Glad to learn both Chev and Ford both took part in the evolution of the CMP roof hatch.
Purely speculation on my part, but these hatches seem to be primarily a means of getting a better view of ones surroundings. In some theatres that was probably a useful feature. In others, perhaps not so much. Maybe that is why the presence of the hatch varies by Contract.
I just had a further thought. I wonder if these hatches are discussed/covered in the Design Branch books? Maybe they actually had a formal name there, as well as an explained purpose.
David
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