Bryan Colley’s review published on Letterboxd :
I assumed this would be a World War II movie but it's not. It was actually released a few months before Pearl Harbor, and is about research to keep pilots from blacking out during steep dives. As a movie about science, it's similar to The Dambusters, but throws in some real conflict and character development. Fred MacMurray and Errol Flynn play polar opposites who begrudgingly come to respect each other. My new crush Alexis Smith pops up just long enough to let us know this movie isn't going to waste time on silly romance. The only weak spot is a gag-heavy and unneeded comic relief character. If vintage aircraft is your thing, the film offers plenty of aerial footage of flying formations. The authenticity of the flying and research sequences gives it an almost documentary feel.