Dan,I had a 35 amp generator on a coupe years ago on a 75 hp coupr. Flying out of Flagstaff (elevation 7000 ft. It definitely made a difference on power available when i turned off the master switch. I would not suggest that be done with an alternator because of the difference in the charging curve.With an alternator, the battery would normally be charged by the time you are ready for takeoff. If needed, alternatop installations have provisions to turn off the alternator separate from the master switch. Also, our engfines use a gear drine, not a belt. REGARDS Tom
--- On Fri, 3/12/10, Caliendo Dan <[email protected]> wrote: From: Caliendo Dan <[email protected]> Subject: Re: [ercoupe-tech] Cessna/Ford Alternator STC To: "THOMAS COOK" <[email protected]> Date: Friday, March 12, 2010, 12:11 PM Are you saying that switching off the master switch will decrease the load on the engine with an alternator and/or generator? I've never heard that and having trouble thinking how it would change the load much...you still have the belt driving the alt/gen. Dan C On Mar 12, 2010, at 11:50 AM, THOMAS COOK wrote: --- On Fri, 3/12/10, THOMAS COOK <tc...@prodigy. net> wrote: From: THOMAS COOK <tc...@prodigy. net> Subject: Re: [ercoupe-tech] Cessna/Ford Alternator STC To: "Donald" <[email protected]> Cc: ercoupe-tech@ yahoogroups. com Date: Friday, March 12, 2010, 10:40 AM Don, I have the Ford alternator/regulato r on mt coupe and I think it's great. It is lighter than my generator, puts out about 30 amps at 900 to 1000 rpm and full output at around 1500 rpm. (never checked because battery is up by the time the engine is warmed up). I was told to turn it off on takroff to reduce the load on the engine, but the battery is fully charged by then. I think this came from the older slower charging generators that only put out higher amps at high engine speeds. I have seen the new Plane Power alternators and they do not seem to put out full raed amps until the engine is at a higher rpm as compared to rhe Ford unit. The Ford unit has a long ,satisfactory history used tn the Cessna 150 planes with many thousands of hour in training. Hope this helps. TOM --- On Thu, 3/11/10, Donald <dongen...@rgv. rr.com> wrote: From: Donald <dongen...@rgv. rr.com> Subject: [ercoupe-tech] Cessna/Ford Alternator STC To: ercoupe-tech@ yahoogroups. com Date: Thursday, March 11, 2010, 10:56 AM I have in my possession a Ford/Cessna 0200 60 amp alternator and regulator which can of course be installed on the Ercoupe. I would like to exchange comments with anyone who has this alternator installed on their aircraft, to include pros and cons of the conversion.
