselages side-by-side, with the ability to carry an enormous amount of cargo/crew to many different interplanetary destinations. The Archangel is the first of the Artemis line, and has the ability to easily go to Duna or Mun with 60 Kerbals, and pilots who have a good grasp of gravity assists will find further destinations, such as Eeloo, very possible as well! Video - Mun mission Video - Eeloo mission The Artemis is a monstrous spaceplane capable of carrying 124 kerbals to LKO with just over 4,000 m/s of DeltaV to spare. It can't fly quite as far as the Archangel, but it is quite capable of going to Laythe and back without refuelling. Video - Laythe mission Archangel Download Archangel Download Archangel v2 Download Artemis Download Argus Class These spaceplanes are big, brutal, and capable of interplanetary missions without breaking a sweat, independent of mining or refuelling. WARNING: You will need to replace the landing gear on the Argus II and Engadine with larger ones if you're playing in 1.1 or later. The Odyssey will work fine though. The Argus was built as a Bop SSTO, but in the end was mainly used for Duna cargo missions and Eeloo voyages. It doesn't work so great in 1.05, and so is no longer sold by Spaceplane Innovations. Video - Eeloo mission Video - Duna mission The Engadine was the hugely popular successor to the Argus, packing more DeltaV and a massive 20 Kerbal capacity. So far it has only been used for Mun landings, but we at Spaceplane Innovations believe it could easily be used for Duna returns too. Video The Argus II was built following the success of the Engadine as an ultra-long-range SSTO. It has more m/s of DeltaV in LKO than any other SSTO produced by Spaceplane Innovations. Video The Odyssey was built to replace the legendary Engadine. doubling its crew capacity while retaining its high range. Duna and Gilly missions are well within its capabilities, as well as Eeloo and Jool for those who have mastered the fine art of gravity assists. Video - Mun mission Make no mistake: these planes are unruly, bulky, unbalanced and difficult to tame. They are therefore best suited to more adept pilots who understand gravity assists and how to efficiently ascend from Kerbin. They're hard to master, but for those with the patience to learn their functions the pay-off is huge. Argus II Download Engadine Download Odyssey Download Acacius Class Acacius ships have an IRSU on board and are capable of refuelling themselves using mining equipment. These are at the forefront of exploration, and are the best "single-stage-to-anywhere" planes we offer! Only one model is currently available for consumers: The Acacius 2 is the first SSTO produced by Spaceplane Innovations to feature the "Single Stage to Everywhere" guarantee. Doesn't do Tylo. Or Eve. Or Jool. These craft are ideal for beginners who want to get to grips with gravity assists or the Jool system, without having to worry about fuel. WARNING: You may need to replace the landing gear with larger ones if you're playing in 1.1 or later. Video Acacius 2 Download Dune Class Before the Argus class, there was the Dune class. The second oldest class of spaceplane made by Spaceplane innovations (after the discontinued Revenge class), these are lightweight, agile, and pack enough DeltaV for Duna, Minmus, Mun and Gilly. Flybys of planets further out are also possible. Dune 3 is the latest and greatest in this class, sporting 3 seats and a cosy interior. These are moderately difficult to use, but experienced pilots shouldn't have too much trouble. WARNING: You may need to replace the landing gear with larger ones if you're playing in 1.1 or later. Video Dune 3 Download Phantom Class These SSTOs are the little-brothers of the Argus Class, and are slightly larger than the Dune class. WARNING: You may need to replace the landing gear with larger ones if you're playing in 1.1 or later. With room for 6 kerbals, the Phantom class is currently offers 3 models: The Minmus Trainer is the easiest-to-use SSTO sold by Spaceplane Innovations, and was specifically designed to train budding kerbalnauts in the fine art of Minmus SSTO-ing. Only the instructions are available for purchase, so that pilots can also learn how to build an SSTO too! Video (SSTO Tutorial) The Mun Phantom was the first Phantom Class SSTO packing enough DeltaV for Mun and Gilly landings, in addition to being able to do Duna flybys. Video The Mun Phantom 2 is a modified version of the Duna Phantom, packing a spacious cargo bay for all your rover carrying needs! Video The Duna Phantom is able to carry 6 kerbals to Duna and back, all in a sleek Mk2 fuselage! Video Video (SSTO Tutorial) The Laythe Phantom is capable of taking 2 kerbals to Laythe and back without refuelling! Craft file has been altered so that it won't enter a flat spin when the fuel tanks are empty now Video Mun Phantom Download Mun Phantom 2 Download Duna Phantom Download Laythe Phantom Download Vulture Class These SSTOs are designed purely for LKO missions. Vulture 1 is the first publicly available model in the Vulture class, capable of carrying 6 Kerbals comfortably to either a polar or equatorial orbit. Vulture 1 download Matlon Laboratories Matlon Laboratories is a new company, designing cutting-edge rockets, shuttles, stations, bases, rovers, and much more! SSTOs are still very-much exclusive to Spaceplane Innovations, but for anything else, Matlon has you covered! Brutus is a high-capacity Space Shuttle, and uses Solid Fuel boosters and 3 Vectoring engines to lift the orbiter into space. Played a key-role in the construction of the SkyBase Space Station, which was commissioned following the destruction of SpaceLab during the Duna Attacks strikes Video Sparrow is a seaplane packing every science experiment unit in the game, in addition to communications tech and a deployable mini-sub! Video Monolith Station aims to bring stations to the masses, being a space station capable of being fully assembled in 1 Launch Brutus Download Sparrow Download Monolith Station Download
