Hi Sid I personally think that covering that gap is a good thing from a safety point of view. We recently had a KR go down killing its occupant and the only clue they could find was a dead bird on the runway. It is assumed that the bird went into the gap between the wing and the counter balance arm, jamming the aileron in the up position. The plane apparently rolled violently and pitched down just after takeoff. I believe the pilot managed to get it level before impact but the plane was destroyed. I had ideas of placing a "knife" in front of and in line with that arm.
Regards Dene Collett www.denecollett.com -----Original Message----- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of smwood Sent: 26 March, 2014 7:34 PM To: krnet at list.krnet.org Subject: Re: KR> Gap between counterweight The gap around the aileron counter weight on my KR-2 is 1/4-inch at the closest point where the weight comes through the wing skin. The arm goes through the middle of the trailing aux spar; closest clearance on the arm is 1/8-inch. The counter weights are flatter and wider than the plans to keep more inside the upper and lower skins. On the bottom skin I put a small fairing to cover the hole on each wing. The fairings are just big enough to permit the counter weight to go past the bottom skin line and not contact the fairing during full aileron deflection ( plus 10, minus 20 degrees). Clearance at full deflection is 1/8-inch. A 1/8-inch hole in the bottom of the fairing allows water to drain. My thought was a fairing sticking out would be better than a gapping hole as far as aerodynamic streamlining. Don't know if the drain holes whistle. BTW the F-18 models E,F & G have a series of several hundred open small holes around the perimeter of the jet engine air inlets. If you are curious why, contact me off-line. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA > Kr friends. > I was wondering how many space you all have between the counterweight And > the egde of the hole in the aft of the aft spar. To prevent a aileron jam > I am thinking about 10 mm space around it. > Wat do you guys have ? > Thanks > > Stef. > -- _______________________________________________ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4354 / Virus Database: 3722/7251 - Release Date: 03/26/14
