Ed: Fuel flow: Now clear enough to me. You wrote: "Only if your plane is very light, flying solo, and the weather is cold so the engine is extra powerful, is it possible to get the nose so high that fuel does not flow properly to the engine. Not all Ercoupes can get the nose this high. As soon as the nose is lowered, power returns." This is exactly what I was waiting to hear !!!!!!!! It is hard to believe that this could happen, but we think that this could be the reason why the power went down soon after take off, when in a steep angle of climb (that was the case). It is the first time I hear this, and I insist, it is hard to believe to me that this could happen to a plane, but of course, physically possible. So, now talking about this issue, I attach a drawing I made, so if any of you can tell me the distance showed in the graphic (I called "d"). My friend's Erco Engine is a C90 and carburetor has been changed, so, perhaps is something wrong with that distance. Best regards, and thank you very much again for all of your help !!! Daniel Arditi Buenos Aires, Argentina
________________________________ From: Ed Burkhead <[email protected]> To: Daniel Arditi <[email protected]>; [email protected] Sent: Monday, April 20, 2009 6:46:54 PM Subject: RE: [ercoupe-tech] RPM Drop during Climb Out Daniel Arditi wrote: Although this explanation sounds very interesting to me, I still have some doubts: 1.- I don't understand clearly the reason why the fail occurred with 2 people and not with one. Is it that with more weight to lift you need more power and that extra power (with two people inside) has exceeded the limit the fuel flow with the .030 could provide? Daniel, The number of people and full gross weight should not have anything to do with loss of power. It is normal to take off and climb at full power – always. The fuel flow with the limiter is still many times what the engine can use (maybe 5 times as much fuel as the engine can use). 2.- Has the take of angle of climb anything to do with this problem ? Only if your plane is very light, flying solo, and the weather is cold so the engine is extra powerful, is it possible to get the nose so high that fuel does not flow properly to the engine. Not all Ercoupes can get the nose this high. As soon as the nose is lowered, power returns. Ed
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