Ryan Larson writes: > Carb heat on non-fuel injected engines helps keep the venturi from being > plugged up by ice. This can happen with air temps as high as 100F and > relative humidity of +50%. This normally happens when you are about to land > or make a long decent. When you bring the RPM's out of the green arc on a > fixed pitch prop aircraft you should either turn carb heat on for the > duration or with Piper aircraft, turn it on an make sure the engine doesn't > run rough. If it does, leave it on and let it burn off the ice, then the > engine should run more smoothly again. > > There are many descriptions of how to use Carb heat in the POH's and on the > web.
Thanks -- I'm sorry that we didn't make our topic clear enough before. What we're discussing is a different use of carb heat, to even out the distribution to the cylinders while running lean of peak in cruise. A lot of regularly-aspirated engines simply won't run smoothly lean-of-peak because of the uneven distribution in the carb; carb heat seems to even it out in some cases. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
