Space When the Soviet put a cannon on their space station

AAR Galileo

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It's a story that few people know about, but in 1974-75, the soviet tested a canon to defend their space station in orbit.
They launch Saliout 3 equipped with a 23mm canon (see photo) and tested it in space. The model was a R-23M.
they fired around 50 shots to test the canon and the thrusters that compensated the recoil of the canon.
gallery-1447437515-screen-shot-2015-11-10-at-32900-pm.jpg


More info :
https://www.popularmechanics.com/mi...ere-is-the-soviet-unions-secret-space-cannon/
 
it says in the article that they opted for missiles in the end. how would that work considering there is no oxygen for the rocket motors?
 
There is no oxygen for the gun powder that proppels the 23mm rounds. Same thing with the missiles, they use stuff that dose not require O2 to ignite and burn.
 

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