  4. I present to you fine spaceplane enthusiasts... the Kerbal Wind Tunnel mod! We all build spaceplanes to fly faster and higher, but how do you know how fast or how high your current design can go? In the real world of aircraft design, engineers calculate the flight envelope for their aircraft before the first test flight rolls out. This mod runs your spaceplane through a virtual wind tunnel while still in the SPH and predicts its engine and flight performance at every speed and altitude. It also gives you a readout of various performance curves, plotting against angle of attack: ... and velocity: Try it out and start building even better spaceplanes today! You can even output the data to a CSV file to incorporate knowledge of the performance data into a KOS script or the like! Check out this Imgur album for more details on these images and more: https://imgur.com/a/D2i4Fge Download it from GitHub: https://github.com/DBooots/KerbalWindTunnel/releases Or SpaceDock: https://spacedock.info/mod/1927/Kerbal Wind Tunnel Source: https://github.com/DBooots/KerbalWindTunnel Released under the MIT License (with sub-components under their own license). P.S. This mod incorporates a pretty sweet graph-drawing library I made. If anyone's interested in super-simple graphing of data, hit me up.
  5. Trying to work on Eve SSTO, realized that it's impossible. Although, in this process I got a single stage (stock) propeller plane with rockets equipped capable of orbit. It ascends to the edge of the stratosphere only with propellers, and get into orbit with rockets. Album https://imgur.com/a/Ux6qS will appear when post is submitted So propeller plane can get to stable orbit, if enough rocket engines and fuel are provided. Then, a new question arose. How far can a propeller plane go? Rules: 1. No cheating, No Alt+F12 cheats in flight. (Visible bits are allowed) + No mods with gameplay effects. (Again, visible mods are allowed) 2. Only rocket engines and stock propellers are allowed on the entire flight. No airbreathers, no infiniglides, no gyroscope drive, etc. 3. The plane should be able to take off and fly around fully-fueled with propeller-only. 4. Propellers should be able to be re-docked to the craft, to ensure the completeness of the craft on orbit after physics load. 5. It shouldn't take over an hour for a craft to get to orbit. 6. At least a kerbal should be on board. Score is the dv left on orbit. The destination of the plane can be noted on the leaderboard. Leaderboard: + All rocket engines allowed 1. @Reusables 3m/s 2. @Reusables 0m/s + Propeller-Nerv SSTO 1. @Reusables 3m/s + Propeller-Ion SSTO 1. + Propeller Passenger Plane (contains Mk3 Passenger Module) 1.
  6. The history of Eve SSTOs and reusables For a long time it was said, Eve SSTOs are impossible. Even going there and back reusable was unthinkable. But then a hand full of brave Kerbonauts put all their efforts in proving this wrong. This is their story. 03.09.2015 - V1.0.4 - First SSTO plane from Eve's surface to Orbit @astrobond was the first to do the impossible. He created this SSTO which was capable of getting from surface to orbit using stock parts and physics. To stay in the narrow margin, the control was given to KOS. 05.07.2016 - V1.1.3(?) - First reusable trip from Kerbin to Eve's surface and back @Stratzenblitz75 was the first who managed to do the entire trip from Kerbin to Eve's surface and back completely reusable. He is using a spectacular and never seen before suborbital catch of the lander, as well as massive SSTO launch systems. 19.08.2016 - V1.1.3 - SSTO rocket from Eve's surface to Orbit @Kergarin (I) was inspired and motivated by @astrobond's SSTO to start playing around with different SSTO designs. Coming to the conclusion, that SSTO rockets actually seem to work better than planes, giving a larger margin and payload. 23.08.2016 - V1.1.3 - First SSTO Lander from Eve's orbit to surface and back @Kergarin (I) was then able to scale it up to a bigger version, with enough payload to equip it with isru and seats for all our 4 brave Kerbals. Resulting in the first ever SSTO wich can not only launch from Eve but also land on its own in one piece. By being refuelled in low Eve orbit, this craft could have done the entire trip Kerbin to Eve and back reusable. My plan was, to do a reusable trip to all landable bodys in the Kerbol system based on this lander plus an orbiter, but this plan should be crossed soon... 11.10.2016 - KSP 1.2 release - an increase in Eve's atmospheric pressure changes the rules The pressure of Eve's atmosphere was increased, resulting in even higher drag and giving all engines lower thrust and Isp, making Eve SSTOs even harder... it seemed. The change in the Mammoth engine thrust for example: For reference Eve's atmospheric pressure in 1.2.2: After this change my SSTO lander stopped working, at least with the needed payload for ISRU. While the change in pressure made SSTO rockets harder, it will soon turn out that SSTO planes now work better again. 