Don, Replace the spar and then you will know your worries are over. When I decided to go with the new AS5046 airfoil, I had to cut my center main spar loose and raise it to meet the correct incidence. It took me about thirty minutes to get the spar loose so I could raise it. I did it all with a very fine tooth hack saw blade and very slowly and carefully cut the spar loose from the vertical uprights on the fuselage sides. If you replace that spar then you will have no doubts about it's integrity when you are at 10,000 feet.
Mark Jones (N886MJ) Wales, WI My Web site: http://www.flykr2s.com/ Mailto:flyk...@wi.rr.com > -----Original Message----- > From: krnet-bounces+flykr2s=wi.rr....@mylist.net > [mailto:krnet-bounces+flykr2s=wi.rr....@mylist.net]On Behalf Of > captl...@aol.com > Sent: Friday, October 27, 2006 7:55 AM > To: kr...@mylist.net > Subject: KR> Cracked spar > > > It was a bad day at the airport. > > I bought a project that I've been working on about 6 > months to get ready > for inspection and was to the point that I was doing engine > runs and taxiing > it around the airport. > It has a Saturn engine (125 HP) and retractable tricycle > gear. The main > gear is the stock gear mounted behind the main spar. During > full power run ups > I heard a pop and shortly after that a cracking noise, after > which the main > gear retracted about half way. The problem was the brackets > that hold the > spring bar to the spar broke just above where they attach at > the bottom part of > the spar. This allowed the top part that holds the locking > mechanism to be > pushed up when the gear tried to retract. This caused the > spar to crack above the > holes drilled to hold the brackets in the top part of the > spar. The crack > runs parallel along the spar the entire width inside the fuselage. > Now the question for you engineer types! > I'm trying to figure a way to repair it without having to > completely tear > the fuselage apart. I was wondering if I could glue the spar > back and run > doublers on each side of the spar with them continuing though > the sides out to > the wing attach points? I'm also going to remove the gear > which I never liked > and change to the Grove type mains and make it a tail dragger. > Any advice would be greatly appreciated. > Thanks > Don Ray > N880DL > KR2XL > Waco, TX > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
