I have similar results to Larry, My KR2S is a tail dragger and I has a 75HP Hapi VW engine, and has no problem turning left or right on pavement at very low speeds. Almost stopped I can give it some throttle and full rudder and turn it either way without brakes. I have never taxied it on grass. Always thought it would be fun to try a grass strip, but with plans built retractable gear which put me very close to the ground, not to mention very little clearance between the tires and their mini fairings, I have always worried about getting hung up in some long grass, and have been to chicken to just go for it. As far as Tim tabs go, there is a small trim tab on the elevator, which I can adjust via a cable to the cockpit, but I usually forget it is even there, as the controls are so light in the elevator that there are virtually no adverse forces to overcome in any phase of flight. I think I have once or twice adjusted it to fly level in cruise so I could take my hand off the stick for a few minutes, but that setting works perfectly well for take offs and landings so I don't bother with it. Maybe if I had the problem of dealing with the 195 knot speeds the Corvair guys are flying at, there would be some stiffer forces to overcome, but my 75 Horse VW only pulls me to about 120 kts or so max cruise. I don't really have a reliable airspeed indicator, so that is a guess based on using a GPS app in my cell phone for ground speed. Like Larry says, every plane is an individual and your results may vary... Todd Thelin In a message dated 6/20/2017 9:01:42 A.M. Pacific Daylight Time, krnet-requ...@list.krnet.org writes:
I have no rudder or aileron trim tabs. Mine flies straight and level in cruise. Stick free it will start a right turn after 5 seconds or so, very slowly, then accelerate. Other times it stays straight and level. I have outer wing tanks only so fuel balance might be cause. I have electric pitch trim (Ray Allen servo) My KR is set to zero/zero on engine thrust and main gear toe in/toe out. Tail wheel. At low speeds you should have full turn authority both ways. I run my tail wheel cables rater tight with springs. It taxies like a nose dragger on grass and hard surface. Power up on takeoff I have to use some right rudder and on climb. I had good directional control with the 4 inch solid tire even before I switched to the 6 inch pneumatic. If your KR is a 2s you should have no problems in taxi control. Something is not quite right. Don't run you cables so tight that it causes slack in the rudder cables from connection point to the rudder. As always, your results may vary............. Larry Flesner ------------------------------ Message: 10 Date: Mon, 19 Jun 2017 20:57:18 -0500 From: Larry Flesner <fles...@frontier.com> To: KRnet <krnet@list.krnet.org> Subject: Re: KR> Tail Wheel Authority Message-ID: <20170620015740.8707767...@filter03.dlls.pa.frontiernet.net> Content-Type: text/plain; charset="us-ascii"; format=flowed At 03:28 PM 6/19/2017, you wrote: >Dear Airplane Drivers, In your tail wheel aircraft; at low taxi >speeds, does one direction have more turn authority than another? _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