29.10.2016 - V1.2.2 - the first asteroid refuelling assisted SSTO plane from Kerbin to Eve's surface and back @EvermoreAlpaca built this craft initially in 1.1.3., and when 1.2 came out, this plane worked even better, opposed to SSTO rockets. This craft can get from Kerbin to Eve's surface and back to Eve's orbit independent. It then needs orbital refuelling, to get back to kerbin, which is realized by the craft itself moving an asteroid to low Eve orbit in before, which is then used for ISRU refuelling. 28.01.2017 - V1.2.2 - SSTO rocket from Eve's surface to orbit achieved again @Kergarin (I) managed to make my small SSTO rocket work again in 1.2.2. But scaling it up did not work as good as back in previous versions. The ISRU lander would have become unhandleable large. So I cancelled this concept. 20.05.2017 - V1.2.2 - infinitely reusable trip to Eve (and first ever to everywhere else) and back Since my Eve SSTO lander doesn't work in 1.2.2 anymore (and I didn't want to do this in an old version), I adoptet @Stratzenblitz75's concept of suborbital docking and developed it to a single ISRU ship wich splits in two for the Eve landing with his friendly permission (thanks again!). (Creating the first ever ship which can independently and forever travel between all 14 landable bodys. But that's on another page.) Skip to 3:40 for Eve landing (caution: flickering scenes in fast forward) 07.03.2018 - V1.3.1 - smallest ever SSTO plane from Eve's surface to orbit @astrobond the creator of the first ever Eve SSTO comes back to the game. Presenting us the smallest ever seen Eve SSTO. Also it's the first not to use the Mammoth engine, but the Vector with a slightly lower twr. 11.06.2018 - V1.3.1 - reusable two stage plane from Eve's surface to orbit and back to surface @OHara created this reusable two stage plane, which can be used for crew rotations of 4 Kerbals per flight. It launches horizontal and then transitions to vertical ascend pushing the ap far above Eve's atmosphere. The second stage then undocks and accelerates to orbital speed before the first stage reenters and glides back to its starting position. The second stage can also be landed and then redocked to the first stage. The craft then needs some external refueling to be reused. 29.10.2018 - V1.5 - First completely independent SSTO plane from Kerbin to Eve and back SSTOs to Eve's surface and back to orbit were now proven to be possible, and they seemed to be the limit of possibilities. All of them need some kind of orbital refuelling or catch to escape from low Eve orbit. But then @EvermoreAlpaca did the unthinkable. A massive independent SSTO from Kerbin to Eve's surface and back to Kerbin. He managed to raise the payload on Eve ascend that much, that there was enough margin to fit an ion drive with enough dV to escape Eve's gravity and then send the ship back to Kerbin using some gravity assists, without any dependencys. 04.12.2018 - V1.5 - First stock electric prop SSTO plane from Eve's orbit to sea level and back to orbit (plus from and to Kerbin by external refuelling) @EvermoreAlpaca continues doing the impossible by presenting us this stock electric propeller assisted Eve sea level SSTO. It ascends from sea level to above 19km sole on electric props, then continues its way to orbit on conventional rocket engines. It can also launch and land at Kerbin, but needs external refueling to do so. This craft uses clipping for the stock props as well as engine clipping, but is honored in this list for being the first of its kind. 28.01.2020 - V1.8.1 (+ Making History + Breaking Ground) - First Breaking Ground electric prop multi engine SSTO plane from Eve's orbit to sea level and back to orbit @realseek was the first to show us a working sea level SSTO using electric rotors and blades from Breaking Ground, packed into cargo-bays to reduce their drag, after switching to rocket engines. It reaches 16km on electric props (two EM-64S rotos with 16x R25 blades on each. The rotors run at 60% power and a max RPM of 400). To escape Eve's still dense atmosphere, it uses a combination of 3 Vector engines and 2 Nervs to circularize. As if an Eve sea level SSTO would not be enough, this craft can land fully fuelled from orbit , also carries the extra weight of ISRU quipment without even needing it, because it can launch from Eve below 100% fuel and stiff make it to orbit with hundreds of m/s dV left to spare, while the craft even looks good. This is just insane! More pictures and details: https://imgur.com/gallery/afVyAv1 15.02.2020 - - V1.8.1 (+ Making History + Breaking Ground) - minimalistic Breaking Ground electric prop single engine SSTO plane from Eve's orbit to sea level and back to orbit (+ to and from Kerbin with a separate tug) @Kergarin i was a little to slow on this, and humbly take the second place. Props alone work great, and rockets alone work great. But in combination the drag of props after igniting the rockets is horrible. The way to deal