Maximum allowable OAT
Sorry if this has been done before, but....
I've done searches trying to find the MAXIMUM allowable OAT for operating aircraft. Lots to do with minimum temps and fuel freezing etc, but not a lot about maximum. I've now flown several aircraft where the max allowable OAT is +49C. Having chatted to some airline mates I find they too have a published 49/50degC nominal limit!
I find it difficult to believe that aircraft just haven't been tested above this temperature, so any ideas what gives? Our best guess was that it was a fuel limit as well.
Thanks in advance - sorry if I don't reply immediately to responses but I will check back!