Unlike a hat brim the obstruction from the support bar is directly

at pupil level and the closeness to the eye means that even a

narrow obstruction will subtend an angle large enough to cause

a significant lateral blind spot. Most gliders on a collision

course are most likely to be level with oneself. This is a crazy

idea and to allow pilots to use it would be similar to allowing

flying with visual field defects.


I have not played with Google Glass and I understand the mount may restrict vision. However, AH-64 and F-35 pilot fly with helmet mounted HUDs, so there must be some way to mount this technology that doesn't restrict vision.

Also, There are airline pilots in the US with 1st class medicals who only have vision in 1 eye.

http://www.aopa.org/careerpilot/arti...dvisor&id=6343

"There are many cases involving loss of vision in one eye. Unilateral vision or visual field defects are waiverable for pilots, but typically not for controllers. Over 200 airmen with first class medical certificates and over 2,000 airmen overall hold a statement of demonstrated ability (SODA) for effective vision in only one eye.