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Andy,
I remember Fred Weick
telling a story about the automatic carb heat system he was testing in the “Jeep”. (The Jeep was the Coupe prototype they
used for lots of development tests.
It turns out that while
carb heat can melt ice, partial carb heat can bring the incoming air right into
the best range for making ice. (Too
cold OR too warm and you get no ice – the middle temperature will make LOTS of
ice in the wrong conditions.)
Fred told the story of
flying into a regional airport and getting carb ice, on final if I remember
right. My memory of his story
includes the approach being over water right to the runway and it was a hairy
moment. Their testing showed it was
caused by the automatic carb heat being in a partially-on state.
I think they removed the
automatic carb from being an option after that. You might reconsider keeping that option installed. Let’s see what the experts here on the
list say.
Ed
Burkhead
http://edburkhead.com/
ed -at- edburkheadQQQ.com (change -at- and remove the QQQ)
I know you believe you understand what you
think I said, but I am not sure if
you realize that what you heard is not what I meant. (Jim, AKA Midnight Plowboy)
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 09, 2005
12:26 PM
To: [EMAIL PROTECTED];
[email protected]
Subject: Re: FW: WRB Re:
[COUPERS-FLYIN] Carb heat connection to throttle
I still have the automatic carb heat
linkage hooked up on my coupe. It's set up much like the accelerator pump
linkage on most automotive carbuerators. Most of the time it's right where it
should be, however if I know I'll be landing at a grass / dirt strip somewhere,
I simply put a slight bend to the "automatic" part of
the linkage so that it isn't functional. Back home just bend it back.
Andy Pomeroy
2417H in Arlington, WA
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