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A second take on Dark Star SR-72, using strakes and less fuselage parts. Performs worse at low altitude, but really well in the upper atmosphere. Tons of delta V - getting to orbit still leaves you with 50% fuel.
Is a little squirrelly just after takeoff due to rear CG with full tanks. Don’t worry, I’ve set the rearmost tanks to empty first so it settles down later on.
Action Group 1 = Toggle NERVs
Flight tips
Keep supersonic below 10km, probably a climb angle of 10 degrees ?
Level off to get to 440m/s (supersonic) once you reach 11km, then resume climb.
Level off again around 17km for speedrun - should be able to do 1100m/s on jet power only.
When you’ve had enough of that, start the nukes and set an angle of attack of 5 degrees. The way I do this is to take SAS off and use SHIFT + S (nose up trim) and SHIFT + W (nose down trim) so that the plane naturally settles with the nose pointing about 5 degrees above prograde. It should only need occasional roll corrections once you get this dialled in. SAS won’t be needed below 50km, the aerodynamics alone keep it straight.
Details
- Type: SPH
- Class: spaceplane
- Part Count: 64
- Pure Stock
- KSP: 1.12.3
