I have installed gap seals on my KR-2 a couple of years ago and have seen no noticeabled difference in performance. I am considering taking them off. The gap seals cause more mechanical friction on the aileron rigging and that I don't need. Also the wing is easier to handle when off the plane without the seals. Follow the plans when building.
-Joe Message: 6 List-Post: krnet@list.krnet.org Date: Fri, 5 May 2006 22:16:10 -0500 From: "Mark Langford" <n5...@hiwaay.net> Subject: KR> flying To: "KRnet" <kr...@mylist.net> Message-ID: <001c01c670bb$6cc93a00$2802a8c0@2600xp> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original NetHeads, I've been doing a little bit of flying myself. Considering we were surrounded by thunderstorms, yesterday was a pretty smooth flying day. I got in about 3 hours, first doing climbs, glides, and stalls, then adding gap seals and repeating the process. Bottom line is that I could tell no appreciable difference in climb rate (and I have some pretty accurate data, gathered while maintaining 95mph in each climb, plus or minus a mph or two either way). Stall speed might have dropped a mph or two. Top speed appears to have improved slightly. I'll have to dig up the E6B to find out exactly how much, but it's not much. I attribute this to the care I exercised fairing the ailerons and split flaps into the wing (details near the bottom of http://home.hiwaay.net/~langford/owings.html ). Building ailerons per the plans yields a big fat gap at the bottom and that begs for gap seals. One odd thing is that the stalls are now preceeded by some noticeable buffeting, which is new, and I'd swear it climbs with less fuselage angle and lands easier (I greased about 5 in a row at FYM), but these are probably my imagination. I'm up to 519 KR "landings" (and still only on the second set of tires!) and 210.9 hours of KR time (sorry, Larry). Maybe I'll get some more in tomorrow, as I plan to buzz up to MRC to visit Troy Petteway, a 20 minute flight...