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Old 27th Aug 2012, 06:39
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Diesel and Dust
 
Join Date: Jul 2012
Location: Africa
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Hi, RudderRudderrat
Thanks for all the information regarding the calculations and runway performance. I've never worked from 288deg K @ MSL.Been using your method on various other examples, and it seems to be working correct.

''Since surface temp = -25 (ISA-40), then apply 40/288 * 1760 correction = 244ft'' . Just want to make 100% sure.

Isn't it ISA = 15 deg @ MSL.
Surface temp : -25 deg C = ISA-10 deg Cel. Then using the formula : 10/288deg K * 1760 = 61 feet.
= 1760+61= 1821 Feet @ the FAN marker/OM.
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