[ARC5] An Interesting Failure Mode

[WA5CAB at cs.com]

Although that might be true, it doesn't necessarily follow from what very 
little we know..  

(1) The heated air around the tube must still be removed in order to remove 
the heat.  The tube may be in a compartment without any natural air flow 
through it such that it still reaches an excessively high temperature.

(2) although the air is colder, it is also thinner and natural flow may 
still not remove enough heat.

In a message dated 12/13/2016 14:11:59 PM Central Standard Time, 
wrcromwell at gmail.com writes: 
> The temperature at 20,000 feet is far below zero. I don't think there 
> were any pressurized (heated cabin) aircraft before the B-29. The 
> mosquito was a plywood, twin engine aircraft. If the thin air (due to no 
> pressurization) affected the fan then the fan also wouldn't be needed in 
> the frigid air. No beer cooler required, too -evil grin-.
> 
> 73,
> 
> Bill  KU8H

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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