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International Space Flight (ESA, Russia, China and others) => Russian Launchers - Soyuz, Progress and Uncrewed => Topic started by: Danny Dot on 05/03/2008 09:23 pm

Title: Soyuz Ascent Nav
Post by: Danny Dot on 05/03/2008 09:23 pm

Does anyone have knowledge of Soyuz ascent navigation.  I know on entry there is a single attitude gyro, a couple of sets of rate gyros, and body fixed accelerometers.  My key question is this, "Does it have an INS/IMU?"

Title: Re: Soyuz Ascent Nav
Post by: Danderman on 06/25/2008 11:25 pm

Certainly Soyuz-U and Soyuz-FG have nothing like you mention. They do have a lot of gears in their ascent nav system, though.

Most Russian designs use inertial guidance, with corrections supplied by stations along the ground track.