Fin Fabrication Start
02/04/11 17:45 Filed in: All
The fins use a prefabricated airfoil section that has to be cut per the plan, then fit to the steel tube spar. Cutting to shape was no problem, but I committed my first helicopter part butchery on the lower section. The tube spar has a curved lower section. In jamming it through the airfoil section I made a faint crease in the very thin aluminum skin. What I should have done is drill out the lower rivets to allow for easier fitting and riveted it back together on final assembly at the end. Oh well. Apparently I am not the first to have done this.
A replacement fin has been ordered, and surprisingly has arrived within a week. The box it came in also contained a turbine. Hooray!!! I have been pestering Eagle for almost the last year asking about my turbine. The answer was also “two more weeks”. Well pester-no-more. I have no immediate use for it, but I feel so much better having all the major helicopter pieces in my possession. No matter what happens to Eagle - not that I think anything will - I will be able to complete my machine.