Bringing back the idea of nuclear powered aircraft.
A really bad idea. As the article mentions, working out next generation biofuels for aircraft makes much more sense.
note: The air cooled reactor flown in the NB-36H was only 3 megawatts - about 4000 horsepower ... about the same as one of the B-36's piston engines (the B-36 had six piston and four jet engines. The tests were to evaluate shielding and flight operation of a nuclear reactor. It was never used to provide propulsion. More detail on the program here.
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