Jeeeezus... I hope that happened on the ground!
Steve:
I have never seen any letter codes used on naval training aircraft (Primary, Basic or Advanced). I have indeed seen Advanced Fighter Trainers(e.g. F4F, F6F, etc) displaying a large letter and number (e.g. "G 20"). I have never attempted to document them as I believe that it was a very non-structured system with aircraft from the same base displaying a variety of letters. When I complete the USAAF codes perhaps I'll attempt to research the navy / marine system.
Putting all the Stearman's (and like fabric covered aircraft) into a covered building was done at NAS Norman as well as other fields in the mid-west. That area is known for torrential storms with baseball size hail and furious winds. Just last week Oklahoma and Texas were hit with severe storms that were very devastating.
Attached is a photo taken at Enid Army Air Field, Oklahoma 1943. It's a Cessna UC-78 that go hit possibly while still in the air.
