The hinge needed a spacer between the underside of cowl and the hinge. This effectively lowers the closed door snug to the opening. .070 thick spacer tapering to .020 on the aft end. That is no doubt variable with other builds. Decided to use CS4-4 pull rivets on the hinge. The door itself was just countersunk to fit those rivets flush. The Cowl half of the hinge got recessed 6/32 tinnerman washers with the flush CS4-4s. It spreads the load a little more than just a flush countersink. If that ever causes problems, I'll just open the holes to #27 for 6/32 machine screws/all metal lock nuts..
Ready for hinge work. The forward side (right) hinge needed spacer to properly hold the closed door.
Tinnerman washers (6/32) with CS4-4 pull rivets hold the hinge in place on the cowl.
The underside view. It is spring loaded hinge and the open/close operation is very smooth.
