Corrected entry: To make his planes go faster, Howard Hughes decided to take all the top wings off his biplanes, for the film "Hell's Angels." But when the film was played for the first time all the planes were biplanes; they all had the top wings.
kh1616
11th Sep 2015
Correction: He took the top wing off a plane he wanted to build for speed tests. The Hell's Angels movie planes were biplanes, as he was making a movie about the dogfights in WWI which were, of course, biplanes.