Author Topic: Take-off not authorized because it is too cold?  (Read 1656 times)

Offline tyda0501

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Take-off not authorized because it is too cold?
« on: October 05, 2014, 07:27:36 PM »
I recently tried getting taking-off numbers for Minneapolis with the weather loaded from January 6th, 2014 in active sky which was the coldest day in over a decade there.  So with -28 degrees I get "Take-off not authorized ((UNKN) LIMITED). I actually tried warming it up to -20 and got the same thing. Any Ideas?

Offline philippepraprotnik

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Re: Take-off not authorized because it is too cold?
« Reply #1 on: October 19, 2014, 01:44:22 AM »
Air Canada cant operate here in Whitehorse when it is below -30c, air north on the other end can ... different aircraft and sleeping or not in an hangar will make the difference.

Offline dmitriys

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Re: Take-off not authorized because it is too cold?
« Reply #2 on: October 25, 2014, 08:12:45 AM »
I have similar issue with TopCat
It shows the same message when temperature is M03 :(

see attachments.

Offline dmitriys

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Re: Take-off not authorized because it is too cold?
« Reply #3 on: October 25, 2014, 08:15:24 AM »
I have investigated that TopCat cannot calculate anything if temperature below zero or equals.

I'm sure it's a bug :(