Search the Community

Showing results for tags 'spacex'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • General
    • Announcements
    • The Daily Kerbal
  • General KSP
    • KSP Discussion
    • Suggestions & Development Discussion
    • Challenges & Mission ideas
    • The Spacecraft Exchange
    • KSP Fan Works
  • Gameplay and Technical Support
    • Gameplay Questions and Tutorials
    • Technical Support (PC, unmodded installs)
    • Technical Support (PC, modded installs)
    • Technical Support (PlayStation 4, XBox One)
  • Add-ons
    • Add-on Discussions
    • Add-on Releases
    • Add-on Development
  • Community
    • Welcome Aboard
    • Science & Spaceflight
    • Kerbal Network
    • The Lounge
  • International
    • International
  • KerbalEDU Forums
    • KerbalEDU
    • KerbalEDU Website
  • KSP Pre-release
    • 1.2.9 Pre-release Branch
    • 1.2.9 Pre-release Modding Discussions
    • 1.2.9 Pre-release Bug Tracker

Categories

  • Developer Articles

Found 61 results

  1. Kerbalized SpaceX for KSP1.3(WIP) Do you love powered landings? I DO! So much in fact I decided to create this mod. I hope you guys enjoy! More to come. Download: Command Edition: Contains: Dragon1, DragonV2, ITS Titan, and a few other useful parts https://github.com/jharri74/Dragon2/releases/tag/1.08 Spacedock: https://spacedock.info/mod/1477/Kerbalized SpaceX Curse: https://kerbal.curseforge.com/projects/kerbalized-spacex/files Dependencies: Requires "near future solar" for the solar panels on the trunk to work. This mod is a WIP . I have almost completed the first stage, which is all the command modules and IVA's. I have yet to finish the ITS titans but expect to within the week. First Stage: Command modules, iVA'S, and support vehicles.- 90% complete Second Stage: Launch Vehicles: 5% complete 3rd stage: Deep Space!?!?!? Disclaimer: All rights reserved. 1.3 Compatible
  2. SpaceX Pack Includes: Falcon 1 Merlin 1Ci Kestrel Falcon 9 1.0 Merlin 1C Merlin 1C Vacuum Falcon 9 1.1 Merlin 1D Merlin 1D Vacuum Falcon 9 Full Thrust / 1.2 Merlin 1D+ Merlin 1D Vacuum+ Even more powerful Merlin's than the 1D+', SpaceX wants to increase thrust of those even more Different textures (Used, black legs & black octaweb, etc) Falcon Heavy Alternative colour sheme Interplanetary Transportation System (ITS) Raptor (surface, vacuum) Ship Booster Landing Zone 1 (LZ-1) Of Course I Still Love You (OCISLY) and Just Read The Instructions (JRTI) Various payload fairing textures from real missions ABS-3A/Eutelsat 115 West B America AsiaSat 6/Thaicom 7 CASSIOPE DSCOVR Orbcomm OG2 SES 8 Thaicom http://imgur.com/a/oPiFw Requires Firespitter (Plugin) (for the fairing texture switch) Recommended/supports: Texture Replacer , MechJeb2 , Trajectories , 64k (solar sytem rescale mod), , Launch Towers Pack KSP Version: 1.3 Version: 4.1 (Released Jan 12, 2016) Download: Spacedock Realism Overhaul configs for Falcon 9 "Full Thrust" are made by user @ReventonHawx and can be downloaded here Real Plume Configs are provided by @Hysterrics and can be found here Atlas Pack Includes: Atlas V Rocket 400 & 500 series (3 Payload fairings for each version) Centaur with RL-10 Payload interfaces (C13, C15, C22, C25, C29, A937S, B1194) http://imgur.com/a/3qlH3 Requires Old School Fairings , BD Animation Module Recommended Editor Extensions KSP Version 1.1.3 Version 2.0 (Released September 9 2016) Download SpaceDock Realism Overhaul configs are included in the RO mod Real Plume config provided by @Hysterrics , downloadable here License All rights reserved
  3. It appears the SpaceX thread has been merged with the blue origin and Orion thread (?!), so I thought I would take it upon myself to start a new SpaceX thread. Here it is... The NROL-76 launch is scheduled for the 30th of April, and the static test fire completed.
