As I understand it shimming the main gear legs is a standard fix on Cessnas - I had to do it to mine. I believe it's something that should be done as any...
... I have a couple of questions. Did you mean to say that you had shimmy when the strut was cold, i.e. 60F? Did you check the temp. of the strut after flying,...
Skip, I was in Redmond when Tim was shimming Kirk's gear legs. They worked very hard to get the thickest shim possible in there and now Kirk's legs are rock...
John, The one-piece clamp looks similar, but it's a lighter design. Also the one-piece is just tack welded to the plate. The two-piece looks like it's ...
John, The real issue that Bryan and I discussed is the effectiveness of the collar. It's totally adequate IF you are just flying around, taxiing, etc. But if...
Fellow ESers, I think it's ironic that I'm up here in Estes Park, CO. I'm staying at the Stanley Hotel for New Years. The Stanley Hotel, the location of...
Joe & Kris - Could it be that a taxi test before flight and a test on landing are not comparable? The difference should be that the strut extends fully after ...
Mike - I don't think the issue is the collar (one piece or two piece) "breaking loose from the flange". The collar is bolted to the flange with the same bolts...
Mike, I think using the correct Loctite with a gear leg that is tight (slides in with no detectable play) would be an excellent thing to do. To expect it to...
I wonder if an easy improvement would be to simply make a stronger clamp. It would need bigger bolts, but in theory there is no limit to how tight it could...
Mike - Stay there until you are able to contact it and seek its wise counsel. Looks like a beautiful place from which to carry on such an investigation. ... ...
Mike - Oooops, I just fired off a response to your previous one. After reading this posting, we do in fact agree as to the function of the collar and whether...
The pre-op is complete. Ready for the autopsy. No real news to report here - just thought it was worth mentioning to the guys that have a slight shimmy at 30...
Mike - This is email cleanup day. Where did she get the finger sleeve? We've got to put the controls surfaces back on the plane shortly and this sounds like...
John, I think it's a well known fact that every nosewheel airplane has shimmy. And every aircraft, from Cessna to Mooney, to Glasair to Vans has had shimmy. ...
John, Has any one checked the main wheel alignment as a possibly causing shimmy. I would think if the mains are trying to track different from the front since...
Well, today I went out and replicated Kris's test flight by going a couple of short legs with the access panel off the front of my nose strut fairing. I...
Related nose wheel issue. I disassembled an ES nose assembly and found the following. Photos attached. Rear bolts were OK. Front bolts were just a little...
Dave, If you search in the archives of this list you will find this problem was hashed out about like the nose wheel shimmy is going now. Lancair now stocks...
Sam - Good to hear from you. I don't know if anyone has done this. I would like to know the scenario of how the mains would cause the nose wheel to convulse...
Dave - Why the mix of bolts? This subject came up a couple of years ago and Tim tested the bolts with the 12 point heads. Lancair stocks them now, along with...
OK, I did a very poor job of explaining my photos. First they are not from my nose gear. The black bolts are the bolts that I removed. The other bolts are...
... I think we should compile data on the planes that do shimmy, planes that shimmy a little, and planes that don't. Compare as much as we can, and try to find...
Just another data point - there has been some discussion about the effect of braking and the resulting nosewheel loading. I measured the wheelbase as 82...
Gary, Good math! I was guessing we were adding a significant amount of weight to the nosewheel in braking, but the part that's beyond math is the effect of ...
Kris All I did was wrap the shim stock around the gear leg and tape it in place with masking tape on the side that is not going into the hole. It took a couple...
Gary, What's curious to me is that I can land and immediately brake hard and there's not a trace of shimmy until I get slow. There's no difference if I let go...
