I was watching the trailer once more, and couldnt help but think how familiar the instructors voice sounded to me. Then it dawned on me, that it sounds an uncanny amount like the instructor Dennis, who teaches Steve from Flight Chops how to fly taildraggers on youtube. Take a listen and see if this sounds like him to you. Wondering if this is the voice actor they got. Maybe I'm just crazy and that Canadian twang sounds the same to me. It would make sense since that Super Cub is the same tail dragger that Steve learned in before we went to the Stearman. 

 

The US Navy used to have a terrific sense of humour with their training videos. Here's one about how to conduct preflight inspections of a Stearman, along with some funny examples of a "hapless trainee" who never seemed to anything quite right...

 

...be sure to watch until the very end!