I may be wrong, but I was led to believe that the reason for the increased gross weight of the 415-D was due to the further limiting of up-elevator motion therefore allowing for similar "no-stall" characteristics with higher gross weight. Then with the split elevator E's and later, the elevator-up motion was restored w/o compromising the higher gross weight. This was done to return elevator effectiveness at landing-flare time. I've been told that you have to land the D model a little faster because the limited elevator up(9 deg) does not provide good flare assertion at lower speeds like the original C(13 deg) does. This is the way I understood it. As far as the rear spar reinforcement, I was led to believe that this was a mandatory AD or something. My project 415-CD has the rear-spar reinforcment done and I was sold a bunch of New-Old-Stock reinforcement parts(Z shaped alumunum piece, if I'm remembering correctly). I've only been gathering 'coupe knowledge for about 8 mo. now, but through this list and by reading the ADs and other literature I feel that I'm ramping up quickly. I hope my knowledge of the above subject is accurate. If not, please inform.
Doug Stierman 415-CD N3957 - engine > > I'm no expert on this either. However, the serial number 2868 Ercoupe > is also covered under Aircraft Specification A-787 with NO conversion > required to the wing to get the gross weight up to 1400 lb. > > This probably won't help you on you Forney F-1A with gross weight of > 1450 lb. but it seems to me it should be all that is needed for a Forney > F1. The F1 shares the same gross weight (1400 lb.) with the 415-D > listed in A-787 for those serial number wings. > > Even considering all that, if there was a wing strengthening after s/n > 2868 you would want it on your Forney. And who knows what the FAA would > think about anything? Certainly not me. > > Just wanted to mention the type certificate information in case that > could help you or someone else lurking here. > > I think that the MOST VALUABLE PUBLICATION A COUPER COULD OWN IS > UNIVAIR'S "ESS" "Specifications, A.D. notes, S.T.C.s". I think that if > you can point to supporting words in the type certificate "aircraft > specification" you are 80% of the way to anywhere. > > -- > Ed Burkhead > Peoria, Ill. > Ercoupe N3802H, 415-D > > > [EMAIL PROTECTED] wrote: > > > > Ed and list: > > I am no expert regarding all this. Obviously if I were, I wouldn't be in > > this mess in the first place. The wings came from s/n 2868 certified under > > A-718. The Forney is s/n 5745 certified under A-787. Somewhere my IA found > > that one of the major differences was the wing. You are correct, the C is > > 1260 lbs and the F1-A is 1450. > > Dick > > -----Original Message----- > > From: Ed Burkhead <[EMAIL PROTECTED]> > > To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> > > Date: Tuesday, February 01, 2000 4:43 AM > > Subject: Re: [COUPERS-TECH] Rag Wings - The Rest of The Story > > > > I think you'll find that those wings are from an aircraft eligible in > > Aircraft Specification A-787.... > > > > --------------------------------- > > --------------------------------- > to unsubscribe send mailto:[EMAIL PROTECTED] > > ______________________________________________ > Faster, stronger and able to send millions > of emails in one click: the new Topica site! > http://www.topica.com/t/14 > --------------------------------- to unsubscribe send mailto:[EMAIL PROTECTED] ______________________________________________ Faster, stronger and able to send millions of emails in one click: the new Topica site! http://www.topica.com/t/14
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