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Nigel & Nicks RV-7
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Date:  8-17-2018
Number of Hours:  4.00
Manual Reference:  DWG 14A
Brief Description:  Wing - Install Flap Brace

Todays job was to install the Flap Brace, finalise the Flap Hinge and temporarliy atach the flaps.

QUICKBUILDER’S NOTE: The W-721 must be attached to the rear spar with blind rivets. See the note on DWG 14A, Section B-B’.

THere are two choices for installing the flab hinge, I chose the second..

Choice 1 - Drill a small hole in the W-413 aileron hinge bracket assembly for the flap hinge pin to just go through. You will not be able to get this hole exactly in line with the flap hinge line, but this is a good thing. Drill the hole in the approximate position and when you insert the hinge pin for the flap, the pin will spring into position after being pushed all the way through and not be able to come out on its own. You may have to disconnect the aileron pushrod in the wing to remove this pin after the aircraft is fully assembled. This will allow you to swing the aileron out of the way for pin removal.

Choice 2 - An alternative method is to remove one hinge eye at the center of the flap hinge and two hinge eyes at the center of the wing hinge. This will allow you to get two hinge pins in from the center of the flap, one in each direction. Bend a small portion of the hinge pin at a right angle to grasp with pliers as you slide the pin into place. With the flap hanging down the hinge is accessible from the opening at the top. Push the bent portion of the pins forward to lie on the inside of the skin. Drill two small holes in the skin and safety the hinge pins in place.
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