I just scanned my Warrior II POH for this. It says to use carb heat if you
suspect icing (anywhere, but particularly in descents with low throttle
settings), and advises on how to check for the presence if icing. There's
also an optional carb ice detection system available for my model. Unlike
the Grumman AA1-C I fly, however, the descent checklist in the Piper says
"CARB HEAT ON (if needed)" instead of an unqualified "CARB HEAT ON".

I seem to remember hearing something about the location of the carburator
intake under the hood in the Cherokee -- it gets pre-warmed air or something
like that, and that's why it's not as likely to happen.

There's a decent article out there about this, if you're interested:
http://www.avweb.com/news/columns/182189-1.html.

Happy Landings!


"Hobbes1157" wrote in message
...
Hi there. I've got a question about the carb heat in a Cherokee. I was
told
that you only need to apply it for a short while (5 seconds) while on
downwind
to make sure the carb is clear of ice. She (CFI) said that Pipers don't
need it
all the time as Cessnas do. Is this just a technique or proper procedure?
Comments appreciated.
Plus: Hey Jay is this a family event at Oshkosh you're planning? I've got
my
non-flying family driving with me up to OSH and would like to meet some
other
local and non-local friendly folks!

Thanks,
Nolan

PPSEL, INST, commerial student
IA24 (green castle)