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Thread: The K Prize - 100% reusable spaceplane to orbit and back

  1. #1

    The K Prize - 100% reusable spaceplane to orbit and back

    The K-Prize Party Thread.


    K-Prize badge by WafflesToo (sig badges).


    The K Prize challenge is to make the obvious craft, a spaceplane, and make it work. All those who succeed will be included on the roll of honour and get a free back stage pass to hang with Kay Kool and the Kerbettes after their next live performance at the Dog and Booster (where free beer will be available).

    Rules
    1. The craft may not lose any parts in flight, no decoupling allowed.
    2. The craft must lift off horizontally, reach orbit (PE > 70,000m) and land intact ready for 'refuelling'.
    3. All fuel tanks, wings (ie lift generators & aerodynamic environments) and engine parts must be stock, for fairness.

    Provisos to rule 1.
    A. Payloads may decouple from the craft providing all payload tanks are as full on decoupling as at launch and any thrust (or lift) generators on the payload were not used prior to decoupling.
    B. Docking is permitted providing no fuel is transferred (net per fuel type) into the K-Prize craft (it can be transferred out). Crew transfers are permitted.


    Kudos
    1. Smallest ship (by weight, weight info required). Minimalist record.
    2. Largest ship (by weight, weight info required). Maximalist record.
    3. Highest orbit beyond Eeloo. Altitudinalist record.
    4. Landing on KSC terrain. Pilot proficiency medal.
    5. Landing on any KSC runway or docking in orbit. Advanced pilot precision award (1stClass for both).
    6. Visiting other SOIs. Kosmokerbal Commendation.
    7. Planetoid landings. Astrokerbal Distinction.
    8. Payload to orbit. Utilitarial Commendation.
    9. Payload to distant planet surface. Utilitarial Distinction.
    Prefixes: Exploratory applies to planetoid missions and Expeditionary applies to planetary lander missions outside Kerbin's sphere of influence. (Planets are defined as the central body in their own SOI within Kerbols SOI or gravity exceeding 0.75 of Kerbins.)


    Guest List
    (Roll of Honour.)


