Quote:
Originally Posted by SebC
It still baffles me that the restricted space is a cylinder, and not an inverted cone with its nose chopped off. You could be below the height of a neighbouring building and still not permitted to fly. Asinine over-regulation.
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Cylinder is simpler to visualize and put into practice although I understand your point. You'd need a calculus equation to figure out the height allowed vs. distance from the airport if it was a cone. On a slight tangent, airspace around airports often is in fact using a series of cylinders of increasing radius as altitude increases. The effect is an inverted wedding cake shape that resembles an inverted cone and is simple to use.