Yeah, we learned a lot about user interface design during WWII from things like this.
The B-17 was one of the first 4-engine planes and some people thought it was impossible to fly, but really there were issues because the "raise/lower landing gear" and the "dump fuel overboard" switches were basically next to each other and used identical toggles to save money.
Now the landing gear switch is a big handle with a wheel on the end aka it looks like a landing gear and the fuel dump switch is under a protective Molly cover and they are far apart.
The B-17 was one of the first 4-engine planes and some people thought it was impossible to fly, but really there were issues because the "raise/lower landing gear" and the "dump fuel overboard" switches were basically next to each other and used identical toggles to save money.
Now the landing gear switch is a big handle with a wheel on the end aka it looks like a landing gear and the fuel dump switch is under a protective Molly cover and they are far apart.