Author Topic: Shenzhou Service Module - anyone know fuel capacity?  (Read 1877 times)

Offline hal

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The engine nozzles at the back of the Shenzhou service module are pretty big, compared with Soyuz.  Does anyone have any more details on thrust, tank size, dv capability etc?


Offline Stephan

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RE: Shenzhou Service Module - anyone know fuel capacity?
« Reply #1 on: 11/09/2007 02:52 pm »
According to Astronautix, it's not very different except the thrust (but about the same propellants and ISP, so same DeltaV)

http://www.astronautix.com/craft/soyuztma.htm

Main Engine: KTDU-80. Main Engine Thrust: 3.920 kN (881 lbf). Main Engine Propellants: N2O4/UDMH. Main Engine Propellants: 900 kg (1 980 lb). Main Engine Isp: 305 sec. Spacecraft delta v: 390 m/s (1 270 ft/sec)

http://www.astronautix.com/craft/shenzhou.htm

Main Engine: 4 x 2500 N. Main Engine Thrust: 10.000 kN (2 248 lbf). Main Engine Propellants: N2O4/MMH. Main Engine Propellants: 1 000 kg (2 200 lb). Main Engine Isp: 290 sec. Spacecraft delta v: 380 m/s (1 240 ft/sec)
Best regards, Stephan

Offline tnphysics

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Re: Shenzhou Service Module - anyone know fuel capacity?
« Reply #2 on: 11/10/2007 01:29 am »
Can the RCS perform retrofire if the main engine fails?

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