I like a brad point drill for the hinges. They make hitting the mark a lot easier if you are doing free hand and if you are doing the Robart Drill Jig, a must I might add, you can spot the hole with the brad tip and then see if it is where you really want it before doing the finish drilling.

Home made jigs for things like top hinged ailerons and flaps usualy don't lend themself to the robart jig. If you use some scrap poplar or bass wood, and plane and edge to match the angle of the surface you are going to hinge, the cap it with another scrap. You end up with a female mold of the angle. Now, set up this jig in your drill press and drill through the jig from the inside where you want you hinges to be. Simply hold the jig tight to the surface and use the hole as your drill guide. This seemed like a lot of work before I did it the first time. It turns out to be a real time saver though. You can make a jig in just a few minutes.

For drilling into the 45 tapered LE on alierons, I just use a flat of scrap bass wide enough to hold two scraps of balsa tri stock set edge to edge. It is a easy made jig for these and will keep the hole centered.

These jigs don't hold up for very long, but they are good enough for a model, or two.

Don