with this, is placing them inside cargo bays, to shield their drag when they are not used. It would be beautiful to use hydraulic cylinders to make them stick out, and while this would be possible in term of weight and drag, they sadly the flex way to much to even lift off. I've tried a lot of designs for this since BG came out, and while @realseek found the mixed engine design work best for him, I found a single enige design work best for me. This craft uses two EM-32 Rotors with 6 R25 blades on each which run at 100% torque and max RPM to climb to 17km. To escape the dense atmosphere, this craft uses a single vector Engine on full thrust, and then carefully throttle adjustment to not overheat and circularize. This was done as grand finale in my reusable career playthrough: 28.05.2020 1.9.1(?) First stock (no DLC) electric prop SSTO helicopter rocket to sealevel and back without clipping (+ from Kerbin and back) @Stratzenblitz75 returned to Eve, almost 4 years after he was the first to do a completely reusable roundtrip from Kerbin to Eve and back using suborbital docking. This time he uses an SSTO rocket which is first lifted by insanely large counter rotating koaxial like props to 39km, and then ignited to get to orbit on rocket power in a single stage. The props consist of stock bearings, but they are not powered by the usual way of using reaction wheels. To reach the record height of 39km, large rover wheels power the props, which is obviously way more efficient. The craft features ISRU, and can therefore land and launch unlimited often and completely independent on Eve. The craft takes of from Kerbin using a single reusable launcher, and is pushed to Eve and back by an orbiter. This far Kerbalkind conquered the purple monster as of the middle of 2020. Can they go even further? Disclaimer:
  7. The Aeris 4A is a reasonably capable SSTO spaceplane, able to do a Mun or Minmus flyby, or even go interplanetary with proper gravity assists. It can also dock with other Aeris 4A. How far can you take one? You could try to fly a single Aeris 4A but might not make it too far. However, using one as a fuel tanker is an option...
  8. Moderator's Note: This craft was not designed to work with the current release of Kerbal Space Program. It was designed using an older version of the game and the craft's performance may not operate nor the craft appear exactly like it does in the video. Use at your own risk - it may cause your game to crash or behave in unpredictable ways. Howdy, Frostflux is an SSTO that can achieve orbit with some fuel left over. You might be able to get an encounter with Mun but definitely not be able to land on any of the moons. You can of course return to Kerbin and fly for a bit before the fuel runs out. Watch out for the swaying that may occur at higher altitudes. Download here: http://www.mediafire.com/file/vc3fc7drfdgkl3g/Frostflux+m8.craft Enjoy, Heretic391 (Chris)
  9. This was for a forum challenge (kind of an orange efficiency reboot) but I thought it merited its own mission report. If I had flown this mission better, I could definitely have included another landing, but I wasn't able to. This mission is at least a good proof of concept however. I don't think anyone else has gone this far with just an orange tank before. Craft in VAB. Since I can only use the orange tank as fuel, I don't need to use the Big-S wings (although I still could). Instead, I use the standard wing parts. The fairing, tank, intake, and engines are attached, rotated, and offset such that they produce much less drag. I use minimal rudder surfaces to reduce weight and drag, because I don't really end up using rudder and it's mostly just for stability. Also, the wings are rotated upwards 5 degrees to improve lift:drag ratio while running the lower efficiency nuclear engine in the atmosphere. Finally, I use a single Rapier and a single Nerv as engines. The result is a craft that doesn't look like most high performance SSTO craft but flies pretty well. The orange tank is drained completely of oxidizer before launch. Neither the Rapier's open cycle nor the Nerv require oxidizer, and I don't use the Rapier's closed cycle at all, since the high efficiency of the Nerv more than makes up for its weight. The closed cycle of the Rapier is only worth it for very light SSTO craft. I stay near sea level until 400 m/s when I start to climb. I level off at just over 20 km. At 1600 m/s I turn on the Nerv In Kerbin orbit with almost 5k delta-v left. Two periapsis kick burns give me a Mun assist. This transfer was inefficient but not so inefficient that I'd fly it again. Two Mun assists give me an orbit high above Kerbin where I can loiter until I fly past Mun again. A third Mun assist ejects me radially where I encounter Kerbin again in one year for another gravity assist. In the Kerbin encounter, I get another Mun assist to get more energy, since just a Kerbin encounter won't help me any. Using Kepler's third law, I try to get into a sun orbit with the sum of apoapsis and periapsis equal to 3.243 * 10^10, since that represents a 4:3 orbital resonance. This correction burn is very suboptimal but again I've got more than enough fuel. My calculations were precise enough that I already had the next Kerbin assist plotted. This raises my orbit up to Duna. Aerobraking at Duna Landed at