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I was a Canberra pilot back in the day. The porthole in the canopy was simply a way for the pilot to see his way if the canopy misted or iced up, simple as that. In fact I never had to use it.
I was a Canberra pilot back in the day. The porthole in the canopy was simply a way for the pilot to see his way if the canopy misted or iced up, simple as that. In fact I never had to use it.
The panel in the nose cone was a piece of optically flat glass to avoid distortion which would affect the bomb site, and/or to give a camera a clear view forward.