Xylan 4
by RuBisCO
uploaded 2017-07-04
(updated 2018-01-18)
stock spaceplane
#SSTO #cargo

- Type: SPH
- Class: spaceplane
- Part Count: 156
- Pure Stock

- Fuel Cost: 10435


Proven to lift 68 tons to 80-85 km orbit with ~250 m/s of Delta-V to spare.

Upgraded Xylan 3A/B to KSP 1.3.1. Upgraded RCS system and removed all physical struts and replaced them with autostruts, added fuel priority, all these were not features available in KSP 1.1.3. No longer maintaining different variants (A/B) as the weight penalty for carrying a docking port and RCS thrusters is too small to warrant a stripped down version.

To Orbit Procedure:
1. Run off the runway at fullpower.
2. Pitch up to 20 degrees, maintain that pitch.
3. Switch engine mode {1} and close intakes {2} once speed begins to decrease above 22-23 km.
4. Shut off all engines once predicted apogee exceeds 80 km.
5. Coast in pro-grade orientation to minimize drag.
6. Circularize orbit at apogee, switch to just inner engines {3} for orbital manuvering

From Orbit to Spaceport Procedure:
1. Reduce Apogee from 80 km to -10 km with spaceport at Antipole.
2. Come into atmosphere with a 20 degree pitch up.
- You can slow down faster by pitching higher up, or flipping upside-down and pitching down.
3. If needed you can use the inner engines on jet mode to cruise to spaceport.
4. Land at spaceport below 100 m/s, put brakes on and pitch down.
- If you land above 100 m/s or long on the runway, use parachute to slow down faster.

A mod aircraft called Xylan 4. Built with 156 of the finest parts, its root part is probeStackSmall.

Built in the SPH in KSP version 1.3.1.

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