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I'm not sure where you're thinking of putting the vortex generators and for what purpose. The 9 degree up-travel limitation is because during flight testing at 1400 lb. gross weight at full up elevator and full power, the slip-stream pushed down on the elevator enough that the behavior of the plane was unacceptable. This was told to me directly by Coupe designer Fred Weick. The split elevator allows most of the slipstream to go through the split area so there's less down-push on the tail at full power and full up elevator. Thus the Coupe with a split elevator better approaches the ideal of a plane with similar behavior power on or power off (except of course for going up or down). I'd say the split elevator is the fix of choice. Be warned, some ^#$%%^ fool local FAA idiots may turn down your request to convert your elevator in spite of the fact that the split elevator was the FAA tested and approved factory solution to the 1400 lb. gross weight, full up elevator, full power problem. Get your paperwork signed off BEFORE doing work on the plane. Ed Burkhead N3802H, ERCO 415-D http://www.ercoupe.org Darwin Girdauckis <[EMAIL PROTECTED]> wrote: >----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > >Just posting to say hi & ask a couple of questions. >Has anyone ever put vortex generators on a coupe? >I understand that to bring a 415c up to 1400 lb gross >you have to reduce the elevator up deflection to 9 degrees. >in order to retain stall prevention. If vortex generators were >used, couldn't they do the job allowing you to keep it at >11 degrees? If this has been talked to death already please >forgive me as I'm new to this group. > >funflyer > > > __________________________________________________________________ Your favorite stores, helpful shopping tools and great gift ideas. Experience the convenience of buying online with [EMAIL PROTECTED] http://shopnow.netscape.com/ Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/ ==^================================================================ This email was sent to: [EMAIL PROTECTED] EASY UNSUBSCRIBE click here: http://topica.com/u/?aVxiLm.aVzvvT Or send an email to: [EMAIL PROTECTED] T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^================================================================
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