RE: Hog Bipe Build - 2009
I just spent some quality time with my wood. I busted up all of the laser cut & die cut pieces. I really, really, really appreciate laser cut wood. After separating all of the wing ribs I wanted to clean up the "holes" which were pretty sloppy. I created 2 bundles of ribs, each tied together with a couple of rubber bands. I then aligned them by inserting 1/2" stock in the main spar slots. The Dremel with a sanding drum was used to clean up the holes in a single swipe. Turned out pretty well. Oh, btw, MA - I busted off 2 standoffs clean off and cracked 4 others requiring a bit of CA.
I'm going to refer to the manual steps as I go. Keeps me aware of where I'm at.
Step 1 - align the engine mount to the firewall, drill the holes and epoxy the 6-32 blind nuts. I clamped the mount to FW and scribed to location of the holes. I then removed the mount and drilled the holes in various stages to the necessary size for the blind nuts to ensure that the mount bolt holes were aligned properly. The mount was bolted to the FW with the blind nuts loosely fit. The 6-32 bolts were tightened to draw the blind nuts about 1/2 the way in. 30 minute epoxy was applied under the blind nuts and the bolts were tightened to fully set the nuts. I used a bunch of q-tips to clean off all the excess epoxy to ensure that the F-1A former would sit flush against the back of the FW.
Note - I am not going to glue F-1A to the FW because it will be used as the leading edge of the tank hatch. If I change my mind on this I can still glue it up. I am also not going to worry about mounting the engine to the mount until I fit the cowl.
pic 1 - 2: wing rib bundles
pic 3 - 5: FW and blind nuts
TTFN,