Ola Nuno, tudo em ordem?

I faced the same problem with the Viper wing tube.

I just used a thick wall (about 2mm) 1 1/2 inch o.d. aluminum tube wich is twice as heavy as the original one but stronger, even if it is not sold as dural. Later I sent it to a local machinist to reduce a bit the outside diameter to fit the airplane fuselage and wings.


Um abraço, Enrique.