"Roy Smith" wrote:

Your Piper experience differs from mine. Facing a long slow ILS through wet
clouds in a Piper, I'd set full carb heat, a minute or two before reducing
power. Ever taxi off the runway and have your engine quit?

I have had it quit on short final (in a PA-28-181). Almost exactly
the situation you described -- ILS on a cool day with very small
temp/dp spread, low vis, low scattered layer.

My CFII always used carb heat on a C-172 O-320 at anything less than full
power in wet conditions, and I've continued the practice with my 172RG O-360.

I have had one carb ice incident in 700 hours of operating an O-360, and that
was after a long taxi out on a wet morning. The engine would not throttle up
for the mag check, and half minute of carb heat cleared it.

Has using carb heat during damp approaches really kept me out of trouble? I
don't know; maybe it was my lucky key chain.
--
Dan
C-172RG at BFM