shoestring?
 

I am assembling a GP shoestring at this time-the wing halves are joined with one joiner and epoxing opposing ply ribs too each other-what do you think about running a piece of fiberglass mat to join the halves for further reinforcement-thanks

RE: shoestring?
 

That is common practice to make the joint a bit stronger.
Tim

RE: shoestring?
 

I did it to mine, top and bottom. it certainly cant hurt.

RE: shoestring?
 

How your going to fly this plane and engine size are going to be determining factors on how much stress the root of the wing will incur. Some people believe that glassing the wing is a unneccessary step. I personally glassed mine. This is a fun, good looking and great flying plane with good landing characteristics.
Mark.

RE: shoestring?
 

Let me tell you about my experience glassing the center section of a wing.

My first plane was an LT40 ARF and I did not have a clue. To keep the wing together after I had epoxied it I turned it vertical - resting on a chair with the top of the wing in the rafters of the basement. I had taped the center section together. I looked at it and everything was great. Went to bed. In the morning I was extremely upset to discover that the wing had twisted 3/16 of an inch axially. In other words one leading edge was offset from the other. Bummer.

At the advise from one of my club members I used a model saw and cut the wing in half. Next I epoxied it back together on the bench with one section of the wing flat and the other section propped up. Like I should have done the first time. I was worried it would not have any strength becuse I had cut the joiner, but a member of my club suggested glassing the center section of the wing.

All I could find was 3" wide fiberglass tape at the LHS so that is what I used. I mixed the epoxy with alcohol to thin it and glassed the wing.

Later that year I flew it into a pine tree while landing. Took a 3" chunk out of the leading edge of the wing. Later I tip stalled the plane and cart wheeled it. That was 3 years ago. The center section has held.

I glass my center sections. JMO.
John

RE: shoestring?
 

I run about a 1 1/2 inch wide strip on most of my planes. Don't cover it so you can see if its holding up from time to time. Nobody is going to see it anyways.
Ive had mine about a year now and run a ST G90 in it. Real nice plane.
I also rund some cloth on the joins of the fire wall. This is also a "must."