Section 21 – Flap


21-10 Flap Trailing Edges

Well having attempted to build the flaps with no twist, the next challenge is to finish them off by riveting the trailing edges together whilst keeping them perfectly straight! : ) The manual suggests keeping…


21-10 Nose Skin Blind Rivets

The rivet holes in the nose skin need final drilling with a #33 to allow a MK-319-BS rivet to fit. Interestingly, later on for the ailerons on page 22-08, Vans suggest a slightly smaller #34…


21-10 Riveting Bottom Skins

The manual suggests that you cleco the bottom skin in place and check for unwanted twist by placing a digital level on the rear side of the hinge assemblies. But I found it very hard…




21-07/08 Flap Sub Structure

After all the preparation it was finally time to actually start assembling the flaps. I attached the Doublers & Nutplates to the Inboard Rod assembles first. I was able to use the squeezer for riveting…


21-06 Priming Flap Parts

Etch Primer After scuffing and degreasing I got the acid etch primer sprayed … basically a day’s work! As luck would have it, we are having unusually warm weather here in the UK … 15ºC…


21-06 Dimpling

As always, lots of dimples. I gently scuffed the holes prior to dimpling ready for priming … I find it easier to do at this stage. But you have to remember it’s probably normally a…