  4. Does anyone have tips on how to land 2 seperate boosters decoupled at the sametime in the lower atmosphere?
  5. Where does everyone think space flight is going, and who do you think is the future of space flight is gona be? Btw, feel free to comment more company's to add to the poll.
  6. In much the same spirit of @Bottle Rocketeer 500's rather-popular "Doing It Orion Style" challenge, I decided to put together a similar challenge featuring sequential missions, building up from the launch of the Falcon 1 through the present and beyond. But, since Elon also owns Tesla, some steps in the challenge will include building all-electric vehicles to match the Model X, the Model S, and the Model 3. To add variety to the challenge, I'm also going to include planned-but-never-flown configurations like Falcon 1e and Falcon 5. For each mission, I'll do my best to provide a set of mission requirements which are specific enough to make it interesting and challenging but not so specific as to make it arbitrary or time-consuming. Missions are optional; you can choose a single one, skip around, or do them all one by one in sequence. Possible missions (I won't do all these but it's a sampling of possibilities based on demand): Falcon 1 Falcon 1e Tesla Roadster Falcon 5 Falcon 5R Falcon Air Tesla Model S Falcon 9v1.0 Dragon 1 Falcon 9v1.0 Dragon 1 + comsat, engine-out Falcon 9v1.1 Cargo (polar, soft splashdown) Falcon 9v1.1 Cargo to KTO Falcon 9R Dragon (soft splashdown) Falcon 9R Cargo to Kerbin Escape (soft splashdown) Tesla Model X Dragon 2 launch abort test Falcon 9R Dragon (ASDS attempt) Falcon 9 FT Cargo (RTLS landing) Falcon 9 FT Cargo GTO (ASDS attempt) Falcon 9 FT Dragon (ASDS landing) Falcon 9 FT expendable (fairing recovery) Falcon 9 FT with X-47B Tesla Model 3 Falcon Heavy Demo Falcon 9 Block 5 with Dragon 2 Dragon 2 max-Q abort Falcon Heavy Constellation Falcon 9 Crew Falcon Heavy: Grey Dragon Falcon Heavy: Red Dragon If there's some interest, I'll get started on the requirements for the first few missions! General rules: Tweakscale is allowed Readout mods are allowed Piloting mods are not allowed Unbreakable Joints and No Crash Damage are allowed for propulsive landing attempts Part mods which alter tankage ratios or engine performance are not allowed No reaction control wheels are allowed You must use the same engine for all first stages, so plan accordingly. The engine you choose will start with low thrust and be uprated over time. Scoring is based on lowest LV dry mass. EDIT: Missions below!
  7. I am a stockalike mod player and I saw the reveal of the new Dragon V2 and wondered, "That would be cool to fly in KSP." Then LazarusLuan made one for LazTek and I saw how awesome it was. As much as I love it, I felt that it was lacking the stockalike feel to it since it's more of a replica. Well now I am making a mod that will include various stuff from SpaceX and other cool stuff that is stockalike. Video by @kaue4arp10 Video by @Kottabos Current parts Rodan command pod, heatshield, and trunk. It also has a nice IVA included. (Dragon V2) Staub control block, fuel tank, and OCS. (LADEE) Ghidorah 9 fuel tanks, second stage engine, first stage engine, legs, grid fins, and decoupler (Falcon 9) Gigan pod, heatshield, shroud, trunk, solar panel, solar shroud. (Cargo Dragon) Igel probe (Hedgehog probe) Paneer probe (New Horizons) Mothra probe (Rosetta) Pill probe (Philae) Planned features Roadmap Known issues None so far Required Mods Kerbal Reusability Expansion Recommended Mods RealPlume Stock Configs A special thanks to Beale for teaching me the basics of modding, Nertea for making the awesome curved solar panel plugin, and many of you awesome community members! Changelog: Enjoy the mod? If you want, feel free to leave a donation to buy me a coffee or something!
