----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- Howdy,
1. Vacuum is expressed in inches of mercury (in hg). The venturis on the side of the aircraft are rated by the amount of inches of suction that they can deliver- ie.. an 8 inch venturi delivers 8 inches hg. Most vacuum instruments need about 4 inches to make them run. The spinning one might actually be turning too slow- due to a blocked inlet filter behind the panel, which makes the gyro precess and not hold a course. 2. AC 43.13 states that the continuous electrical load of your airplane can only be 80 percent of the generator's capacity. 20 percent must be reserved for battery charging with ALL continuous electrical loads operating. jan zanutto Fresno, ca On Sun, 20 Aug 2000 20:22:47 -0700 Ed Burkhead <[EMAIL PROTECTED]> writes: > ----[Please read http://ercoupers.com/disclaimer.htm before following > any advice in this forum.]---- > Congratulations!!!!! > > I've never had a vacuum gauge -- I've only flown with one once. My > so > very vague memory was that suction should be 4-5 psi. Let's let > this > stimulate someone who REALLY KNOWS to give us the correct word. > > For the electrical usage, my Coupe only has a 20 amp generator. > It's > been enough for my flying, including night flying. > > Simply add the rated power of the items and compare it with the > generator output. > > My 20 amps is plenty to run the position and collision lights while > starting the engine at night. The battery can run those things and > the > two landing lights during taxi and supplement the generator during > the > high rpm take-off and departure from the pattern. Similarly, the > generator and battery handle the approach, landing and taxi in to > parking just fine. > > I've heard once that you're supposed to have enough generator to > handle > the full drain of all electrical equipment running simultaneously. > I've > never seen confirmation of that. With everything running, my 20 amp > generator discharges slowly. Two hours of pattern work may run down > the > battery some, but I've never gotten too low for operations. > > For that last regulatory issue, I hope we both get a definitive > answer. > > Ed > > > > dddoyle wrote: > > > > ----[Please read http://ercoupers.com/disclaimer.htm before > following any advice in this forum.]---- > > Hey Bill, > > > > Welcome to Coupe ownership. You're in for some serious flying > now. I can't > > help on your questions much but I do know there is an STC for an > alternator > > to replace the generator. If you add the transponder, etc, you > may have to > > go that route, and certainly the transponder with encoder is a > smart move. > > Check out the new units from Garmin and UPS/Apollo. Where are you > located? > > > > Ken Doyle > > Springfield, Mo > > Alon N5477E > > > > ----- Original Message ----- > > From: Bill Werner <[EMAIL PROTECTED]> > > To: <[email protected]> > > Sent: Sunday, August 20, 2000 9:50 PM > > Subject: [COUPERS] HEY! GUESS WHAT!!!! I'm a NEW Coupe Owner!!!! > > > > > ----[Please read http://ercoupers.com/disclaimer.htm before > following any > > advice in this forum.]---- > > > Hey everybody! > > > I went and bought an Ercoupe this last Saturday... tickled as > punch!!! The > > > plane is a 415D, has a Com radio, the double nose wheel fork, > and is in > > real > > > good shape! I do have a few questions, though, to rasie to you > good folks: > > > 1. When the suction guage shows about 3 to 4 inches, the > directional gyro > > > slowly spins, maybe 5 degrees or so every two seconds. Is that > the gyro, > > or > > > too much suction, or what? Can it be fixed? > > > 2. I am not sure, but I think the generator on the engine ( > C75-12) is a > > 35 > > > amp. Just how much can I safely add without overloading the > generator? It > > has > > > the radio, nav lights, landing light starter and strobe. I don't > think > > there > > > is anything else that is electrical. Could I add a transponder, > maybe > > another > > > nav/comm (or maybe an electric powered DG, in case the answer to > #1 is.. > > > "Sorry dude, you're SOL)) ? > > > > > > Thanks in advance! > > > Bill Werner, > > > Proud new Ercoupe Owner > > > > > > __________________________________________________ > > > To unsubscribe from this list please send > > mailto:[EMAIL PROTECTED] > > > ___________________________________________________________ > > > T O P I C A The Email You Want. http://www.topica.com/t/16 > > > Newsletters, Tips and Discussions on Your Favorite Topics > > > > __________________________________________________ > > To unsubscribe from this list please send > mailto:[EMAIL PROTECTED] > > ___________________________________________________________ > > T O P I C A The Email You Want. http://www.topica.com/t/16 > > Newsletters, Tips and Discussions on Your Favorite Topics > > __________________________________________________ > To unsubscribe from this list please send > mailto:[EMAIL PROTECTED] > ___________________________________________________________ > T O P I C A The Email You Want. http://www.topica.com/t/16 > Newsletters, Tips and Discussions on Your Favorite Topics > __________________________________________________ To unsubscribe from this list please send mailto:[EMAIL PROTECTED] ___________________________________________________________ T O P I C A The Email You Want. http://www.topica.com/t/16 Newsletters, Tips and Discussions on Your Favorite Topics
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