S2-17 "Thoroughbred" Solid Fuel Booster

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S2-17 "Thoroughbred" Solid Fuel Booster
Solid rocket booster by

Radial size Large, Radial mounted
Cost (total) 9 000.00 Funds
(dry) 4 200.00 Funds
Mass (total) 70.00 t
(dry) 10.00 t
Drag 0.2-0.3
Max. Temp. 2200 K
Volume  ?
Impact Tolerance 10 m/s
Research Heavier rocketry.png Heavier Rocketry
Unlock cost 27 000 Funds
Since version 1.8
Part configuration solidBoosterS2-17.cfg
Solid rocket booster
Maximum thrust (1 atm) 1 515.22 kN
(vacuum) 1 700.00 kN
Isp (1 atm) 205 s
(vacuum) 230 s
Fuel consumption 100.49 Units of fuel/s

Thrust vectoring 2 °
Fuel 8000.0 Units of fuel
Burn time (1 atm) 71 s
(vacuum) 79.6 s

The S2-17 "Thoroughbred" Solid Fuel Booster (also known as an SRB) is a solid rocket booster used to provide a short burst of additional thrust to a rocket. It comes as a single unit. The engine and fuel tank are one single part which means that it isn't possible to increase the burn time for it by adding more fuel tanks.

Product description

When Jeb asked Kerbodyne how to lift his house into space, this is what they came up with. The Thoroughbred is a truly massive solid rocket fuel booster. It is also the first booster Kerbodyne has managed to add thrust vector control to, adding surprising agility to this powerful motor.



  • Initial Release