    Version 0.90

    ChaoticPheonix Advanced Pilot Precision Award with Atlas SSTO.
    Kokanee Advanced Pilot Precision Award with Perigree.
    - Utilitarial Commendation, Pilot Proficiency Medal with Ascension.
    YellowApple Utilitarial Commendation, Advanced Pilot Precision Award with Hummingbird.
    Starhawk Advanced Pilot Precision Award with Sparrow Mk2.
    - Astrokerbal Distinction (Mün), Advanced Pilot Precision Award 1st Class with Spacehawk Mk2.
    hoioh Utilitarial Commendation, Advanced Pilot Precision Award with Triple Swallow.
    Batz_10K Advanced Pilot Precision Award with Turbo Finch LTSP R.
    - Advanced Pilot Precision Award with KA-1 Suicide Sled.
    Signo Advanced Pilot Precision Award with Sunbeam 090.
    Jonboy Kosmokerbal Commendation (Minmus) with MX-1.
    carlpilot with Mercury A.
    GeneralMDBK Advanced Pilot Precision Award with Ant.
    Agifem Advanced Pilot Precision Award with SpacePlane Mk1.
    CaptainVlad Utilitarial Commendation, Advanced Pilot Precision Award with RO-1 Torpedo.
    antihifi Utilitarial Commendation, Advanced Pilot Precision Award with Shuttle MK V HV.
    GeorgeG Advanced Pilot Precision Award with Microjet 1.2. (Craft designs downloads.)
    - Advanced Pilot Precision Award 1st Class with Microjet RCS-dock.
    - Advanced Pilot Precision Award 1st Class with Microjet Dock 3.
    - Utilitarial Commendation, Advanced Pilot Precision Award 1st Class with Corvette R6 Payload.
    - Utilitarial Distinction (Minmus) & Commendation x4 (+Mün), Advanced Pilot Precision Award with Buh Hee Moth (current maximalist record holder at 226.407t).
    - Advanced Pilot Precision Award with Microjet 2.0.
    - Expeditionary Utilitarial Distinction (Duna), Kosmokerbal Commendation (Ike), Advanced Pilot Precision Award with SSTO Space Plane.
    - Utilitarial Commendation x5 (Eve), Advanced Pilot Precision Award with SSTO Space Plane.
    - Advanced Pilot Precision Award 1st Class with Cargo SSTO.
    - Utilitarial Commendation (39t), Advanced Pilot Precision Award 1st Class with Cargo SSTO.
    ManlyPotatoe with Space Potato.
    norup Utilitarial Commendation, Advanced Pilot Precision Award 1st Class with MK3 Skylon SSTO.
    Merandix Utilitarial Commendation, Advanced Pilot Precision Award with ME-HSP1 Svadilvari.
    Starwhip Utilitarial Commendation & Distinction (Minmus), Advanced Pilot Precision Award with Starstreaker III.
    Cupcake... Astrokerbal Distinction x2(Mün & Minmus), Advanced Pilot Precision Award with Sprite (videos).
    - Expeditionary Astrokerbal Distinction (Duna), Advanced Pilot Precision Award with Sprite (video).
    Valcab33 Utilitarial Commendation, Advanced Pilot Precision Award with Pegasus I.
    TrypChangeling with Fox Space-Triplane.
    Monsterlunch Advanced Pilot Precision Award 1st Class with Galadrian I.
    Sean Mirrsen Advanced Pilot Precision Award with Stratogale Mk2.
    - Utilitarial Commendation, Advanced Pilot Precision Award with Stratogale Mk2.
    Right with Sprucer Goose.
    Foxster Pilot Proficiency Medal with Bag o Bits.
    - Pilot Proficiency Medal with Bag o Spanners.
    - Advanced Pilot Precision Award with Sippy Cup.
    - Advanced Pilot Precision Award with more tweaking.
    astrobond Advanced Pilot Precision Award with MicroSSTO.
    - Utilitarial Commendation (32.2t), Advanced Pilot Precision Award with New Mk3 Shuttle Eloo Biomes Catcher.
    bdito Advanced Pilot Precision Award with twin rapier delta design.
    Mesklin Advanced Pilot Precision Award with Brynhildr (current minimalist record holder at 1.708t).
    raygundan Utilitarial Commendation (36t) and the Advanced Pilot Precision Award with Cormorant.