  8. Just wondering who you guys think will send humans to Mars first.
  9. Hi guys! I just wanted to share with you the new project I'm working on. It's a YouTube series called "The Story of Space Exploration". In this series I'll talk about and explain the most important missions in the story of Space, with some help of Kerbal Space Program. I made 2 trailers and just published the first episode, "How does a rocket work?". I'll put the links below just in case you're interested: Trailer 1 Trailer 2 How does a rocket work? The Story of Space Exploration ep 1 Please let me know what you think
  10. I'm happy to share with you the first public release of this mod. Most of the parts are done and ready to use and you can now properly replay the Mars colonization mission in KSP. IMPORTANT NOTICE: This mod is absolutely overpowered for the stock game. The engine performance and ship stats are as close to their real counterparts as I could make them, and as of now it works just fine in RSS with FAR and RealHeat installed. You don't need RO for this to work 'realistically' in terms of performance, except the fact that the fuel is not right (liquid fuel/oxidizer instead of liquid methane/oxygen) and engines don't suffer from ullage and other great features that RO brings. DeltaV stats, Isp, masses and all related parameters are nevertheless more or less correct. PARTS Crew Transport Ship with 4 crew and 100 passenger capacity. Tanker Ship for orbital refueling. Reusable Booster with attachable fins and gridfins. Built-in decoupler, probe core and antenna. Dedicated shielded side docking port. Matches stock senior docking port. Raptor engines for atmospheric and vacuum use. Ship landing legs Deployable Gridfins that act as control surfaces and airbrakes Booster fins Solar Panels, RCS etc. FEATURES Booster has a built-in decoupler for stage separation. Built-in docking ports can be activated in config files (as an alternative). Currently uses Liquid Fuel/Oxidizer mixture but with correct masses for the ship and booster Engine Isp and thrust are set to values given by Elon Musk in his presentation All sizes are as accurate as I could estimate Ship and booster masses are as specified by Elon Musk. Raptor engine mass is estimated based on Merlin mass Tested in KSP 1.2. Backwards compatibility for KSP 1.1.3 and some extra config files for RSS are available on GITHUB Landing legs are missing landing leg module. They are still animated and act as landing legs, and are by default activated by Gears action group. They cannot overstress. CURRENTLY IN DEVELOPMENT Internals IRSU module RSS/RO configuration for proper fuel usage - partly done Configuration for stock KSP that is not game-breaking Split body flaps for the ship VIDEOS! A quick video I made how to assemble the ship: Kottabos review: DOWNLOADS: SPACEDOCK CURSE GITHUB - Backwards compatibility and extra configs are available here. DEVELOPMENT THREAD is where all the important updates and future features, as well as current issues (there are some) are discussed. I hope you will enjoy this mod! It took me a long time to (sort of) finish and I wasn't even sure if I could do it. Because of that, I'm even more excited to share it with you! A big THANK YOU to Marcus House for the support and testing, as well as config adjustments!
  11. https://arstechnica.com/science/2017/07/spacex-appears-to-have-pulled-the-plug-on-its-red-dragon-plans/
  12. DISCONTINUED UNTIL FURTHER NOTICE! THIS MOD IS STILL A WORK IN PROGRESS AND NOT YET AT A POINT FOR RELEASE. PLEASE KEEP AN EYE OUT AS THIS MESSAGE WILL CHANGED TO RELEASED. THANKS. UPDATE: THIS WILL BE RELEASED AS AN ALPHA ONCE STAGE 1 IS COMPLETE. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ABOUT: From a small team just entering the modding world, we bring to you the SpaceX parts pack. This mod brings you all the parts required to produce your very own Falcon 9 series. Based off measurements and specific information provided on the SpaceX website along with some good guess work, these parts provide a 1:1 scale of the real Falcon 9 used by SpaceX. CONTENTS: This pack includes a variety of parts that can be used in combination to produce realistic looking Falcon 9 rockets. This pack will currently include the following: · Merlin Octaweb Engine · Merlin Octaweb Engine Mount · First Stage Fuel