"Gary Drescher" wrote in message
. ..

Hm but that's not really the rule. Depending on the nature of the terrain
(sparsely, normally, or densely populated), it's either 500' from any
structure etc. (not necessarily 500' above, though), 500' AGL, or 1000'
above any obstacle that's within 2000' laterally.


Or an altitude allowing, if a power unit fails, an emergency landing without
undue hazard to persons or property on the surface.