Wing Dowels
 

My Sig Kougar kit uses 1/4" dowels for the wing mounting. I've read to substitute with 5/16" dowels instead. Is there really that much difference with a plane the size of a Kougar?

RE: Wing Dowels
 

Nahhhhhh.

The 1/4" dowels will be plenty

RE: Wing Dowels
 

Hi!
Sure! It will work. But a much better way is using aluminium arrow shafts for wing dowels. Never compresses like wood do and much stiffer and lighter.

RE: Wing Dowels
 

Using larger dowels will help to prevent them from breaking in a crash. Instead of the dowels breaking, the wing will snap.

I'd prefer to replace dowels than build a new wing.

RE: Wing Dowels
 

Great point!

J

RE: Wing Dowels
 

I am not sure if this applies. But, one time I saw one 30% Extra 300 come down in a vertical spiral because the dowels failed in one wing in middle air. The wing rotated 90-deg.

Any ideas what could have happened?

Pedro

RE: Wing Dowels
 

You're talking about a different type of dowel

RE: Wing Dowels
 

I think it would be cool to see a 30% plane with dowels and rubber bands to hold the wing on:D

RE: Wing Dowels
 

I believe these are the dowels we're talking about

RE: Wing Dowels
 

Ah, I see now. A picture worth a thousand words. The dowels I referred insert into the side of the fuselage to prevent the wing from twisting once is in the wing-tube.

Thanks

RE: Wing Dowels
 

Anti-rotation dowels versus wing retention dowels.

A

RE: Wing Dowels
 

Yeah, I don't see a lot of need to make them bigger. Plus by making them bigger the wing leading edge may actually become weaker because of the larger holes required to hold them.