Also some simple geometry?
I recall that they were well above tracer burnout 3000’(?).
They are flying at 5000?
The distance from the windscreen to eye is ~2’
Distance to target ~7000? (45 d.)
We are 100m from center of target.
How much head movement can I live with?
Its actually a pylon turn, and yea with a grease pencil crosshair and a pylon turn it was pretty accurate.
Apparently it comes from a old delivery system they used to use for jungle/treed areas. Consisted of a collapsae bucket on a rope and in a pylon turn you could keep the rope and bucket in line, while you flew around it. I guess thats where the idea came from, only rope became stream of rounds. Apparently the old daredevil pilots of the 20s knew about the pylon turn and its effects.