When it was introduced the F4U Corsair had several problems and these were slowly rectified even after it went into service. As the war progressed, there were fewer experienced aviators and a training version of the aircraft was required to teach the budding new pilots how to fly these "hot" ships. Initially a two-seat trainer was designed & it did pretty good service ...
But one fault was the horrible view over the nose on take-off & landing/taxiing -- there were still many accidents due to trainees not seeing obstacles in their path as the long nose blocked a free view of what was ahead. The answer of course was to lower the nose so that a good view was possible !! This led to the "crank"-nosed 2-seater Corsair which had a de-rated engine & a smaller diameter prop to ease their introduction from fast trainers like the T-6 Texan to Fast fighters. The aircraft was adored for it's ease of taking-off, landing & taxiing by Navy & Marine students & it was in fact these same students who gave their much loved, but ugly mount the monica of "Double-Bubble Buzzard".
I blame that "Rocky Horror" Radish & his current crop of models as the inspiration