Tank · First Stage Control Module · Landing Legs · Grid Fins · First Stage Radial Decoupler · Interstage Decoupler · Merlin Vacuum Engine · Second Stage Fuel Tank · Second Stage Control Module · Dragon Decoupler · Dragon Trunk · Dragon Trunk Fins · Dragon Solar Panels · Dragon Heat Shield · Dragon Preassurised Pod · Farings More parts will be added as I progress through the models and assemblies. PROGRESS: As I have previously mentioned, I am new to the modding community and am developing this mod in partnership with a few friends. This pack will take some time to be released as I work a standard work day and have personal priorities. I am currently working on this pack with any time I have. I ask for your patience with this and I will keep this up to date. The progress so far: · Merlin Octaweb Engine o Modelling – 100% o Texturing – 0% o Coding – 50% · Merlin Octaweb Engine Mount o Modelling – 100% o Texturing – 100% o Coding – 95% · First Stage Fuel Tank o Modelling – 100% o Texturing – 0% o Coding – 50% · Landing Legs o Modelling – 100% o Texturing – 0% o Coding – 50% · Grid Fins o Modelling – 100% o Texturing – 0% o Coding – 50% · First Stage Radial Decoupler · Modelling – 0% · Texturing – 0% · Coding – 0% · Interstage Decoupler o Modelling – 0% o Texturing – 0% o Coding – 0% · Merlin Vacuum Engine o Modelling – 50% o Texturing – 0% o Coding – 0% · Second Stage Fuel Tank o Modelling – 0% o Texturing – 0% o Coding – 0% · Second Stage Control Module o Modelling – 0% o Texturing – 0% o Coding – 0% · Dragon Decoupler o Modelling – 0% o Texturing – 0% o Coding – 0% · Dragon Trunk o Modelling – 0% o Texturing – 0% o Coding – 0% · Dragon Trunk Fins o Modelling – 0% o Texturing – 0% o Coding – 0% · Dragon Solar Panels o Modelling – 65% o Texturing – 0% o Coding – 0% · Dragon Heat Shield o Modelling – 0% o Texturing – 0% o Coding – 0% · Dragon Preassurised Pod o Modelling – 50% o Texturing – 0% o Coding – 0% · Farings o Modelling – 0% o Texturing – 0% o Coding – 0% PICTURES: DOWNLOAD: This mod is still far from completion. Once completed this mod will be available to download off Spacedock. A link will be provided once released and this post will be updated. UPDATE: THIS WILL BE RELEASED AS AN ALPHA ONCE STAGE 1 IS COMPLETE. CREDITS: As I have previously mentioned, this is a shared project. Although all the modelling has been carried out by myself, this mod would not be possible without the correct configs and texturing. I would like to thank my friends Fordie, Spoonstiker and Mr Mental for their help with coding this mod and making it work.
  13. Elon Musk said that he will land first stage of the ITS back on the rocket holder (don't know what it is called) and that is what this challenge is. Show that it is POSSIBLE. Design a ITS-like rocket that can have the first stage land on the pad Level one: land the booster back at ksc. Score is 100times(Launch mass/distance to the pad)/dv used to land. Level two: land the booster back on the pad. Score will be Score will 20Launch mass/Dv used to land. Level three: land the booster back on the launch holder (Dock with the launch holder using engines). Score will be 30 times Launch mass divided by Dv used to land. Docking ports are recomended for the launch holder. Dv will be measured in m/s in a vacuum, distances in meters and launch mass in tonnes. Rules 1. No f12 menu, hyper edit, cheating, or exploiting glitches. 2. You can use the landing guidance in Mechjeb as an informational tool, but not the autopilot. 3. The only three part adding/changing mods allowed kerbal reusabitity expansion, any life support mod, and deep freeze. 4. Must have at least 100% re-entry heating, plasma blackout, kerbnet enabled, have it so the signal is required for control, and must have no partial control allowed. 5. Must have no kerbals on the booster. 6. FAR, FMRS, and deadly re-entry are allowed 7. NO PARACHUTES 8. NO DROPTANKS/ASPARAGUS. Must be Two stages. 9. Modded. Only mods that don't offer a signifigant advantages over stock are allowed. If it adds fuel tanks with a better full to empty mass ration than stock, it is not allowed. Prohibited; Procedural parts and near future propulsion. Obviously, no using the ITS mod (It is WAY overpowerd). Tweakscale can be used if it is not abused. Bonus points Second stage goes into orbit +1 Second stage lands back at kcs +1 Second stage lands on launch pad +2 Booster can refuel +.1 Multiply final scor by ten Documentation Have informational tabs and Dv stats open (Mechjeb, not KER for dv) Keeping the landing guidance tab open with the information tab is highly recomended Video is great. If you take pictures, use an imgur album; when to take pictures; Pre launch (on the pad). Gravity turn. Stage seperation. EVERY BURN. Re-entry Take plenty of pictures in during landing for level three and two. Refeuling (If done). Leaderboard; Stock; Modded; My exemple entry on level one. Score=1000*266.924t/75.2m/1995m/s+1=1.178
