Al has hit the nail on the head. But there's a third condition he didn't mention.
If (and it's a big if) you can get the FAA to sign of on a form 337 to install an actual O-200 engine without using the old convert-to-a-D O-200 STC, (maybe just using it as a reference for technical data) then you would have an O-200 on your C model. Get the paperwork signed off before you do anything else. But, if you're talking about the O-200 crankshaft being installed in a C-85, then you still legally have a C-85 in your legal C model. Ed Burkhead http://edburkhead.com/Ercoupe/index.htm East Peoria, Illinois ed -at- edburk???head.??com (remove the ? marks and change -at- to @) _____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of AJ DeMarzo Sent: Tuesday, January 01, 2008 3:45 PM To: [email protected] Subject: Re: [ercoupe-tech] Trim System Okay, let's look at thing logically, there may or may not be some footwork needed. I'm thinking that you're referring to the O-200 crank (etc.) STC for your C85. If that's correct then you are not converting your 85 to a 200 so your C model will stay intact because nothing in the STC requires the GW increase. If you're actually putting an O-200 into your Ercoupe and the STC says that you need the GW increase, then you have to go back to the instructions for converting the C to a D and comply with all of that, whatever it is. But (and here's where this can get mighty interesting), if you can get to the STC holder, see if you can use a lighter GW increase that is STC'd by Alpha and contact Skyport for the 1320 (?) GW increase that will keep your coupe a C. Making any sense? Al DeMarzo Visit the Ercoupe Swap Page - Free and Easy http://www.ercoupeowners.com/swap/swapbook.htm
