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rocketwatcher2001
Guest
Not to sound overly picky, but Rockets are Jets, atleast they are in the jet engine family. If I understand you correctly, what you are asking is whether or not it would be better for the launch vehicle to save a little weight by using atmospheric O2 for the first 50-100 thousand feet.<br /><br />The short answer is NO, LOX has so much more oxidizing ability than any practical amount of air/O2 that you could squeeze though an atmospheric intake. There is no practical way of feeding enough air/O2 to the combustion chamber to burn the huge amount of fuel required to provide the huge amount of thrust to lift a big launch vehicle. <div class="Discussion_UserSignature"> </div>