I am selling my rotary Coot, you can fly it home or I have a trailer
that goes with it so you can also trailer it home, also I have a
couple core engines and lots of parts that go with it and all of the
molds for the plane if you want them also. Ok as for the answer why
I am selling it, I have 1600 hrs sitting in the seat and have done
it did it and been there and just moving on, probably giving up
flying as I am just running out of time to do all the things I want
to do, asking 12k for it. Ken Welter 360-834-4089
Ken Welter <
rotarycoot.ken@gmail.com
Ken is in the Portland area. Most fun anyone can have. I have been
for a ride.
Paul Lamar
Ok may have a buyer for my Coot but they don't want the engine
package, the package includes the engine with 200hrs on it, the
redrive, prop, radiator, oil coolers, 48 DCOE Weber carb and triple
MSD ignition, one MSD fires the trailing plugs and there are 2 MSD
units that fire each leading plug, asking 4k for the package and you
can also have the engine cowling if you want it. Ken
Okay, my first impression was 1600HRS on a rotary engine, but no,
only 200. The 1600HRS on a rotary would have been impressive. I
wonder what power was in it for 1400HRS that made him want to switch
power ?
Steve Carlisle
Lots of people have more than 1400 Hours. Ken loves to tinker and he
uses NOS to up the power to 300 HP for take off.
Paul Lamar
Ken never had anything but a rotary in his Coots. The first 1400
hrs.... rotary. As Paul said, loves to tinker and likely just
re-built it. The early engines had the Ross re-drive. Ken got tired
of sending it back for repair and eventually machined and built his
own belt drive system which is what is on this motor. He had a
sprag/clutch system at one point that hooked the rotary to a 2-cycle
engine of some sort as a "back-up" motor. Good luck to you Ken..!!
bruce buksyk
Hi Bruce, thanks for the follow up on the rotary Coot. Is it right
for me to assume the backup engine was for when the re-drive failed
! Do you know what was failing in the Ross re-drive ?
Thanks, Steve Carlisle
That airplane would have been perfect for your neck of the woods
Steve. Burns auto gas.
Paul Lamar
Paul, I am researching the Rotary engine for use in a Volmer Sportsman
(VJ-22). After searching the old Volmer archives, I came across a fellow
named Jim Moser an RV''r who installed a rotary in a VJ-22 air frame he
acquired. The power plant seized at 400 feet in takeoff, and crashed. He
told me the a Apex seal seized, he then sold of what had remained. Why
am I not considering the Coot, well I dio not like fiberglass, and the
VJ is scratch built wood, a very large support network, with many craft
flying, and it is easy to leave off the wheel gear, no need for that
where I operate.
Steve
He was wrong. The engine will not stop running if an apex seal seizes in
the slot.
The only way to seize a rotary is to run it without oil pressure. He
made a mistake
some where. He may have forgotten to tighten the bolts on the oil pick
up tube.
If he ran it plugs up in the VJ22 the oil pump may have failed to suck
oil because the pick
up tube is two to three times longer. A worn oil pump is likely to fail
to draw oil in those
circumstances.
He ran his rotary in his RV with plugs up which is asking for trouble.
Mazda did not design the engine to run lying on its side.
Shear stupidity.
Here are some pictures of his plugs up RV.
Paul Lamar
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