Description

This kit has two optional features.

• Plywood F3 for use with a nylon engine mount
• Ribs cut for use with 3/32 leading and trailing edge sheeting and cap strips

Choose the alternate version or the standard version for each item.  On the alternate wing, the leading edge is 1/2″ balsa.  In either case, the spars are 1/2″ wide rather than the unusual 9/16 called for on the plan.

Wing saddles are notched for a 1″ x 3/8″ bolt block.

Thanks to Martin Kolm for the photo of his two Corkscrews.  In the rear of the photo is the original 20 size Corkscrew, and in the foreground is the Corkscrew 80.