Duna. This was really hard because of the low wing area and thin atmosphere. Ascent from Duna. My high pitch angle is visible here. Luckily my TWR is above 1 so I can afford to fly at a higher angle of attack until I can pick up speed. In Duna orbit. I've still got a good amount of fuel left. Can I make it to Laythe? Ike assist. Again this transfer was likely suboptimal, and I would fly this a different way if I were to do this mission again. Probably by using the same strategy I used for the Kerbin->Duna leg. I bounce off Kerbin and get a plane change, setting up an Eve encounter. I'm going to do a K-E-K-K-J route rather than something more efficient because the Ike assist gave me extra Kerbin relative velocity. Eve and Kerbin assists set up Eve flyby Tylo assist to capture around Jool and intersect with orbit of Laythe Descent on Laythe Aerobraking Landed on Laythe - much easier than Duna. Ascent from Laythe, going suborbital on just Rapiers Laythe orbit. I've got more than enough to get home from here. Vall and Laythe assists Tylo assist Kerbin and Eve assists Aerobraking at Kerbin Landed back at KSC
  10. Been working on this design for quite a while now, trying to find the perfect balance between aesthetics and functionality and I think I've finally done it! I would have liked to put together a video but I don't really have the time and skill to do that. To be honest I don't think this is even impressive anymore as more game changing updates have come. Imgur album detailing entire journey - https://imgur.com/gallery/FHxrjDr Takeoff - Landing on Laythe -
  11. The challenge was to make an entirely rocket based SSTO that launches vertically. I added another element of challenge which is that I only used 1.25m parts. This means that I can't get the same performance as if I used a Mammoth and a cluster of nuclear rockets, but this approach keeps part count and mass down. The rocket consists of a Vector engine for Kerbin takeoff and landing, and two Nerv engines for everything else. Inside the fairing are a command seat, reaction wheel, battery, and a bunch of Mk 0 fuel tanks. This rocket is very aerodynamic so I take a shallow ascent profile. At 1500 m/s I shut off the Vector engine and let the Nervs continue. I'm not using all the oxidizer here because I need it for the landing back on Kerbin. In Kerbin orbit I use the same sequence of Mun assists that I always use for an Eve transfer. Mun assist brings me into an orbital resonance that gives me a better assist three orbits later, which brings me into an orbit that gives me a final assist 3/4 of an orbit later. This flings me onto a 6:5 resonance with Kerbin, where I intersect Kerbin for another Mun assist, which drops my orbit down and gives me a plane change, where I get an intersection with Eve's orbit. I don't have enough Eve relative velocity to do a Kerbin-Eve-Kerbin-Kerbin-Jool route. So I do a Kerbin assist, followed by another Eve assist, to get greater Kerbin relative velocity. This gives me a Kerbin assist that puts me onto an orbit intersecting Jool's orbit. I need to intersect with Jool's orbit at the ascending node of Eeloo with Jool, but Jool is in the wrong place. So I swing by Kerbin one more time to adjust my orbital period. My problem now is not too little energy, but too much energy. I have to eject from Jool in a nearly prograde direction in order to reduce my Eeloo relative velocity, but that would put me on an escape trajectory. Instead, I use a Laythe assist to bleed off velocity relative to Jool and also do a plane change to line up my descending node with Eeloo's apoapsis. Doing this reduces the capture burn significantly. Laythe assist Only 35 m/s to capture around Eeloo. That's quite good In low Eeloo orbit, and I've got plenty of fuel to land and take off again. This rocket is tall so landing was a bit of a challenge. I had to quickload a bunch of times. Eventually, I found a flat enough place to touch down. The question is, is 1403 m/s enough to get home? Eeloo ascent In Eeloo orbit with 820 m/s remaining. This should be enough, as long as I remember to save enough liquid fuel for the powered landing on Kerbin. Jool transfer. As you can see, I can't get a Kerbin transfer orbit directly from a Jool transfer. Instead, I use a Tylo assist to build up relative velocity to Jool. The problem with this is that I can't eject from Jool at the right angle. Closeup of Tylo assist. 570 m/s left. I definitely have enough to make it home at this point so I accept a less than optimal correction burn. I solve the problem of ejection angle by setting up a second Jool assist at a better angle. Kerbin encounter plotted. I use Kerbin and Eve to slow down, and thanks to the double Jool assist I have more than enough energy to do so. Using the body lift of the near empty fuel tanks to slow down Terminal descent using the last of the oxidizer. Landed back on Kerbin.
  12. This will likely be where I upload pictures of stuff that I've made in KSP! If you don't like it, blame it on @adsii1970, as he told me the community liked screenshots.
  13. I wanted to build some sort of Duna Science unmanned space plane, to visit multiple biomes on Duna and send data back to Kerbin. I think a small Ion powered plane makes sense, but I’m not sure. Do you guys have any tips, suggestions? Has anyone ever tried this?
