400 Ton SSTO
by Kronus_Aerospace
uploaded 2017-10-29
stock spaceplane
#SSTO #Cargo #Lifter


A stock aircraft called 400 Ton SSTO. Built with 303 of the finest parts, its root part is fairingSize3.

Built in the SPH in KSP version 1.3.0.


  • Type: SPH
  • Class: spaceplane
  • Part Count: 303
  • Pure Stock

-Basic Description

A large cargo SSTO that is capable of delivering a 400 ton payload into LKO. This basically a smaller and dinky-er version of my 600 Ton SSTO; it was built for a very specific payload, which I may or may not end up posting later on. I personally think that this craft has the best asthetics out of all my multi-hundred ton SSTOs, and I think it’s actually quite adorable.

-How to Fly

Without activating brakes, activate the engines and allow the craft to accellerate down the runway. After the craft flyings off the end of the runway, try to maintain a steady altitude until it reaches 300 m/s, at which point pitch to 5 degrees and allow the craft to fly on it’s own. Once you reach 25 kilometers switch the R.A.P.I.E.R.s to closed cycle mode and continue from there.

-Current/Development Issues

1: During the design phase the craft seemed to suffer heavily from phantom forces that would cause the craft to turn left with violent intensity, even when held by launch clamps. I’m still not entirely certain as to what the cause of this was, however after disabling some of the autostrutting, adding more parts, and changing the gear layout, this issue dissapeared.
2:During the testing phase I realised the craft had way to much liquid fuel, so the 4 long liquid fuel fuselages that compose about a third of the total length of the fuselage are actually completely empty. This means the craft could easily be optimized to have a larger payload capacity. However, the craft was only ever designed to fill a niche in my cargo SSTOs so I found doing so quite unnecessary.


This is NOT Mark Thrimms SSTO, I
have had people ask in the past so I
just wanted to clarify.

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