---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Mon 11/09/20: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:47 AM - Re: Heavy wing (Gary Aman) 2. 04:58 AM - Re: Re: heavy left wing, how trim tabs work. (Gary Aman) 3. 01:26 PM - Re: heavy left wing, how trim tabs work. (esp3500) ________________________________ Message 1 _____________________________________ Time: 04:47:47 AM PST US From: Gary Aman Subject: Re: Kolb-List: Heavy wing Good to hear from you Boyd .Hope all is good out there! G.Aman > O G.Amann Nov 8, 2020, at 2:36 PM, B Young wrote: > > > I first flew my kolb mkiii in 2000. My right wing was heavy so i started making adjustments. > > First thing, i had to hold 2 to 3 pounds of stick pressure to keep the wings level, but we noticed that the ailerons were exactly even with the flaps. > > First I modified my rear attach fittings. I welded a small bead in the 1/2 inch hole, then filed the opposite side.. this effectively move the whole maybe 1/16 of an inch. on the heavy wing I lowered the trailing edge and on the light wing I raised a trailing edge. I did this on both sides and I lowered the rear attached point of the heavy wing and raise the rear attach on the right. This change the incidence from one wing to the other and it would fly hands off. but I noticed that the ailerons and flaps were out of alignment one being near an inch high and the other aileron being a inch low compared to the flaps. This is equivalent to kolbs adjustable fitting but not adjustable > > I then ordered another set of unmodified rear attach fittings from colb and remounted back of the wings to stock. Then I installed a trim tab.. my gray matter told me that when a wing stalls you disrupt the air on the top side of the Wing,, so I chose to put the trim tab on the bottom side of the aileron and bend it down that way flying at any speed the trim tab would stay in effect.. > My trim tab is 1 aileron Bay wide and it extends beyond the trailing edge inch and a half to 2 inches and it's bent down approximately 1/2 of an inch.. there's another 1 1/2 to 2-inch where I riveted it to the bottom of the aileron ribs and trailing edge. > > in my case where the right-wing was heavy I put a trim tab on the left aileron on the bottom side pointing down. the trim tab causes the left aileron to raise and the right aileron to lower and it corrected the role and I was back to hands-off flying and this time the ailerons and the flaps were still lined up perfectly. > > If you have questions please feel free to ask. > > Boyd Young > Kolb mkiii utah > ________________________________ Message 2 _____________________________________ Time: 04:58:43 AM PST US From: Gary Aman Subject: Re: Kolb-List: Re: heavy left wing, how trim tabs work. Nice to see some activity on the list. are you flying anything now Rick? > On Nov 8, 2020, at 8:53 AM, Rick Neilsen wrote: > > The problem is your Kolbs have a trim issue. The factory makes an optional adjustable universal joint (this is the wing rear attach fitting) that I think Dave is talking about and this is the best fix for this problem. > > Rick Neilsen > Redrive VW Powered MKIIIC > > On Sun, Nov 8, 2020 at 8:18 AM Watkinsdw > wrote: > > > When I had my Mk III Classic, I had big washers in the rear attachment point of the left wing. There were two on one side of the wing spar, and one on the other side, within the u-shape receiver. By rearranging the double stack to one side or the other, I could adjust the roll trim for flying solo, or with a passenger. Don=99t know if this will work for you, but it did for me.. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=499305#499305 > > > > > > > ========== > -List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?Kolb-List > ========== > FORUMS - > eferrer" target="_blank">http://forums.matronics.com > ========== > WIKI - > errer" target="_blank">http://wiki.matronics.com > ========== > b Site - > -Matt Dralle, List Admin. > rel="noreferrer" target="_blank">http://www.matronics.com/contribution > ========== > > > ________________________________ Message 3 _____________________________________ Time: 01:26:28 PM PST US Subject: Kolb-List: Re: heavy left wing, how trim tabs work. From: "esp3500" Of course my plane is one of the early model ones but I am curious. did the plans come with rigging instructions for these planes? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=499326#499326 ------------------------------------------------------------------------------------- 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.