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the only way to keep the fire out is to keep the air out
being able to shut the cooling air flow, at the exit or intake will help a
lot.
I'm trying to put this in perspective.
Assuming no way to shut off the intake air, is firing a halon extinguisher
in flight going to have ANY worthwhile impact on an engine fire? Keep in
mind that the fiberglass cowl is likely to be breached early on, thus any
control of airflow is lost. I'm beginning to think that the most important
issues here are detection, and removal of the source (fuel) and that an
extinguisher would be useful to save the plane once landed, but worthless
(and wasted) if used while airborne.
Thinking of fire makes me glad I built a pusher.
John
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