I purchased my gear legs from Diehl 20+ years ago and they had one
straight edge the entire length of the leg. They look to be the same as
NVaero is selling now. Unless Dan changed the design before I hooked up
with the KR community some 28 years ago I have no idea about the set
from the donor KR. I'm wondering if the builder of that KR modified
them, not that any of us builders today would do such a thing. I'm
thinking Steve is selling the gear legs in the same shape that he got
from Dan. I seem to recall Dan did a drop test on the legs for early
testing and Marty Roberts was involved in the early design / testing of
the gear. Someone mentioned the cast brackets are quite strong. The
brackets I questioned earlier and were changed by Dan were the lower
cast aluminum brackets that the axles bolted to. They were rather
narrow and had bolt holes to close to the edge in my opinion. There
were a couple of failures and Dan recalled them all and replaced them
with 1/4" 4130 steel. That has to be more that 15 years ago as I've
been flying mine since early 2004.
Not that it's important by any stretch of the imagination, but the lower cast
aluminum brackets had been recalled before I acquired my KR as a project 23
years ago. They had already been swapped out when I picked up the project.
Time does get away from us old timers... I would guess that if anyone wanted
to pin point a date (I don't), it would be in the old newsletters from around
1993 - 1995.
Dan was not a fan of the longer gear legs he sold to Larry and me. When he
first saw my plane, he tried to talk me into cutting a few inches off the gear.
I declined. His comment was, "Then make good landings!" I've been beating
this plane on the ground for 1200 hours now, and so far, the gear is still
hanging on. I did find an issue using the 5:00x5 tires with some of the tacky
tires that don't skid much on touchdown (Good Year Flight Custom III) as they
were actually twisting the spars a bit on touch down and causing some cracks in
the skin around the gear mounts. At that time, my flights were all from a high
altitude airport, which means a significantly higher landing speed. Between
the faster landings, more inertia to spin up a 5:00x5 tire, the tackiness of
the flight Custom III tires, and 6 more inches of leverage with the longer gear
legs, I could feel a noticeable jerk on the gear upon touch down. I took those
tires off and went back to the cheap Condor tires, which ended the problem.
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