Originally Posted by
albatross
A helicopter cockpit emergency egress door or window that could to be pulled in? Where are you going to put the darn thing?
Kinda counter intuitive.
Jettison one in forward flight? Regardless of which side the tail rotor is on stranger still.
It is to enable egress with water pressure opposing. Also allows for a little control of where the window goes, providing a little protection to the floats. Kind of makes sense when you think about it. The ergonomics of the system are not the best, tiny little tab to grab on to remove the beading before pulling the window in.
The video below gives a great demonstration of the windows and some of the ergonomic issues.
https://vimeopro.com/rollingball/wrhs/video/353912555