Would I be right to assume the -1A is similar?
The F4U1 and F4U1A behave slightly differently.
Here is the flap comparison for the F4U1A
Here you notice that once again you have an optimum sustained turn when two notches of flaps are deflected.
However, the F4U1 flap comparison shown below confirms what TC said in an earlier post:
In this case you can see that when you get to two notches, you can reduce your turn radius even more by deflecting the flaps all the way, with no further loss in sustained turn rate. In practical terms what that means is that while you might stay at two notches of flaps in a nose to tail turn in the F4U1A, in order to optimise sustained turn rate, in the F4U1 you could deflect full flaps as the diagram above shows.
Many thanks to TC for following up on that point for me!
Can you help me figure out what I need to do to watch these films though? Something about a codec?
Did the link TC gave you help?
Badboy