Graham,
If the seat in your KR-2 is plywood, then it must be a straight flat
run from the front spar to the rear spar. Things may have changed in the
last thirty years but when I built the plans called for a heavy canvas sling
seat attached the same way as your plywood seat however the depth can be
adjusted up or down simply by lengthing or shortning the canvas.
As for your CG problem, the best way I know of to change the CG and
make it move forward is to extend the engine forward by installing spacers
where the engine mounts to the engine mount. The engine is so heavy that it
does not have to be moved very much forward to cause a drastic change in the
CG location. It was a long time ago when I built so there may be better
ways to solve your problems. I am sure you will get more responses since we
have some very sharp experenced people on the net.
Bob Stone, Harker Heights, Tx
[email protected]
----- Original Message -----
From: "Graham & Ruth Strout" <[email protected]>
To: <[email protected]>
Sent: Friday, March 12, 2004 5:11 AM
Subject: KR>KR-2 seats
I recently purchased an early model (1987) KR-2 and one of the problems I'd
like sorted is the available head room. I'm not a builder but am prepared to
tackle some smaller jobs. At the moment it is a ply bench seat and cushion
which gives me 31.5" from cushion to top of canopy. This means having to fly
in a bent position and does not allow for headphones. The plane I usually
fly has 35.5' and this is what I'd like. The bench is supported by
longitudinal ribs and there is about 5-6" under the ply bench. To lower the
bench would interfere with the elevator rod, so now I'm thinking of
individual seats. I want to go as low as I can without my b-m dragging on
the ground. What have other owners done? Is there an 'off the shelf" seat I
can purchase? If not has somebody got a design I could copy or get ideas,
especially how it can be mounted to the spars but be kept as low as
possible. It would have to be light as my C of G is a fair way aft as it is.
In fact it wouldn't hurt for the pilot to go forward 1-2". The other option
is to remove the turtleneck/canopy and start again. This not a good option
because it would be beyond me and my time.Thankyou Graham.
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