[Simon Hitchen]

Im having a problem fitting HS 707 (leading edge midspan rib) into the 601PP (pre punched skin) when attached to the skeleton. The fit is so tight that I really have to pull the trailing edge of the skin back to fit the TE spar. Is this normal. Ive checked the plans, everything is in place and measures up.

 

[Jamie]

It's going to be tight, but you should be able to cleco it starting at the front and working your way back.

The tanks have a very tight fit and the plans recommend that you file around the openings in the flanges to help the curve a little. The flanges tend to be bent straight on the ribs, so instead of having a nice curve on the rib you end up having several semi-straight edges.

So just take your file and sort of 'thin' the flanges at the ends a little until there's a nice curve. Next I would hit them with my scotch-brite wheel to polish up the filing marks.

Look ahead to your tank instructions and you'll see what I'm talking about.