Trim System

[ben f]

Hi All

I have a Nipper with the early trim system comprising of a small lever attached to the stick which acts on a spring and in turn puts a force onto stick. It's not very effective and I understand it was replaced on later models by a more conventional hand-operated trim tab. Does anyone out there have the drawings of this later system that I could borrow/copy?

Regards

Ben G-NIPS