  14. Note: these are two separate launches, because FMRS doesn't want to work for me, and the videos are very quiet for some unknown reason (not because QuickMute). Payload's view Booster's view and "landing"
  15. THIS MOD HAS BEEN RELEASED! CHECK OUT THE RELEASE THREAD HERE SpaceX Interplanetary Transportation System! With realistic sized parts (aka massive), accurate mass (launchpad might explode occasionally) and other stats as close to SpaceX presentation as I could get. Now you can colonize Mars SpaceX style. Intended use for this mod is going to be RSS/RO, because it is obviously overpowered for stock Kerbol system. It took me a lot of time to model these parts and even longer to make them work properly, so I hope you will enjoy and provide feedback, because it is very much needed! DISCLAIMER: This mod is absolutely overpowered for the stock game. The engine performance and ship stats are as close to their real counterparts as I could make them, and as of now it works just fine in RSS with FAR and RealHeat installed. You don't need RO for this to work 'realistically' in terms of performance, except the fact that the fuel is not right (liquid fuel/oxidizer instead of liquid methane/oxygen) and engines don't suffer from ullage and other great features that RO brings. DeltaV stats, Isp, masses and all related parameters are nevertheless more or less correct. Currently in development Internals RSS/RO configuration for proper fuel usage - partly done, files on Github ISRU Backwards compatibility for 1.1.3 (for RSS and RO) - compatibility done. Config files for stock KSP Proper configuration for the landing legs Engine heating animation (I totally forgot about them) Split body flaps for the ship Imgur Album - more pictures. Downloads: Spacedock Curse Github - extra configs for RealPlume and SmokeScreen, also WIP configs for RealFuels LICENSE: All rights reserved. If you want to use models or textures from this mod, just ask. It's the second mod ever and therefore there are many, many sharp edges and strange solutions. Some parts might summon Kraken, so be warned. This endeavour turned out to be far bigger than I ever expected and I have certainly underestimated the complexity of such operation. Development will be slow because I have learn things on the fly, but if you would like to help with the development, please contact me. In any case, I hope you'll enjoy the mod and please share some screenshots!
  16. I recently had another series, 2mF, developing a KOS script to automatically fly, return and land boosters in KSP. I decided to try that again, this time with less "empirically determined values" and with explaining my code. This should make the script fit to multiple different missions, not just this one specific rocket. I hope to be able to demonstrate New Shepard, Falcon 9 and Falcon Heavy like missions. This also is an editing-learning-experience for me. So I hope the audio quality on the next video will be better, I am trying! I want this to be a community-thing, so I am looking forward to your feedback, improvement suggestions and criticism! Links YouTube channel Forum Thread GitHub Repo Modlist CameraTools for recording DistantObjectEnhancement little dots for planets and ships PlanetShine planet illuminating the vessel Scatterer better atmosphere and water kOS programming rockets Other Info Text Editor Atom Syntax Theme Solarized Dark KSP Version 1.2.2 Video Editing Software Adobe Premiere Pro Microphone Blue Snowball Hans Episode #1: Automated Booster landing development tutorial using a KOS Autopilot script. Inaugural episode: Dumb suicide burn with a simple hop. I promise the audio will be better next time! Also go to the YouTube video, to like and subscribe!
