---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Thu 02/17/11: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:05 AM - Re: landing gear toe in - out (David Kulp) 2. 06:27 PM - Grass Strip for Mark3 (Mark Rinehart) 3. 10:27 PM - Re: Grass Strip for Mark3 (Arksey@aol.com) ________________________________ Message 1 _____________________________________ Time: 08:05:01 AM PST US From: David Kulp Subject: Re: Kolb-List: landing gear toe in - out railroad track on the railroad ties. it was near impossible to look out the windows to see and keep things straight down the runway,,, but what i think was happening is the rolling resistance would flex the gear backwards, till i was in a toe out position,,, that would increase the rolling resistance, bend back more till the wheel would loose traction then the gear would spring forward, the wheel would slide, skip, roll, bounce, all at the same time and do it at 30 times a second. or there about. Boyd/list This brings to mind years ago when they first started putting radial tires on the steering axles of 18 wheelers. For a while we had our jobs cut out for us to keep the it in one lane. The rig would lurch right, then left; kind of where ever it wanted to go, and the driver was left with the task of getting safely to our destination. Through experimentation and testing they found that the toe in normal for years with bias tires didn't work with radials. I believe the amount of weight had something to do with it. The greater rolling resistance with bias tires pulled back on the steering and suspension, causing the wheels to roll parallel. But with the reduced rolling resistance of radials, the toe in remained intact, consequently the steering axle wheels "argued" with each other which one was in charge at any given moment. The resolution of this problem was welcome for those of us who fought with it for thousands of miles!! Good luck getting it right. Hope this info gives you some insight, like experimenting with tire pressure, which is easier to change than bending, and not nearly as "permanent." Dave Kulp Bethlehem, PA FireFly 11DMK ________________________________ Message 2 _____________________________________ Time: 06:27:29 PM PST US From: Mark Rinehart Subject: Kolb-List: Grass Strip for Mark3 Thanks to all for the responses. Sounds like I don't want anything less than 750 ft, and more is better. I'm going to the farm this weekend to walk the ground and see what location would be best. Mark Rinehart Indy Mark3 N68MR Sent from my iPad ________________________________ Message 3 _____________________________________ Time: 10:27:30 PM PST US From: Arksey@aol.com Subject: Re: Kolb-List: Grass Strip for Mark3 Mark, from my experience flying a MK lll with a 80 hp rotax at 900' above sea level with a full load you should be ok with a 1000' with clear approach on both ends....more of course would be better....for what it is worth....Jim Swan Do not archive FIRESTAR ll 503 Michigan jswan GPS FOR MY RUNWAY N 42 deg 28.581 W084deg 44.825 ph. 517-663-8488 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kolb-list Browse Digests http://www.matronics.com/digest/kolb-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.