hitech,
thanks for taking the time to respond.
i assume the new, larger MA maps will be 512x512 miles?
i thought i'd do some testing of takeoffs from fields at various altitudes - here are the results.
all tests were done with full load (100% fuel, max loadout weight, airfield supplies for the goon).
i created fields at many different altitudes. i checked both small and large fields due to their differing runway lengths.
i tested the Lancaster, B-17 and C-47 to find the max altitude at which they could take off, either in auto-takeoff mode or manually. i fully raised flaps to gain max speed on the runway (without doing this, the Lanc and B-17 max alt using auto-takeoff is 1k at a large field, and they can't take off at sea level from a small field).
here are the highest altitudes (to the nearest thousand feet) at which takeoff is successful:
--- Lancaster ---
auto: 9k at large fields, 1k at small fields
manual: 9k at large fields, 1k at small fields
--- B-17 ---
auto: 9k at large fields, 4k at small fields
manual: 14k at large fields, 8k at small fields
--- C-47 ---
auto: 10k at large fields, 8k at small fields
manual: not sure, but very high... i took off successfully at a small field at 30k alt!
i conclude from this that large fields should be at 9k altitude max, and that small fields can be up to 8k (if we assume that planes should be able to auto-takeoff) to support a C-47 but not supporting bombers.
hmmm i should have done this in the first place. guess i'll be modifying my terrain