    - Expeditionary Astrokerbal Distinction (Laythe), Exploratory (Duna, Pol, Bop) Kosmokerbal Commendation (Minmus), Advanced Pilot Precision Award with Loon.
    kahlzun Advanced Pilot Precision Award with starscream mk2.
    WhiteKnuckle Advanced Pilot Precision Award with Nomad SXI (VTOL).
    Death Engineering Advanced Pilot Precision Award with Just a Space Pane.
    drewscriver Expeditionary Astrokerbal Distinction, Expeditionary Utilitarial Commendation (Duna) Advanced Pilot Precision Award with Alaflux.
    RAINCRAFTER with Ty Fighter.
    panzer1b Expeditionary Astrokerbal Distinction (Laythe), with Tri-Fighter III (special honorific - best starbuck lookalike v0.9).
    Kelderek Utilitarial Commendation, Advanced Pilot Precision Award with Mk2Dromedary.
    manni01 Expeditionary Utilitarial Distinction (Laythe 15t) with LC Cruiser III 'Eagle'.
    Styles2304 Advanced Pilot Precision Award with modified SR-71.
    Reistlyn Expeditionary Astrokerbal Distinction (Laythe) with Pernach.
    - Astrokerbal Distinction (Mün) with Pernach.
    Samniss Arandeen Advanced Pilot Precision Award 1st Class with Mockingjay.
    ExplorerKlatt Utilitarial Commendation, Advanced Pilot Precision Award with Hyperion.
    Camaron Utilitarial Commendation, Advanced Pilot Precision Award with Terranova V.
    boolybooly Advanced Pilot Precision Award 1st Class with Fuelplane.
    - Advanced Pilot Precision Award with Tiny.
    - Utilitarial Commendation, Advanced Pilot Precision Award 1st Class with Lofter III.
    sumrex with Jabby.
    Deutherius Advanced Pilot Precision Award 1stClass, Kosmokerbal Commendation (Minmus) and Utilitarial Commendation x2 (Minmus, KTO) with Garrad Mk1-C.
    Pamynx Advanced Pilot Precision Award 1stClass with Icarus.
    Thrain Utilitarial Commendation, Advanced Pilot Precision Award with X-Wing.
    Speeding Mullet Astrokerbal Distinction (Minmus & Mun), Utilitarial Commendation (Minmus), Advanced Pilot Precision Award with Dinklestein.
    Joshwoo69 with Woot.
    mdkendall Advanced Pilot Precision Award with Golf II Orbiter.
    WolfHealr Advanced Pilot Precision Award with Kultralight.
    JackDraak Advanced Pilot Precision Award with Firebird.
    rose4100 with Blackbird.
    sumrex Advanced Pilot Precision Award with Jabby.
    Redhaze Utilitarial Commendation, Advanced Pilot Precision Award with Iolani 1A.
    - Utilitarial Commendation, Pilot Proficiency Medal with Iolani 1A/B.
    Fenya Expeditionary Utilitarial Distinction (Duna), Advanced Pilot Precision Award with Cargo Plane 17B (M2).
    Ceq Lysander Utilitarial Commendation, Advanced Pilot Precision Award with The Lead Balloon Project.
    Prillmeister Utilitarial Commendation, Advanced Pilot Precision Award 1st Class with Seagull (video).
    Invisifly2 with Speedy Space Skipper MkIII.
    g00bd0g Utilitarial Commendation, 2x Advanced Pilot Precision Award & 1st Class (x2 launches) with Snoopy.
    hazard-ish Exploratory Astrokerbal Distinction (Tekto, mod moon of Jool), Advanced Pilot Precision Award with Dart 2.5.2 (video).
    TrainEngie Advanced Pilot Precision Award with RAMSES 1.
    Randazzo Advanced Pilot Precision Award 1stClass with Kestrel.
    ghostbuzzer7 Advanced Pilot Precision Award with K-Prize SSTO.
    Maelstrom Vortex Kosmokerbal Commendation (Mün), Advanced Pilot Precision Award with The Dart.
    Torquimedes Advanced Pilot Precision Award with Kython K-wing.
    Roflcopterkklol Kosmokerbal Commendation (Mün), Advanced Pilot Precision Award with White Lightning Mk5.
    FlipNascar multiple x Utilitarial Commendation, Advanced Pilot Precision Award, station building with Fat Boy.


