- Actual Flying Tigers Lawrence Moore and Kenneth Sanger were technical advisors.
- Some clips of the dogfights and Japanese ack-ack guns were from confiscated Japanese newsreels.
- No scene of the interior of the airplane could be shown for security reasons. The instrument boards shown were fake.
- This movie broke all boxoffice records for Republic Pictures by a large margin and was one of the top grossing movies of the year.
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