Does anyone know where to find the strut materials in the picture? The pic is 1/3 scale so I would like smaller sizes. The geometry is round in nature but tapers on each end. Likely the composition is aluminium.

K&S Aluminum Streamline tubing. Search google for vendors. I bought some from Balsa USA a couple years ago. http://www.ksmetals.com/32.html

Thanks !

Tower Hobbies also used to sell it, don't know if they still carry it.

Be aware that the K&S tubing is very thin wall. I used it to mount floats on a beaver, but to gain some extra strength I shaped some wood to fit inside the aluminum tubing. Then slathered the wood up with epoxy and slid it into the aluminum.

Pat

Yup, the K&S tubing is not sufficient, without reinforcement.

I believe that Glen Torrence sells a tear drop tubing thaty has sufficient strength for the OP's usage.