The first time I saw this film was in the UBAS Crew Room at Shawbury in the late 60s.
It was a nasty winter Saturday with low cloud and fog, so flying was scrubbed. Before we stacked to the bar, the Boss made us watch this very good and realistic training film.
A 16mm projector and screen was set up and the ATC cadets who had been scheduled to fly with 8 AEF, were invited in from next door.
Before the film started, the cadets’ officer warned them that the film was very realistic and that if any of them felt queasy, they should go outside.
All went well initially. The cadets were enthusiastically lapping it up, including the realistic arterial bleeding. Then we came to 10:32:
“Puncture in the chest. A sucking wound”
There was a quiet moan at the back of the room and their officer slid down the wall and passed out, much to the amusement of his charges!
After we had removed the casualty, the film was re-started and we watched it to the end, which included some nice shots of a SAR Sikorsky H-5.
Just a word of warning - the film is very graphic and the fake wounds are very realistic. You have been warned.
I looked up the Dakota that was used in the film. It wasn't a wreck at the time of filming, but was subsequently written off in a civilian fatal crash:
Ex US C-47A-25-DK 42-93531, ex RAF KG641. Stored at Canadian Forces Technical Services Detachment at Saskatoon, Saskatchewan. To civil register as CF-BJE, with Air Ontario by 1976. Later C-FBJE with Air Ontario. Crashed 1 November 1988 at Pikangikum Lake (about 100 miles north of Kenora, Ontario). Nose dived into lake with load of diesel fuel on board, 2 fatalities.
Canadian Forces Dakotas