cheaper, smaller, bigger payload, recoverable
This will straight up lift 50t to LDO with no boosters. The payload it has as uploaded is about 11t.
Yeah, I've tested the upper stage (with 50t) with hydrolox. Its a lot lighter, you get a higher apoapsis, more time to switch to the booster. (And if you go that way, reduce nozzle size to ~75%.) But these are solutions in search of a problem. I prefer the kerolox / metholox setup, and carrying anything lighter than 50t, the first stage obvs flies higher and faster.
It was calibrated with 50t in mind, but as uploaded it has the career mode Traveller probe (it's Voyager) from the Grand Tour mission which I saved from when I did that. A 50t payload = starting TWR of 1.04, but trust the process. Right now, payload is about 11t, and 80 parts are in that payload. The rocket itself is quite simple.
GENERAL INFO
- Predecessor: Simple satellite launcher
- Created On: Windows
- Game Version: 1.3.204.1
- Price: $23,677k
- Number of Parts: 121
- Dimensions: 50 m x 7 m x 7 m
PERFORMANCE
- Total Delta V: 9.4km/s
- Total Thrust: 6.2MN
- Engines: 13
- Wet Mass: 3.74E+5kg
- Dry Mass: 34,399kg
STAGES
| Stage | Engines | Delta V | Thrust | Burn | Mass |
|---|---|---|---|---|---|
| 1 | 9 | 3.8km/s | 4.9MN | 2.7m | 3.74E+5kg |
| 2 | 3 | 5.6km/s | 1.3MN | 3.1m | 84,910kg |
| 3 | 0 | 0m/s | 0N | 0s | 74,779kg |
4 Comments
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90 HeartFoam2 days ago
@Toothless896 by all means! In pure d-v terms, it would be better with SRBs, but I wanted to keep the staging as clean as the OG. With SRBs, I'd make slight changes to the other engines to get better high altitude performance.
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If I spent longer on it, I think I'd have done it better. The rocket math is good, but not perfect. 200% pixies on stage one, 25m stage one (a little longer), 7m stage two (a little shorter). If you make those changes, the craft should be 49.9m, and have a starting TWR of 1.29 with a 50t payload.