  14. From my previous experimence with rapier-nerv ssto on Earth, I though that venus ssto, of any kind (I assumed prop-nerv conventional wing craft), was impossible, due to how hard it is to go past beyound 10000m/s on lvn while still having decent twr. However couple months ago, I saw that some people were discussing that some parts were capable of generating a lift/drag ratio of hudreds, so I searched through the parts and found the magic parts( an specific arrangements of certain parts, dm me for detailed construction, since Stratzenblitz75 has a lot cooler mission ahead that will explain the working of magic wings in detail, so I won't spoil it), we will call this setup the "magic wing" from now. I put this aside for a while, since I was not able to resolve the misterios torque this setup was producing, and hence completely unable to control my craft. However recently, I discovered that the solution was remarkebly simple, by simply putting the Col instead of the geometric centre of the "magic wing" exactly below the craft dry and wet com( which coincide with each other), I got close to 0 aerodynamic torque, hence I was able to control the vehicle with only reaction wheel, which means I can get craft l/d really close to the theoretical maximum l/d ratio of "magic wings", after resolving the issue with takeoff and landing, I made a prototype electric ssto that can get into LEO with about 3000m/s of margin and about 7% of LEO payload fraction and only consuming 7900m/s of dv. This low dv use meant that I can reduce my twr a lot further, and hence put in a lot more xenon gas and having more dv. So I decided to do this mission, and the craft has following stats: 13.1t takeoff mass, 23500m/s of vacuum dv, 0.03 of initial vacuum twr, 2 ion engines powered solely by RTGs, 2 small dlc rotors, each with 6 R25 ducted fan baldes. To leo dv usage was about 8200m/s ,which leaves us with 15300m/s of dv, and the effective payload fraction was 33.9%, counting unused xenon tanks as payload. Earth launch:https://imgur.com/a/Wx0L5eE
  15. The Arrow Queen, an Interplanetary VTOL SSTO (Breaking Ground required) The Arrow Queen is a Mk2 style spaceplane, designed for VTOL and delivers 6 kerbals and up to 2020m/s delta-V in orbit. This is enough to land on Mun (with a suicide burn, but margins are maximum 100m/s), Duna (no parachutes necessary, just aerobrake and use retrograde nuclear thrust, margins around 500m/s) or Minmus before continuing into the rest of the universe. It also includes an ISRU unit for some (slow) refuelling. For VTOL, it features 6 rotating hover engines that are stowed away into mk2 cargobays for horizontal flight. It was a lot of work balancing CoM, CoL, CoT together into a functional spaceplane. But I think the result is quite well balanced. Download The craft was the result of an experiment with a VTOL SSTO, and through many iterations it reached the current status. Feel free to improve its design anytime! Its deltawing shape means it's highly aerodynamic: As nuclear engines provide all of the delta-V from 30km+, reaching orbit is not easy. Here's a screenshot during a 3 minute burn to Mun (acceleration of around 4m/s, so patience is required): As delta-V for Mun is marginal, I recommend flying straight into Mun and doing a suicide burn (THANK YOU, MECHJEB). Don't start the landing burn too late: Once you have landed, it's ISRU time! (Take enough food for 60 days at least) Landing on Duna seen from the cockpit (after some serious aerobraking, retrograde nuclear thrust is the easiest, like on the Mun): https://imgur.com/1UrtT Also check out it's lighter, and easier (non-nuclear) sister for LKO operation, The Arrowmaker: Download Arrowmaker
  16. The challenge here is to build a craft that can get to orbit twice without refueling, staging, or docking. Score is based on mass - the lighter the craft, the better. Bonus cookie points if you make an all rocket craft. More rules: You must come to a stop at KSC or the ground nearby between orbits. (Screenshot at 0 m/s on the ground). Scoreboard: camacju - 9.2 tons
  17. Mephisto Metalworks and Aeronautics. The Future is now. Link to Kerbalx-Hangars: https://kerbalx.com/Mephisto/craft XR-Series: Go everywhere - Kerbol Exploratory Latest Version is the XR-06 Ranger Mk III SSTA with attached Javelin Eve Landerfor four Kerbals https://kerbalx.com/Mephisto/XR-06-Ranger-Mk-III-Grand-Tour-with-Javelin-Eve-Lander Older Version is the XR-02 Ranger Mk I https://kerbalx.com/Mephisto/XR-02-Ranger-XR-04-Agamemnon-SSTA-and-Eve-Lander Four different crafts in one package: Ranger is a powerful SSTA, Agamemnon is a lightweight Eve lander and ascent vehicle, Tycho is the final stage of the Eve lander and can be docked into Ranger's service bay. Brahe is a moon truck addon for Tycho. Both can fit into Ranger's Service bay. The XR project was built upon results the older X-84 Akkadian / Ishtar project: Fly to every moon and planet in the stock solar system as well as in the outer planets mod and collect science with three Kerbals. The take-off-weight of Ranger SSTA / Agamemnon Eve Lander Combo is 30 t lower than the Akkadian / Ishtar