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General control line discussion => Open Forum => Topic started by: Matt Brown on September 09, 2024, 02:59:41 PM
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I’m about to start on the wing construction of my Pathfinder profile. I’m a bit confused! There are two different ribs. Technically three but W2’s are 1/32 ply and get laminated to some of the W3’s. My confusion is that the W1 ribs which go in the center section have the section forward of the spars 1/16” smaller on the top and bottom rib profile. This would make sense if only the leading edge gets sheeted but the wing gets either sheeted or capstripped all over. I can’t see double sheeting that section making any sense nor a gain in strength really. Instructions don’t mention anything about it either. Do I just have maybe an early kit that had this mistake in the laser cut file? I’m thinking I’ll just add a little cap strip to each one in that area. Nothing else makes sense to me, unless I’m missing something that I’m not seeing in the build instructions.
Thanks, Matt
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Double LE sheeting at center section. "Scrap balsa blocker" is what I believe is called out on the plan set. ALSO shows on the fuselage side view wing section.
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Double LE sheeting at center section.
Thanks Dave, never seen that before but I’ll go with it. I just reread the instructions and still can’t find it. I guess it’s a bit of extra strength for the fuse joint. I could probably do the cap strip I was going with originally as I’ll be using electric power but a few extra grams aren’t going to make much difference!
Matt
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You can see the notation about it in the pic you posted.
Thanks Dave, never seen that before but I’ll go with it. I just reread the instructions and still can’t find it. I guess it’s a bit of extra strength for the fuse joint. I could probably do the cap strip I was going with originally as I’ll be using electric power but a few extra grams aren’t going to make much difference!
Matt
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You can see the notation about it in the pic you posted.
I saw that after my initial post but it wasn’t mentioned in the instructions that I could find.
Matt
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Sorry I'm a little late, but my PF Twin has double LE center sheeting sheeting. I lightened up the inner sheeting a little with some holes.
Hope this helps
Dave
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Hey Dave,
PM me I'd like to chat about the PF Twin.
Steve