mike-wsm:
Quote:
They used to have yellow windows and blue goggles so the intruments could be seen but outdoors was all black.
That arrangement indeed was the most effective method of vision restriction in a small airplane, because it didn't create the illusory issues that the hood or foggles create. But, the yellow "glass" lost favor because it made it more difficult for the instructor or safety pilot to spot traffic.
Would it be possible to use polarzied plastic for the same effect, trainee has cross ploarized googles?
The trainee might be able to "cheat" be tilting his head enough though.