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Speaking of 'fuel economy' and aircraft, I always found it interesting that the SR-71 was designed with fuel tanks that would leak untill the aircraft reached a certain speed and sealed the tanks through gap compression. As we all know, the plane would be nearly empty of fuel just after takeoff and would have to immediately meet up with a waiting tanker to refuel.
Does anyone know if the Air Force made any attempts at collecting the fuel that would leak from the plane ?
I had never read of the MIG-25 having this problem, but then it was contructed mostly of steel.
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