On 1/29/2021 10:52 PM, Dr. Feng Hsu via KRnet wrote:
I have been trying to do some high speed taxing on the KR2, and especially
trying to stop the bird completely for an engine runup test, but I failed
it every time because the bird just kept moving with only less than 2500rpm
throttle regardless how desperately I step my toes on the break paddles....
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
I've never heard anyone confess that their mechanical brakes performed
that poorly. If they perform that poorly on taxi test they certainly
won't work any better on landing. Get help from another local builder
to observe the operation at the wheel while you actuate the brakes in
the cockpit. I'm guessing there is a solution that will get them to
work at least marginally and that should be sufficient if kept in mind
while moving around on the ground. I flew a Tripacer for many years
with what I called "slow down only" brakes, a single heel brake master
cylinder operating a drum brake on each wheel. Not a lot of brake for
an aircraft the weight of a Tripacer. There is a solution, you just
need to find it.
Good luck..........
Larry Flesner
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