The KSP is developing a new extremely lightweight SSTO design. They need your help to create one! (I know this is probably a common challenge but it would be nice to revive it)
Rules:
1. The SSTO can take off from the runway or the launchpad, but not from anywhere else (this will be noted in your entry)
2. The SSTO can be manned or unmanned (there will be two leaderboards for this)
3. The score is solely based on mass (the size of the craft doesn't matter)
4. No Kraken
3.687t not including crew (0.094t) and launch clamp (0.1t), 8 parts.
Ascend profile: 1. Start Rapier 2. Wait 1 sec. for the engine to develop thrust, then release launch clamp. 3. Turn 30 degrees at 25m/s and follow prograde. 4. Throttle down to 1/3 at 600m/s. Full throttle at 12000m (this prevents overheating and gives a more optimal, shallow climb). 5. Cut engine when Ap > 70000m. The engines automatically switches to close cycle afterwards. 6. Circularize at Ap.
Made it