CAB 13 Pattern

[David_Hayward (RIP)]

Yes, this must be the only genuine reason...allowing the screen to open up to 90 degrees defeats the whole object if it was an anti-aircraft idea. It simply does not wash. However with the screen sloped it would reduce glare, and then shifting the glass out of the eyeline after 30 degrees was demed insufficient also makes sense. Of course with the #43 cab you still had the sloping screen but in practice in sunny climes would the screen have been removed completely, and goggles worn?