Hardest Kit
Turbine Connection/Planes Plus F-86.
This is a giant size F-86 designed for turbine power. Kit came with the foam core wings already sheeted with carbon fiber blade spars. Trailing edge of the wing was coming apart where it should have been glued together. You could pull the sheeting away from the foam core without removing any foam. The left wing, when measured from the rear spar to the trailing edge was 1/4 inch longer than the same dimension on the right wing. The right wing was 1/8 inch longer than the left measured from the forward spar to the leading edge. The control surfaces were to be cut from the foam wing and the cutouts were already drawn on the wing. The only problem is that the cutout marks on the left wing did not match the corresponding marks on the right wing. The wings were supposed to have a layer of carbon fiber cloth laminated between the balsa and the foam. Well the bottom sheeting had the laminate but the top sheeting did not. the plans were not plans at all. they showed a profile of the plane without any meaningful details filled in. The instructions were 2 1/2 typed pages which things like "join the spars", and "install the landing gear". What a nightmare! The CG wasn't even shown on the plans and not even menytioned in the instructions at all. After several years, I am still working on this beast.