wing warp
10-25-2007, 08:38 AM
#1
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wing warp
I've searched this forum on warped wings and found that spraying the wing down with Windex and pinning it down on your building board with the opposite warp can cancel out the warp. I'm in the process of doing this now.
My problem and question is this... My left wing's leading edge is between 3/16" and 1/4" higher than the trailing edge when put flat on my building board. I have not yet sheeted the bottom of the leading edge. If the Windex does not work, can the warp be canceled out when I glue this on? Incidentally, the plane is a GP Protege.
It does not take much force at all to bring the wing down flat now. I’m sure that when I cover it, I can get the warp out then, but I’d like to take care of it now.
My problem and question is this... My left wing's leading edge is between 3/16" and 1/4" higher than the trailing edge when put flat on my building board. I have not yet sheeted the bottom of the leading edge. If the Windex does not work, can the warp be canceled out when I glue this on? Incidentally, the plane is a GP Protege.
It does not take much force at all to bring the wing down flat now. I’m sure that when I cover it, I can get the warp out then, but I’d like to take care of it now.
10-25-2007, 10:50 AM
#2
RE: wing warp
I suggest to try and remove as much of the warp as possible through wetting of the wing and pinning/weighting in place until dry FIRST.
When you add your leading edge/trailing edge sheeting you can remove the remainder of the warp. You will need to pin/weight the wing down while the sheeting is drying. The reason for removing as much warp as possible by wetting first is so there is less torsional strain on the wing and the sheeting.
Check your plans BEFORE doing the sheeting. I am not familiar with the Protege, however, some planes require some washout (typically a shim placed under part of the trailing edge while sheeting ) to be built into the wing.
When you add your leading edge/trailing edge sheeting you can remove the remainder of the warp. You will need to pin/weight the wing down while the sheeting is drying. The reason for removing as much warp as possible by wetting first is so there is less torsional strain on the wing and the sheeting.
Check your plans BEFORE doing the sheeting. I am not familiar with the Protege, however, some planes require some washout (typically a shim placed under part of the trailing edge while sheeting ) to be built into the wing.
