Vinny002 发布于2014年9月27日 发布于2014年9月27日 Hi, guys! Question for you regarding the oxygen supply in the dcs mig-21. I know the oxygen supply in the dcs mig-21 is going down even with the blue mixture/oxygen switch to off and the oxygen supply lasts only about 20 minutes. How long the oxygen supply in the dcs mig-21 really suppose to last? Thanks! Cheers, Vincent
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