    [Spoiler: Guest List for K-Prize Party version 0.25]


    Guest Lists from previous versions.



    Gate Crashers
    (Dodged the bouncers.)


    K-Prize Gatecrasher's badge by WafflesToo (sig badges).


    Hooligan Labs, acquitted on all charges...
    Maxed Rockets, didnt want to come back anyway.
    evilC, denied accusations of short measures saying "I found it like that."
    Climberfx parts did not conform with KU common market standards policy.
    pinolallo, confessed to using experimental technology. Quoted in Kerbin Gazette, "gate crashing is kind of a hobby for me, my FatBob modified lifter for example." Presented "Theory of STOL Craft Design" to the press, available at all good book stores. Publicised secret crew shuttle test flight.
    cpt_nosh accidental fuel pump activation was accident.
    Kappa73, on returning from Laythe told reporters that mid-flight ship disintegration is perfectly normal, nothing to worry about. Complained about Kerman Bros plumbing.
    Psycho529 prefers the Mun to Kerbin anyway.
    Lazer Cut landed on the wrong planet, claimed it was deliberate.
    Rosarium blamed saboteurs.
    PotatoOverdose made no secret of refuelling on Laythe... many times over.
    japa what goes up doesnt always come down.
    Cupcake opined that gentlemen prefer VTOL, supplied some most funkadelic demonstration videos.
    Auriga exploring the universe in a Spaceballs Camper Van (video).
    ihtoit inadvertantly supercharged nuclear engine, landing strip no longer needs lights. (video)
    - claimed "the force made me do it!" (Xwing video) (TIE fighter).
    Technical Ben told all who would listen "Kraken is more than a mere rocket!" supplied promotional video at no extra charge!
    VincentS having some technical difficulties with the "not crashing" bit. Claimed losing a fuel tank on Duna was no accident.
    WafflesToo blatantly attempted to distract the K-Prize judges with a one act play (and video).
    Spartwo admitted creative interpretation of altimeter readings. Made persistent attempts to distract the bouncers.
    Cinocal likes to swing baby yeah (wings that is) !
    - felt that altering Kerbin's atmosphere was a price worth paying.
    zekes insisted that shuttles are spaceships too.
    Rhomphaia took the view that any landing Jebediah could walk away from was a good landing.
    El wonso quoted in Kerbin Gazette "In fact you can change the laws of physics."
    British_Rover said distributed landing technique was experimental.
    RTK admitted enjoying rulebreaking.
    Dr.Moo provided easy listening video evidence at the hearing.
    Taki117 took the view that using uncertified parts was fun.
    SeventhArchitect felt modifying certified parts was perfectly safe, not bodged at all.
    SeanMirrsen denied possessing a 2025 Sports Almanac. Refused to divulge lotto numbers.
    At the inquest it emerged that RocketScientistV's pilot kicked the solar panel "because it looked fragile", which it was.
    Sputnik's Revenge blatantly declined to add wings.
    TechniCali felt uncertified air intakes looked much cooler and represented no risk to anyone not on board the craft at lift off.
    Damaske confessed to using illegal refuelling technology.
    WafflesToo attempted to convince the panel that unidentifiable explosions are a good sign.
    Gravaar was on record saying that one day all space planes will be made this way.
    Fengist refused to confirm or deny whether allegations of prevarication were misinformation.
    Kokanee quoted in the Kerbin Gazette "I have seen the future and it looks like Firemoth".
    numerobis reflected that VTOLs dont need to crash the gates, they can just hop over them.
    GoSlash27 was adamant that that having cake and eating it was entirely possible according to quantum physics.
    Rakaydos suggested the Kerbal cosmos was a 3 dimensional brane moving in a higher dimensional space and there is no cake.
    RocketPilot573 told the commission "it was always intended to be an open ended mission".
    DMSP apologised for a lack of parachutes but felt that the craft had made a special contribution to Kerbin's reef ecology.
    SkyRex94 philosophised that were the universe a simulation one could adjust the cosmological constant to increase the availablility of sprinkles.
    Captain Vlad advised the committee that the exploding bits weren't really part of the spaceship at all... any more...
    Starwhip objected that colliding with the launchpad was unavoidable given the trajectory of the craft.
    Camaron asserted that the borrowed fuel was nether here nor there after the engines blew up, more kind of everywhere.
    ExplorerKlatt, found the missing wing tip while looking for lost golf balls.
    fenya interviewed by Breakfast TV was upbeat saying the craft came tantalisingly close to not crashing on several occasions.
    Sumguy told judges the detachable wing tip came at no extra charge, offered favourable credit arrangement.
    Ar180shooter crashing was due to technical issue with failing to not hit the ground.
    Gravaar declared the mission partly successful, since some parts had landed successfully

    ... can you do better :p
    Last edited by boolybooly; 27th April 2015 at 09:17.

  2. #2

    Re: The K Prize - 100% reusable spaceplane to orbit and back

    Craft files would be nice by the end of this challenge. Making space planes is hard! making SSTO space plane is extra hard.
    Can\'t wait to see what people come up with...

    One question. Vertical launches are perfectly ok right?
    -CEO and founder of Victor Aerospace Industries-

  3. #3
    Friendly Neighborhood Mod sal_vager's Avatar
    Join Date
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    Re: The K Prize - 100% reusable spaceplane to orbit and back

    Woot! I have an SSTO spaceplane in orbit at 230km, I\'ll land at the KSC and upload the pics, watch this post!

    Update: Aircraft failed to return to Kerbin, the weight distribution was such that the engine flew through the airframe and the craft disintegrated, I have another more stable plane but I need to get out in this sun, it\'s been cold for so long here.

  4. #4

    Re: The K Prize - 100% reusable spaceplane to orbit and back

    Edit : adapting the post to carry honour rolls from the previous versions.

    [Spoiler: Guest List for K-Prize Party version 0.24]

    [Spoiler: Guest List for K-Prize Party version 0.23]

    [Spoiler: Guest List for K-Prize Party version 0.22]

    [Spoiler: Guest List for K-Prize Party version 0.21]

    Link to guest lists for versions 0.16 - 0.20.

    Gate Crashers (early days)
    (Dodged the bouncers.)

    Stevenator1, borrowed someone else's spaceship...
    sss, the public inquiry blamed a computer malfunction...
    keptin, wings fell off...
    dogon11, denies ever using black market engines...
    Baneblade, engines dropped off at an inconvenient moment...
    Phoenix Aerospace, confessed to using counterfeit rockets...
    Shazi, advertising situations vacant in 'KSP Piloting News' jobs section...
    Suzaku, still refusing to pay airport tax...
    a7i20ci7y, insists that using uncertified boosters is perfectly safe...

