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Old 26th February 2010 | 07:45
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FlightDetent

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From: Commuting not home
Originally Posted by Kirks gusset
By my simple maths, 3000 -560= 2440 at 3 degrees CDFA , just over 8 miles, this will put you at MDA about 1 mile from the VOR inbound


TDZE 56 + TCH 50 = 106 ft
MDA = 560
MDA - TCH = 454 ft

So to arrive over THR at 50 ft on a stable 3,02 deg profile (330 ft/NM) this will see you cross the MDA at 454/330 = 1,38 NM before THR a.k.a 5,5-1,38 = 4,12 NM after VOR. This is quite consistent with the DME table showing 610 ft at 4 DME (slant range, as correctly pointed out by Micro02). Correct?

Yours,
FD (the un-real)
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