James Lilly wrote: > > Does anyone know of any STC that will allow someone to convert a 414C to > a 415D? I can't deal with a 320 pound useful load anymore! I have an 85 > HP continental engine and I believe there must be some structural > modification that will allow the 415C carry more wieght...yea...like a > 415D!! Is that possible? Thanks fellow coupers! > > Jim Lilly...the NEW couper
No STC is necessary. The type certificate for the Coupes, Aircraft Specification A-787 which covers everything from the 415-D up through the Mooney M-10 Cadet, has a section which tells EXACTLY what's necessary to convert a 415-C to be LEGALLY a 415-D. This conversion gives the legal ability to have up to 1400 lb. gross weight. If the type certificate says you can do it, you can do it -- legally. But follow the rules they give exactly. Summary: The big thing is to replace the sheet metal over the fuel tank (under the cowl) with stainless steel to protect you in case of fire in the engine compartment. The 415-C should have had this, by the safety rules, but a paperwork mistake let it slip by. The next biggest thing is to put a multi-piece baffle to direct extra air around the oil tank. The real change (but an easier one) is to change the restricter ring on the control shaft so you only get 9 degrees of up travel. This prevents dangerously unstable behavior at full up elevator at full power and max gross weight. The down side is about 5 mph higher touch down speed and you can't horse up the nose at low speed so keep your head engaged when landing. There's some other stuff -- it's spelled out in the specification. I think the 415-D's landing behavior is good enough for me, and I certainly need the extra gross weight allowance and the financial protection of doing it legally. -- Ed Burkhead Peoria, Ill. Ercoupe N3802H, 415-D Never open an attachment with a ".exe" or ".com" or ".vbm" suffix. To be safe, turn off Microsoft's Visual Basic Macro execution option. Consider not using Outlook for mail - lots of viruses target its security flaws. --------------------------------- to unsubscribe 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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