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Old March 4 2013, 12:23 AM   #263
sojourner
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Re: SpaceX is a go for April 30th: 1st commercial launch to space stat

The problem did highlight a single point of failure on Dragon. Using one helium tank to pressurize the oxy tanks for 4 sets of thrusters was not great thinking. My guess is they will go to a second He tank and have it pressurize 2 diametrically opposed thruster pods. There by if one tank fails they still have 2 opposing thruster pods to ensure control.
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