[atckyrre]

Juha,

I agree and having discussed this with my fellow FAA enthusiast we've come to the "conclusion" that the gunner must have been positioned in the turret.
It is interesting to note that it seems most FAA Avengers flew without the 50 Cal in the dorsal position, even though it would be natural to actually give the enemy a "squirt" as you flew on. Guess the window was used for observation and photographing hits instead.

Thanks for chipping in.

Kyrre