hi guys thanks for the info I estimate the balancing weights with the arms glassed on to be around 1.4 kg and the computer for the fuel injection weighs 3 kg so I am working with that idea I have not yet got weight and balance figures yet but I feel from how the project is going I should get close with a far forward as possible weight and balance limit I have tricycle undercarrige also!! Time will tell drilling holes into the elevator to attact the arms is a concern and I only really want some bolts there to hold it while glassing I was going to use mill fibre around the area where the foam is removed and thought enough strength should be acheived! I was going to glass the whole length of the arm with about 2 inches of overlap onto the exsisting elevator! cheers Ross
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