Hi I have a something extra I am building and are at the aileron hinge install stage. The directions say to use a number 11 blade and cut the hinge slots about 1/2 inch deep. I am worried that when I do this I won't get the cut straight, and how do you ensure that the aileron leading edge and wing trailing edge line up straight so the aileron does not end up higher or lower than the wing ?

Is is worth while buying a hinging machine or is it just as easy with a knife and number 11 blade.

I am little scared about starting this phase, as I don't want to ruin the plane.

Any help would be greatly appreaciated.

Thanks