    Previous post content...

    I'm a watchin' sal_vager, I'm a watchin'.

    Quote Originally Posted by hebdomad View Post


    Craft files would be nice by the end of this challenge. Making space planes is hard! making SSTO space plane is extra hard.
    Can't wait to see what people come up with...

    One question. Vertical launches are perfectly ok right?
    I welcome your enthusiasm hebdomad. Did you see rule #2?

    Rule #2, the launch has to be horizontal by which I mean has to happen on the runway and begin with horizontal movement, after which you can fly it any way you want. 8)
    Last edited by boolybooly; 4th February 2015 at 10:38.

  5. #5

    Re: The K Prize - 100% reusable spaceplane to orbit and back

    Damn... well there goes my one and only SSTO that might have parts 'accidently' fall off...
    -CEO and founder of Victor Aerospace Industries-

  6. #6

    Re: The K Prize - 100% reusable spaceplane to orbit and back

    Made this over the weekend,

    The Wespe:

    [spoiler]
    [/spoiler]

    Gets to at least 70km, all one piece, 2 stages, enough RCS fuel for orbital maneuvering, and enough jet fuel to do a controlled landing. All 0.15 vanilla parts.
    Attached Files Attached Files

  7. #7
    Unofficial official UmbralRaptor's Avatar
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    Re: The K Prize - 100% reusable spaceplane to orbit and back

    Looks like my glorified rocket approach is... iffy.
    [spoiler][/spoiler]
    [spoiler][/spoiler]
    [spoiler][/spoiler]

    It needs the drop at the end of the runway to get airborne, is barely capable of a 70 km orbit, and has a L/D of ~2 with empty tanks and below ~2 km altitude. It cannot safely ditch on water. Land capability is currently unknown. =/
    Basics of orbital mechanics | Maltesh's orbital parameters | Maltesh's celestial parameters | To do: add analytic solutions here.

    Quote Originally Posted by ferram4 on NEAR
    The benevolent answer is that people constantly say "I want something better than stock, but easier than FAR" and so I gave them an extra data point. The malevolent answer is that I gave people exactly what they asked for, and it still has the same difficulty bump as FAR. The interesting answer is that it's a social experiment to see how people react to something that is harder, but that they think is easier.

  8. #8

    Re: The K Prize - 100% reusable spaceplane to orbit and back

    When the rocket fuel tanks finally get separated from jet fuel ones (0.16 i think), I\'m sure this challenge would be much more challenging. The Rocket fuel tanks simply carry so much more for their weight.

  9. #9
    Spacecraft Engineer
    Join Date
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    Re: The K Prize - 100% reusable spaceplane to orbit and back

    Heh, looks like I need to step up my spaceplane game. The one spaceplane I\'ve gotten into orbit ran out of fuel doing so, partially due to mis-routed fuel lines, and ditched a pair of lower-atmosphere engines, an SRB, and the landing gear (attached to the engines and SRB) on the way up. (The pod decouples and lands via parachute. I\'m not that mean.)

    First, though, I need to build something that can rendezvous with my stranded spaceplane and nudge it back into the atmosphere.

  10. #10
    Spacecraft Engineer
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    Re: The K Prize - 100% reusable spaceplane to orbit and back

    Quote Originally Posted by Salda007 View Post
    Heh, looks like I need to step up my spaceplane game. The one spaceplane I\'ve gotten into orbit ran out of fuel doing so, partially due to mis-routed fuel lines, and ditched a pair of lower-atmosphere engines, an SRB, and the landing gear (attached to the engines and SRB) on the way up. (The pod decouples and lands via parachute. I\'m not that mean.)

    First, though, I need to build something that can rendezvous with my stranded spaceplane and nudge it back into the atmosphere.
    You have no idea how much I have tried to do that. Try and try, space is huge. I still haven\'t had a plane or ship that can do that.

    Quote Originally Posted by zombiphylax View Post
    Made this over the weekend,

    The Wespe:

    [spoiler]
    [/spoiler]

    Gets to at least 70km, all one piece, 2 stages, enough RCS fuel for orbital maneuvering, and enough jet fuel to do a controlled landing. All 0.15 vanilla parts.
    Tested your design out, I really like it Worked fantastically, got a stable 150km orbit, and brought it back down on the pad

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