As always there are opinions to the contrary, as is mine. I had an EAA Biplane that was almost impossible to keep straight on hard surface. I asked an Aeronautical engineer about toe-in toe-out gear alignment. His response was parallel alignment, or slightly toe-out. With a toe-in gear, the weight is shifted more to the affected wheel and increases the dive, where as a toe-out wheel will decrease the weight on the tire. --back to my biplane: the gear had a toe-in alignment, and was my problem. We had the same problem with a TailWind this summer. Once the toe-in alignment was corrected to slightly toe-out, the directional control issue disappeared.
"As always, your results and opinions may vary" ;-) L. D. Mueller -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of Larry Knox Sent: Tuesday, December 22, 2009 11:50 PM To: 'KRnet' Subject: RE: KR> Tail wheel/rudder interconnection Maybe not an expert but expert info. 1/4 in per wheel is probably minimum depending on the length and spring of you gear. Works for us on the hornet, longer gear we use a little more, I'm sure you will get the real low down from a real professional shortly it seems this net has a very valuable asset in it field of professionals. la...@lebanair.com -----Original Message----- From: krnet-bounces+larry=lebanair....@mylist.net [mailto:krnet-bounces+larry=lebanair....@mylist.net] On Behalf Of Barry Kruyssen Sent: Tuesday, December 22, 2009 2:14 PM To: 'KRnet' Subject: RE: KR> Tail wheel/rudder interconnection Hi Dan With regards to your wheel alignment. Never, ever should you have toe out. TOE OUT IS BAD. Let me explain (from what I know), a small amount of toe in is required as when the vehicle is moving forward, any movement (give, spring) in the suspension (and steering on cars) will result in the wheels pivoting backwards (every so slightly) and thus the wheels will end up parallel which is where we want them. Now with toe out you will find that the vehicle will veer (dive) left or right and when you correct it, it will over correct. In cars (where I have most of my limited experience in wheel aligning) toe out makes it hard to drive a car straight on very smooth flat road, the car keeps wanting to wander. Having a toe in of zero will most likely result in toe out when the vehicle is moving forwards. Too much toe in will scrub the tyres causing unnecessary wear. For more detail see may email in the archive http://www.maddyhome.com/krsrch/index.jsp dated 13 Feb 2008 and from k...@bigpond.com. My one cents worth (down from 2 cents due to the recession). As per normal, your results may differ and I'm no expert. Regards Barry Kruyssen k...@bigpond.com http://athertonairport.com.au/kr2 RAA registered 19-3873 Australia
