January 5, 2021
The flaps are built like a mini-wing. There is a main spar that ribs attach too that are covered by a top and bottom skin. The rear spar of the flap is formed into the bottom skin and riveted to the back of each of the ribs. The top skin has the trailing edge bend in it and it overlaps the bottom skin where the rear spar is formed. It also protudes forward as a gap seal between the flap and the top wing skin.
Cleaned up a little, got all the Flap parts out of storage and started fabricating the little reinforcement brackets.
Finished fabricating the reinforcement bracket and started deburring all the edges of the flap parts.
More deburring of flap parts
Deburred the edges of the flap skins
Fabricated the little F-708 spacers and and started fitting the ribs to the flap skins and spar.
Drilled the flap ribs to the bottom skin and drilled the hinge to the bottom skin and spar.
Finished drilling all the skins to the spar and ribs. Also drilled the little bracket to the forward side of the spar.
Finished bending, drilling, countersinking and deburring all of the parts on the left flap.
Still drilling holes in flaps but now I am on the right one.
Drilled the top skin to the right flap ribs and spar and started drilling the brackets to the inboard rib.
Finished drilling all the holes in the flaps, dimpled all the holes in the flaps and got all the parts scuffed and ready to prime.
Primed all the parts of both flaps.
Riveted the actuator brackets onto both flap spars and inboard ribs. Started riveting the left flap together.
Finished riveting the left flap together.
Riveted the ribs to the bottom skin of the right flap
Finished riveting together the right flap.
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