Doc

Continuity mistake: The Avro Triplane goes back and forth between using the authentic four-blade metal-and plywood propeller from the era and a two-blade massive wood propeller. The reason is, the producers originally tried to use the historic designs as much as possible, but had to change some things in the course of the shooting because the originals proved to be not airworthy enough.

Doc ★

Factual error: The British pilot takes off in his Avro Triplane even though the American pilot hangs from his tail. By our modern standards, the planes of this era would be considered ultralights. The weight of a human hanging from its tail would put any ultralight so badly out of trim that it would stall instantly, even assuming it could handle the extra weight of a second person at all.

Doc ★