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- Type: SPH
- Class: spaceplane
- Part Count: 37
- Pure Stock
A stock aircraft called ssto 7.3 (5500 dV on orbit!). Built with 37 of the finest parts, its root part is mk2Cockpit.Standard.
Built in the SPH in KSP version 1.0.4.
Has gotten as much as (an amazing) 5500 dV after launching (without being refueled) into a 75x75 km orbit around Kerbin.
Most average launches get ~5000 to 5200 dV.
Hit 1 to start rapiers in open cycle
Start pulling up around 80m/s on the runway.
Maintain between 10-15 degrees of pitch ‘till 10k meters.
Pitch down/level out to get speed above 600 m/s.
Pull up slowly (maintain around 2 degrees above horizon) until speed is not increasing much (should be 1550+ m/s), then hit 2 to start the Nuclear engine. Keep doing this until you start slowing down instead of speeding up, then hit '3’ to force the rapiers into closed-cycle. Keep nose near or just above prograde until apoapse is at ~78 or 79km, then coast at prograde ‘till you cross 70km. Circularization burn should be near 80m/s or less. On a good run, circularization will be around 39-40m/s only(!)
When climbing, if the nose starts pointing in a different direction than you want, roll the aircraft to correct. It will slowly turn in the direction of 'up’. This works far better than attempting to yaw.
To reduce drag, there are no external fuel ducts. This means you need to transfer fuel manually to one of the middle tanks (the fore tank has 800 units of liquid fuel capacity, the aft tank 360). To burn up all the fuel you’ll need to do this up to three times (I generally do the first one after circularizing).
It can take some small cargo (3.5T) with it without issue and still make it into orbit with lots of dV left.
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