Netters: Ah yes it always seems to be the little unexpected things that bite you in the hind parts.
Don Barry Kruyssen wrote: > I agree with Bobby in that the idle speed may contribute to ground loops. > > My Jabiru is supposed to idle at 1000 rpm which caused an excessively long > roll out after touch down. I backed the idle down to 800 rpm and reduced my > ground roll by about 200 feet. A soft rubber stop holds it at 1000 rpm and > if I pull back hard on the throttle it comes back to 800 rpm. > > On May 1st 2006 I took my brother in law for ride. After an hour or so, 5 > miles out he says that he needs to get on the ground ASAP as he is feeling > woozy. Then on short finals he starts loosing his breakfast into my hat (I > gave him my hat when turning finals). On roll out I ground looped at about > 20 kph. My concentration was else where and I may not have pulled the > throttle back the extra 200 rpm which may have contributed to my ground > looping. Bent the tail wheel assembly and cracked one wheel faring. Back in > the air last weekend. > > I may now look at my idle setup as I don't want to do that again. Maybe the > rubber block idea was not such a good idea. > > Just sharing my thoughts. > Regards > Barry Kruyssen > Cairns, Australia > k...@bigpond.com > http://www.users.bigpond.com/kr2/kr2.htm > > -----Original Message----- > From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf > Of bo...@hatconversions.com > Sent: Tuesday, 9 May 2006 11:36 AM > To: KRnet > Subject: Re: KR> VW 2180 Idle > > Guys, > Two different guys brought Kitfoxes to me in Fla because they said they > were really prone to ground loop. The one guy had tore up a wing tip. I > checked all the usual suspects, wheel alignment, etc, and when I couldn't > find a problem, I finally flew both of them. They both had Rotax 912's in > them that wouldn't idle slow. When you landed you were trying to overcome > the additional power with the brakes, and had trouble keeping the tail down > with the brakes and the additional airflow under the tail....Ideal set up to > either get it up on its nose or have a groundloop. > In my opinion, I would idle them as low as it can go before take off. > On final with the prop windmilling, it's not going to quit anyway. > Bobby > > _______________________________________ > 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
