by BlackRockStar
uploaded 2019-03-30
(updated 2019-04-14)
stock spaceplane


  • Type: SPH
  • Class: spaceplane
  • Part Count: 120
  • Pure Stock

Mass: 200.246t
Height: 8.8m
Width: 19.3m
Length: 37.2m


A stock aircraft called SSTO16. Built with 120 of the finest parts, its root part is Mark2Cockpit.

Built in the SPH in KSP version 1.7.0.

Crew: 1
Parts: 120
Cost: 240,155
Fuel cost: 12,910
Length: 37.2m
Width: 19.3m
Height: 8.8m
Empty weight: 72.220t
Loaded weight: 200.246t(Liquid Fuel: 13390 Oxidizer: 12210)
V1: 100m/s
Vr: 120m/s
Vlo: 150m/s
V2: 180m/s
Vso: 100m/s
Max. takeoff weight: 300t
Max AirSpeed (At sea level): 1700m/s
Maximum Safe Payload Weight to LKO: 50t.
Thrust/weight: CR-7 jet=0.86(V=0), KS-25=0.51(Vacuum)
DV(Vacuum): 2373m/s
DV(Air): 12450m/s
Cruising speed(at 23,400 m altitude):1680m/s
Turning Radius(ALT<500m, no rocket):385m( Turn Time*V/2*3.14)
Turn Time: 30sec
Ultimate load: 12G
Rate of climb(take off to 10000 altitude, AOA 20): 135m/s
Takeoff run: 524.2m
Brake distance(100m/s to 0m/s): 2500m
Roll rate(ALT<100m, Speed 300m/s):102/s
Wing Area:64m2
Drag Coefficient: 8.8
Cd*S: 3m2

Action Groups:

Number 1. RAPIER Activate/shutdown
Number 2. RAPIER Switch Mode
Number 3. KS-25 Activate/shutdown

Product Advantages

  1. Large Thrust to weight ratio, can quickly rise to kerbin low orbit.
  2. No extra appearance decoration, low aerodynamic drag. Enter kerbin low orbit to save 50% fuel.
  3. There are a variety of devices to support.
  4. More than one hundred test data allows you to quickly learn about the space plane.
  5. Docking port placed on the nose, easy to dock.


1. Start the KS-25 and CR-7 engines and take off when the SS16 speed = 120m/s.
2. Maintain pitch 10 degrees.
3. When the SS16 speed = 400m/s, turn off the KS-25 and increase the pitch to 15 degrees.
4. At an altitude of 8000m, reduce the pitch to 10 degrees, or set the direction to prograde.
5. At an altitude of 25000m, 0m/s, turn off the KS-25 and increase the pitch to 15 degrees.
4. At an altitude of 8000m, reduce the pitch to 10 degrees, or set the direction to prograde.
5. At 25000m above sea level, convert CR-7 to closed cycle mode and start ks-25.
6. When the speed is = 1800m/s, turn off the CR-7 engine and set the direction to prograde.
7. Continue to accelerate to low orbit.

Check spacecraft weight balance and Flow Priority before takeoff

Reentry & Landing

Reentry data

Data sheet:
The longitude here is for reference only.
If the space plane is heavy, increase the longitude.
If the space plane is lighter, reduce the longitude.

!!!Recommended to use mechjeb:

  1. At the reference longitude, start KS-25 Burn PE to 40km.
  2. Check the weight balance of the space plane before re-entry into the atmosphere.
  3. Maintain pitch 40 degrees and check the weight balance of the space plane during air braking.
  4. When the ground speed is reduced to 1100m/s, the aircraft to level flight
  5. Rely on experience to maintain or reduce speed, beware of aircraft overload.
  6. When the distance from the runway is only a few kilometers, the speed is controlled between 200m/s and 100m/s.
  7. The wheel turns to the ground and opens the parachute.

Don’t run out of fuel to keep the space plane balanced


Fall test

Acceleration test

Acceleration test data

Cruising test

default setting

Enter cruise

Run the first lap

Max Payload Lanuch(old version)

Payload Weight 0t test

Payload Weight 85t test


to be continued…

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