When I am downwind opposite the spot of intended landing I put it on regardless of RPM, just to be safe.
If not in a normal pattern I usually put it on right before I start to reduce my RPM. My concern is during run up when I check the carb heat I usually just get a "wiggle" on the Tach although I know its working. Makes me a little jumpy at times. Jim N3439H FDK ----- Original Message ----- From: carl_lavon To: [email protected] Sent: Wednesday, February 18, 2009 8:40 PM Subject: [ercoupe-tech] Use of carb heat... My ASI only has a Vne mark on it and I was wondering at (approximately) what rpm rate would one apply the carb heat in a C75? I have been pulling it at about 1800 rpm. Suggestions? Thanks! Carl LaVon N415CB '46 ERCO 415C KJVY
