by Chuck Walker » Thu Oct 26, 2017 10:27 am
I recently had to replace the tow bar plate on my Legacy. I called Humberto in Uvalde and after some research he told me that they had none in stock and the supplier who had made them in the past was no longer available. He indicated that they needed to find another supplier and would look into developing one. In the meantime, I took my old plate to a local machine shop and for $90 ($85 one hr labor + $5 material) had a new one fabricated.
I have to use a tug to push the Legacy back into the hangar due to the steep slope of the apron in front of it. The original plate was bent at a 45 deg angle, which was fine if you just used the Lancair tow bar to steer the aircraft when you moved it. Using the tug put a bending moment on the plate and one of the bolt holes pulled out. The original plate was 1/8" thick stainless with a 5/16" stainless rod welded to the front of it. I increased the thickness to 3/16" and kept it flat instead of putting the 45 deg bend in it, so the force is in sheer when the plane is pushed backward.
The assembly manual that came with the Legacy actually shows the plate as being flat. I put the aircraft on jacks and did a retraction test after installing the new plate to insure that it did not interfere with the nose gear doors. Scott, this doesn't solve your problem with the IV, but I share it for others who may be facing a similar issue.
Last edited by
Chuck Walker on Fri Oct 27, 2017 4:07 pm, edited 2 times in total.
Chuck Walker --- L2K 138 --- N27EB