Avionics Report

October 2000 Issue

Cockpit CO Detectors

SafeTest 90 is the one to beat but AIMís 935 does nearly as much for a fraction of the cost.

[IMGCAP(1)] Remember the great radon gas scare of the 1980s? No one had ever heard of the stuff and seemingly, overnight, you could buy a radon gas testing kit at the corner 7-11, along with a six-pack and a gallon of milk. Just as quickly, the panic over radon faded.

Worries about carbon monoxide (CO) have followed a similar path. Not to suggest that the household CO threat should be understated. Carbon monoxide poisoning is said to be the leading cause of accidental poisoning in the U.S., with some 1500 deaths annually. Itís deadly serious.

The inevitable aviation connection is that aircraft heaters rely on scavenged exhaust heat and thus CO can get into the cockpit. As noted in the...

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