# When You Know

The parallels between safe flying and safe driving. With footage of Army Air Force cadets studying Morse Code, having their reaction time and depth perception tested, and doing classroom work.

- Kind: Short
- Year: 1936
- Runtime: 8 min
- By: Handy (Jam) Organization
- Genres: Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/WhenYouK1936)
- Licence or status: [Public domain (Creative Commons dedication)](http://creativecommons.org/licenses/publicdomain/) (as the archive states it)
- Who can watch: Teens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/WhenYouK1936?play=1)