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#11
January 4th 08, 12:38 AM
posted to rec.aviation.piloting
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I'd never seen this before
Jim, you said
sqrt (R^2 + d^2) = R + h I don't think so. If R = 1 and D = 1, then the root of the sum of the squares isn't 2, but 1.414. . but for sure distance to the horizon is ((R + d) ^2 - R ^2) ^.5 maybe you were thinking (R + d)^2 as R^2 + 2Rd + d^2, so that the root is really of (2Rd +d^2) This would be fun, remembering some of the approximations when Rd (except in Mx's universe) 
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