Well I have the info you want. I had a Seagull 540 until comming out of a loop (at idle) and began to level and add power my left wing snaped off. After inspecting what was left I found out Seagull does not use any hardwood in the spar. I have emailed and called Hanger 9 to let them know.

As to how the plan flys, Great!!! I put a OS .91 on the front with a 14 10 prop and it flew great for 3 weekends. construction of the plane is good just very dissapointed in the spar. The wing joiner is the only hard wood in the wing.

If you go to buy one just be careful.

Thanks