  17. In honor of SpaceX winning the launch contract for the next X-37B mission (planned launch date NET August 2017), I decided to throw together a mockup of what the whole mission might look like. This was the first time I'd ever built a proper spaceplane. The only mod used was Tweakscale, because I couldn't very well get the proportions right without that. The booster does a RTLS landing; the X-37B does a once-around and re-enters. No RCS for attitude control on the orbiter. I saved in orbit before payload separation and I am considering going back and doing a Mun mission with the orbiter.
  18. For clarification this would be Kerbin Orbiter's space program however that save is corrupted and well I've done two saves on that one so this is the third save ive added a few mods, removed some aswell, most notably RT because KOS refuses to do anything with RT installed even with a connection BREAKING PRESS RELEASE! so are you planning to go to Duna? KSEA-"yes we are we plan to go to Duna by the end of the decade" will you be using falcon heavy? KSEA-"no we won't we will be unavailing the rocket in around 10 days all I can tell you is it's HUGE" woule you take it to the Mun and/or Minmus? KSEA-"we will take it to the Mun but not Minmus because Minmus doesn't have the gravity" info: Currently the KSEA is working towards a recoverable rocket (this is the time i show you my code) Launch vehicles how to get involved Scheduled launches: Mission: Kerbinorbiter sat One objectives: Launch the satilite into orbit Secondary objective: Safe splashdown in the ocean Updates: we are now constructing a space station, i will also put the save file for downlaod every fortnight (two weeks) mod list incase you want to create a module for me video versions (release one soon!) https://github.com/Kerbinorbiter/KSS-expeditionary-missions/releases
  19. I made a SpaceX's Falcon 9 launch simulation with the deployment of a dummy satellite and the recovery of the first stage on the drone ship. I always love seeing the lives launches from SpaceX and I just wanted to do it in KSP so we can see it from a better angle. I used some mods like : - SpaceX Launch Vehicles crafts - Environmental Visual Enhancements - Distant Object Enhancement - Stock Visual Enhancements - PlanetShine - Camera Tools - MechJeb
  20. Hello people of Ksp! I've been think about spacex lately, after there acheivment of landing used boosters, as well as re-using them. Do you think that spacex will make it to Mars by the time they want to? Why or why not?
  21. One of the things Elon Musk said in his September 2016 speech about the ITS was that the cost of getting to Mars is essentially infinite right now. In his powerpoint, he put it at $10 billion per person. Now, the logistics of the ITS aside, I wonder how accurate this is. How much WOULD it cost to get humans on Mars? What are the different cost breakdowns of different approaches, and which mission configuration would be best? And, most importantly, what happens if we Kerbal it? The challenge is to send a few Kerbals to Duna, using only currently-available propulsion methods, with enough supplies to live on for the trip, as cheaply as possible. Rules: Propulsion. No nukes and no airbreathers. SABRE isn't up and running, and NTR isn't likely any time soon, so your propulsion needs to be chemical only. No ion engines; we need to assume you're running against some kind of a deadline. ISRU. Nope, sorry. We can't wait around on Duna forever. Payload. Send up to 12 Kerbals to the surface of Duna and bring them back to Kerbin. But they need consumables, right? Let's be very Spartan and say that they each need a total of 0.2 tonnes of food and other consumables for each leg of the trip. You can pack that extra payload any way you want; that's approximately two Science Jrs per Kerbal, and you can ditch up to half of them (they're empty, after all) before you enter Duna's SOI. Prop transfer. This is not only permitted, but encouraged. I highly recommend it. Reuse. Recovery of components is encouraged by a cost reduction as outlined below. Scoring. Your total score is the total mission cost divided by the number of Kerbals you actually land on Duna and return safely. Kerbals which stay in Duna orbit do not count, and dead Kerbals do not count. Any recovered components (reusable launch vehicles, etc.) are counted at 30% of their full cost. You do not have to include the cost of whatever you use for dry mass payload for consumables. The winner is whoever has the lowest score. Mods. No part mods and nothing that would affect scoring, but anything else is fine. I only have the Demo, or I'd make my attempt, but obviously this can be done. I'm mostly interested in seeing HOW it is done, what mission architectures are used, and so forth. Good luck!
