Question for the group of FAA paperwork experts:
As an electrical engineer, is Chris (or someone like him) qualified to do the engineering analysis and design of this system to justify the change on a form 337 or does it have to be a engineer with some specific aviation rating? Ed _____ From: [email protected] [mailto:[email protected]] On Behalf Of Chris Sent: Wednesday, February 18, 2009 10:53 AM To: [email protected] Subject: [ercoupe-tech] Ercoupe with 2 Electric Fuel Pumps on O200 Engine As an electrical engineer I envision a system with two fuel pumps for a 0-200 with no center tank. It would have two electric pumps. One would be powered conventionally off the generator-or-alternator/battery. The other pump would be powered off a small auxiliary battery. That battery would be on the order of a pound in weight. It would be charged off the electrical system of the aircraft. However, it would be isolated from the rest of the system by a diode (or two diodes in series for redundancy). A small circuit would be devised to indicate it is charged and has a button for testing. The whole thing could be built for $50. Of course, all the regulatory 337 stuff would be required and I don't even know where to begin on that. Chris N99674, about a year to go before flight.
