The lake also has this problem and they have weights

that they slide in and out of compartments in the front and rear.
 Ken Welter

Ken,
I thought of a movable weight some time ago but looks like someone beat me
to it. My thought was a tube with the weight internally or externally of the
tube, with the weight being slid backwards and forwards, as and when
required, operated by a trim wheel system.
George (down under)

 I have also put a 4 gallon fuel tank in the tail so I can shuffle
the CG in flight, the coot is particularly sensitive do to the high
thrust line and do to the fact that the seats are so far forward of
the CG.
Ken


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