gambit
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Right...And I guess Lockheed designed the J58 engines for the SR-71 on YOUR engineering advice ?U 'avin a laff, m8? The thinner the air, the lower the quantity of oxygen in a given volume, the less the fuel needed to maintain stoichiometric balance in the combustion chamber of the engine. And rockets are not "mostly fuel," they have as much fuel and oxidizer as they need to maintain -- once again -- stoichiometric balance.
Perhaps you ought to get such basic engineering facts right before you joke about "Chinese physics," or presume to teach anyone here about . . . well . . . anything.
Rocket fuel, liquid or solid, contains their own oxidizer -- yes. But I was speaking in general principles when I used the word 'fuel'.
For something like a turbine or internal combustion engine, the word 'fuel' does not contain oxygen or any oxidizing agent. These engines requires atmospheric oxygen. To maintain a certain level of performance, less oxygen means higher fuel. For the J58, based on the requested performance level, a new type of fuel was needed. JP4/8 are essentially kerosene.
The J58 engine used JP7 fuel, which contains an oxidizing agent, just like rocket fuel...
https://en.wikipedia.org/wiki/JP-7
JP7's physical consistency is so thick that it is almost gelatinous....an oxidizing agent to make it burn more efficiently,...
Am I 'avin a laff, m8 ? Soitenly...m8...at YOU.