Hurricane Speed Test in game

[IvanK]

Crumpp you said "Try the dry adiabatic lapse rate of 3 degree C / 1000 feet.... "

Why ?

The International Standard Atmosphere (ISA) lapse rate is 1.98 deg C per 1000 feet !

Its going to give a TAS even lower than what the IAS to TAS conversion above gives.
e.g. Based on the assumption Surface Temp is 19C then using the DALR at 3C/1000ft gives an OAT at 16,000ft of -29C so the 231MPH IAS I got would result in TAS of 289MPH versus the 298MPH TAS value I got using the ISA lapse rate.