Serge, Read Barnaby Wainfan's articles in Kitplanes concerning flaps. There are several types of flaps and all have there pro's and con's. Plain flaps are easy to make but don't provide as much lift as slotted or fowler flaps. Split flaps aren't as effective as plain flaps but create a whole lot more drag than plain flaps. Slotted flaps (that's what I'm building into my wings, are good at both creating more lift and when deployed far enough create a whole lot of drag and aren't as complex as fowler flaps. I really suggest you read Barnaby's articles if you can, they'll be a great help to you.
Fred Johnson Reno, NV. -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of Serge VIDAL Sent: Friday, August 18, 2006 8:48 AM To: KRnet Subject: KR> Flaps I am considering adding flaps to my KR2 at a later stage, and the time is right to make provisions for them. I'm looking at something easy to retro-fit. Now, I have seen pictures of an Australian-built KR2 which has got what I believe is called split flaps (just the lower skin drops, rather than the whole profile). I wonder which design would be more efficient, aerodynamically speaking? That one, or the one described in the plans? Also, considering this spans only the width of the stubwings, can you really expect any significant change? Serge Vidal KR2 "Kilimanjaro Cloud" Paris, France " Ce courriel et les documents qui y sont attachés peuvent contenir des informations confidentielles. Si vous n'êtes pas le destinataire escompté, merci d'en informer l'expéditeur immédiatement et de détruire ce courriel ainsi que tous les documents attachés de votre système informatique. Toute divulgation, distribution ou copie du présent courriel et des documents attachés sans autorisation préalable de son émetteur est interdite." " This e-mail and any attached documents may contain confidential or proprietary information. If you are not the intended recipient, please advise the sender immediately and delete this e-mail and all attached documents from your computer system. Any unauthorised disclosure, distribution or copying hereof is prohibited."