Lemain, help me out here then, in relation to the Hunter crash flight, where did you get:
We were told that the GoPro could see the altimeter. The report might have said "should have" or just "indicated". We are not told what the conditional tense is for. The report does state that the GoPro had poor performance when inverted:
I can't find where you get the idea that the AAIB suggest that the GoPro could see the Altimeter in G-BXFI that day. This is what I did find.
The images included a part of the ASI, some of the fuel system controls and
indicators, some of the oxygen system controls and indicators, the JPT indicator,
and occasionally the engine rpm gauge when the pilot moved sufficiently for it
to come into view21. Determining their indications was complicated by image
resolution, contrast and partial obscuration.
The altimeters, thrust levers, and many other indicators and controls, were not in the camera’s field of view.