  22. What do you think, guys(from Squad too), about add Grid Fins for more realistic stock reusable (mostly) rockets and Super Heavy Landing Legs for Heavier Landers?
  23. 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.
  24. Wow, Elon Musk wants to go to Mars! Wow, he made a rocket plan that can go there! The ITS. Oh boy. Where do I start. Elon Musk is a pretty genius buisnessman. But he's not a scientist, or engineer. Neither am I. And for SpaceX, that's been a pretty good thing. The Falcon 9's relative simplicity and lack of (yes, it's not innovative- everything on the rocket has been done before, fight me) innovation has cut costs to unprecedented levels. The ITS I've been wanting to make this thread for a while. But now that SpaceX fanboyism has probably cooled down, maybe people will actually listen to my concerns. There are 2 big problems that automatically stick out when I see this rocket. 1. NO ABORT SYSTEM Yes, it has a 2nd stage that 'can' be used as an abort stage, but that's a horrible idea. The 2nd stage is the stage that has to do the MOST IMPORTANT burns in the mission. The ones for landing, for example, that can't be aborted. It has to fire multiple times and do course adjustments. It's already under massive stress from constant re-firing. Worse, it's vulnerable ITSELF to failure. Remember that one time when the Helium tank in the 2nd stage blew? Thus, if the 2nd stage fails, you're screwed. No one else uses the 2nd stage for an abort system, because the entire point of an abort system is to be separate from the rest of the rocket system. There's also the fact that it may not have enough thrust in a pad explosion to get out quickly. 2. Too tall for landing. It's height-to-width ratio is comparable to the F9 1st stage (WHEN THE LEGS ARE SPREAD OUT), more than anything else that lands today. That is fine for an unmanned system, worse case scenario, you're going to lose a stage. But something that's fairly unstable in design is not a good idea when landing with humans on another body. Even Mars One uses landers that have a height-to-width ratio similar to Soyuz. NASA's Altair and DRM Mars are much wider when their legs are spread than they are tall- meaning they have a natural stability. Also, the ITS is top-heavy on that final Mars landing- its propellant tanks are empty 3. (BONUS !(lol)) The Heat Shield As we all know, this is a major issue. Sure, the Shuttle survived 4 times when it reentered from Earth's atmosphere when it's shield was holed up- but it failed that one time. It was a pretty unlucky hit, that foam strike. And you're going to be in deep space for at least 12 months, minimum. A strike of some sorts is an inevitability... And that shield needs to be used 3 times during a mission- none of which can be aborted. You could fix this with a covering, but that one covers the first 6 months TO Mars. What about the final aerobrake to Earth? It's more dangerous than anything else, since Earth's atmosphere is so much more dense, and it's coming it at MUCH faster speeds than Columbia in 2003. A hole that might have not been a big issue for the Shuttle could become a major failure point for the ITS on that essential final brake. And no, the ITS probably does not have the fuel to propulsively enter Earth Orbit. I'm not sure how much the aerobraking in Mars lowers the landing Delta-V, but I can safely assume the amount needed is MUCH lower than that needed to Enter Earth Orbit. And the engines probably aren't good heat shields at these sorts of speeds. Their cone shapes concentrate plasma at their tops. The dust storms probably aren't a big deal though, thankfully, due to the dust's low energy. And that doesn't account for the fact it's carrying 100 PEOPLE. If a mars Landing fails, and all the crew die, compared to the 7-man Shuttle disasters, that's a SPACE GENOCIDE. The Public would lose trust in commerical space, and Congress would probably nationalize all US Space operations. All of Elon Musk's work to build SpaceX is now in vain. Not only that, anyone trying to do the same is now MASSIVELY HAMPERED. Every time one proposes a commercial Mars landing, people will turn to the ITS disaster, in the same way people turn to Hindenburg with Airships. Thus, everyone loses. Let's remember the story of the Turtle and the Hare here. We aren't going to win by simply 'jump-stepping' to Mars. It's not the year 1700. People send people to space with the full expectation they will return. If they don't... well. Look at the history of NASA's plans being demolished by Challenger, Columbia, and Apollo 1. For the record, the Shuttle was supposed to fly until 2030 until Columbia.