I read several books about it and also saw the famous movie. The determination of the necessary height was ingenious, a result of viewing spotlights at an opera or something like that.
As have I, movies and history of the bombs.
Done with slide rules and greatest computer ever , the human mind.
These men had more courage than I , I do not know if I could fly this gauntlet, knowing the danger.
Also the Dolittle raid on Japan, one way trip. I have utmost respect for these men and what they did for the civilized world.