at 120t. XR-01a Tycho Space Sledge https://kerbalx.com/Mephisto/XR-01a-Tycho-Space-Sledge XR-01b Brahe Moon Truck https://kerbalx.com/Mephisto/XR-01b-Brahe-Moon-Truck XR-02 Ranger https://kerbalx.com/Mephisto/XR-02-Long-Range-Scout-Moho--Tylo--Laythe--Kerbin XR-03 Ninsianna Eve Lander and Ascent Vehicle (32t, for Beginners) https://kerbalx.com/Mephisto/XR-03-Ninsianna-Eve-Lander XR-04 Agamemnon Eve Lander and Ascent Vehicle (26t, for advanced Players) https://kerbalx.com/Mephisto/XR-02-Ranger-XR-04-Agamemnon-SSTA-and-Eve-Lander XR-01 a/b Tycho / Brahe combo XR-02 Ranger SSTA XR-03 Ninsianna Eve lander with 32t Ascent Vehicle XR-04 Agamemnon Eve Lander with 26t Ascent Vehicle XR-02 /04 Ranger SSTA with Agamemnon Eve Lander - 120t take off weight. Enough oooomph for every planet and moon. XR-08 Behemoth Multi Mission SSTA 30t to Minmus, 10t to Tylo surface and back (with ISRU...) https://kerbalx.com/Mephisto/XR-08-Behemoth XR-08 Behemoth with Space Station https://kerbalx.com/Mephisto/XR-08-Behemoth-with-Station Dolphin Mk V Mini SSTO https://kerbalx.com/Mephisto/Dolphin-Mk-V XS-Series Extra Small to orbit: Small is the new big, thought the marketing guys. Here's to space on a budget. XS-01 Viper - upload pending- Viper is a lightweight, single use crew transfer system with a rapier and an ion stage. At 30 parts and 5.5t take off weight, it brings one Kerbal into orbit with 7.600 m/s dv left. This should suffice for most destinations in the Kerbol system. Fancy stuff like landing gears or parachutes is omitted. Just power up the engine and fly. TWR in orbit for the ion stage is 0.3, which is fairly reasonable. In order to not only bring pilots into space, it has drone core equipped. XS-02 Sparrow - upload pending - Sparrow is a light weight single stage to orbit concept with one rapier and one ion engine. At 6.3t take off weight, it brings one Kerbal to orbit regardless of profession. As the ion engine only has an TWR of 0.07 in low Kerbin orbit, getting somewhere is a game of patience. XS-03 Sparrowhawk https://kerbalx.com/Mephisto/XS-03-Sparrowhawk-RapierIon-SSTO-to-Minmus An improved version of the Sparrow, the XS-03 Sparrowhawk has significantly greater ranger and twice the thrust in low orbit. Now even with landing gear.The larger battery pack as well as the quad ion engines allow for sustained ion burns of app. 250 m/s. The TWR of 0.12 in LKO is fairly reasonable for ion engines. XS-04 All-Seeing Eye https://kerbalx.com/Mephisto/XS-04-All-Seeing-Eye The latest excrements in ore surveillance technology. Also knows your bad habbits and browser history. Comes equipped with ressource scanners, regular and relay antennas as well as repeateable science experiments. Powered by "a excrementsload of batteries and some spare ion engines", as the designers at the Kerbal Space Center put so eloquently. Comes with solar panels. Has roughly 15.000 m/s dV with ion engines, so evading it by moving to Dres or Eeloo seems kind of futile. Better use that incognito mode in your browser more often.... XS-05 Mighty Flea https://kerbalx.com/Mephisto/XS-05-Mighty-Flea-3t-Micro-SSTO 3t to orbit in a single stage. Kerbal included. No science experiments, no shenanigans. Mephisto. (To infinity and beyond.)
  18. I'm having a weird issue in v1.10.1 where my SSTO is constantly bouncing up and down on the runway upon loading, and refuses to stop for minutes, if ever. If I try to take off, even if the bouncing seems to have stopped, it starts to drift off the runway within seconds, and I inevitably over-correct resulting in a crash. You can see how the game registers a speed of 0.1 or 0.2m/s, which is entirely due to the bouncing. I've flown this design to orbit and back several times, so I know it isn't a design issue (although my other, smaller SSTO seems to be unaffected). No idea what the problem is, it just started happening last night and I haven't been able to launch one since.
  19. Hello all, After weeks of SSTO testing, and producing like 10 different designs, I've finally created my best design yet, the C-7 "snubnose" sat launcher ! A lightweight non-crewed spaceplane capable of getting a small mk1 satellite to LKO with ~350 m/s of delta-v to spare..... it could even launch 2 small sats at 1 time! Stable from take-off, orbital insertion and all the way back down to the space center. Fitted with airbrakes, a reaction wheel, batteries, and antenna. This design doesn't have the fuel capacity to meet up with a station and refuel for a longer mission, but I'm working on an interplanetary variant. I'll update when I have one. For now it's a cheap way to launch satellites capable of going all throughout the Kerbol system. Powered by 4 rapiers, it has a lot of power, up to 5g's of acceleration through Kerbin's atmosphere on the way to space. Here's a photo of it in orbit after having just released a satellite bound for the Duna system: This design for now is done. I'll be however working on another interplanetary design similar to this. any thoughts or suggestions appreciated PS: I'll update this thread with more pics and an interplanetary version perhaps, when I complete it. Safe flying!
