Friday, July 8, 2011

Vans Aircraft RV-12 Build, Section 17: Wing Skins (part 3)

Reference: page 17-03; 4 hours

Building both wings at the same time for the RV-12 is working very well. I'm almost to the point of jumping into the lighting kit installation. You will notice there are pictures below for both the right and left wings.

Step 1: Flip-over the wing placing it right-side-up on the table with the leading edge overhanging the edge by 4 inches. A helper will definitely be required to flip the wing over and a second helper might be useful stabilize the overhanging portion of the skins and prevent them from becoming creased acrss the most forwardrow of rivets as the wing is being re-positioned.

Builders note: Ethan and I were able to turn the wings over with no problems. We just rotated them over slowly and with care.

Step 2: Cleco the W-1201-L, W-1202-L & W-1203-L Inbd, Mid and Outbd Wing Skins to the skeleton using the open holes on the bottom and the top of the wing. Rivet the inbd, mid & outbd wing skins to the skeleton as called out in figure 1 on page 17-03 of Van's Aircrafts plans. Remove any remaining clecos.

Step 3: Cleco the bottom flange of the two W-1216B-L Hinge Ribs to the W-1202-L & W-1203-L Mid & Outbod Wing Skins. Flex the hinge ribs out of the way as required to allow insertion of the Hinge Bracket Assemblies. Insert clecos through the hinge ribs to the Hing Bracket Assemblies, main ribs, and Rear Spar Assembly.

In addition to the above steps, I started deburring, preping and priming the top skin of the wings.