  20. Design a SSTO that uses propellers or rotors instead of jets during atmospheric ascent I like useful challenges, and I hope this one may be considered as such. The goal, besides challenging oneself, is to create a new type of SSTO that can explore atmospheres with props or rotors, thereby saving fuel and enabling the exploration of oxygen-free bodies, like Duna. This would enable a craft to biome-hop for science or transport resources much more effectively than slow rovers and fuel-guzzling rocket planes/landers can in said atmospheres. While these kinds of biome-hopping and transport crafts do exist, they don't seem to exist in reusable SSTO form, it seems. Props and rotors, unlike jets and intakes, also have the benefit of not being dead weight on Duna. So while props may offer worse performance on Kerbin, they'll pay you back during Duna ascent. Or at least, that's the theory. Requirements: No airbreathing engines. The craft must be capable of flight using rotor/prop power alone in the destination planet’s atmosphere, but you can obviously use rockets to get to and fly in space. Self-sufficient SSTOs only. So, ISRU mining is allowed, but no assistance from external ships (asteroids are OK). You may not jettison any parts other than payloads that don’t help the main vessel in any way. Normal difficulty or harder, but for convenience, you may ignore commnet—pretend a network is already in place. The SSTO must be useful in career mode. There’s no point in a spacecraft if you can’t bring any Science, Kerbals, or payloads along. Carry at least one kerbal (chairs allowed), OR if you wish not to carry kerbals, carry at least 0.2 tons of parts from the “science” category, OR deliver a payload weighing at least 0.5 tons. You may drop payloads once you are landed at your destination. If your destination is Jool, you may drop it low Jool orbit or into the depths of Jool. Payloads must be attached/detached using docking ports, not decouplers. No mods or part tweaks other than official DLCs, FAR, aesthetic mods, and piloting or planning assists. Challenge Tiers: Tier 0: "Proof of Concept" (Normal): Build a prop/rotor SSTO that makes it to Kerbin orbit. Must be capable of takeoff/landing in Kerbin’s atmosphere on rotor/prop power alone. Example: Reddit user u/chargan’s Orbital Chopper Tier 1: "Practical Problems, Sober Solutions" (Hard): Fly your prop/rotor SSTO to Duna's surface and back. Must be capable of takeoff/landing in Duna’s atmosphere on rotor/prop power alone. The challenge is simple in concept, but hard in practice. But, if you manage to accomplish Duna, there are other destinations to try, where almost no SSTO crafts have ever gone before... Bonus Badges: Within each tier, entries can receive the following awards. Ordered roughly by importance in career mode. (ISRU comes last as you are strongly encouraged to use it.) V: Heaviest payload delivered IV: Greatest tourist capacity (No chairs - tourists can’t go on EVA) III: Cheapest craft II: Lightest craft (Wet mass, excluding payload mass) I: No ISRU (Multiple entries can earn this.) Leaderboard: Good luck! If you have any trouble completing the challenge, browse this thread or just ask for help—there are many posts here with tips and links and instructions.
  21. I would like to see some heat-resistant aerodynamic parts for the leading edges of shuttles and SSTOs, which tend to overheat. A shuttle nose cone and medium-sized elevons with a resistance of 2600K would be very useful.
  22. I'm designing a couple of SSTOs and I'm testing them with different fuel levels for re-entry, to see if they are stable, but it is a hard thing to test, I remember installing Ferram Aerospace Research and it had a cool assistant that displayed some useful aerodynamic coefficients. What I'm looking for is a similar mod but for the stock aero model, I did a couple of google searches but couldn't find much.
  23. So I've seen some mods with Spaceplanes such as the X-15, DreamChaser, IXV, GOGI, ISRO,Hermes, and X-24. But these are not modular like most ksp parts which kinda is not right since this game is a building game and most parts are modular so I decided to draw a concept for a modular spaceplane parts mod which fits in with the stock cross sections. The mod would also need custom landing gear as the stock ones don't really fit in as much.
  24. Hi there, I am trying to get a SSTO build working, however I can't figure out how it will accelerate enough to get to orbit. I followed @Matt Lowne build on the beautiful SSTO, however my build will never get fast enough. It stops around 300m/s. So I tried his craft file from the video and it is even worse. ;-) So now I am stuck on how to go on? Adding engines only gives small increments on the max speed and probably would need 10 more rapiers to hit ~400m/s. Is it something with the aerodynamics? Is there a way to analyse that? I put my craft on pastebin: https://pastebin.com/WDympGyR Playing on 1.10.1 with Tantares, Habtech2, KIS, Kerbal Engineer, Docking Port alignment indicator.
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