I have had some success with teak and epoxy. If you fully encapsulate the wood, water penetration should not be a problem, but it is hard to permenantly coat piece like the track.

I have an ash track which is over 10 years old. It is just varnished if I remember correctly. Softwood is no good, but ash, oak, teak and mahogany should all work. Mahogany may be the best choice.

> I am in the process of building the rudder steering assembly from Nick's
> book. I am unsure what wood (or other...) to use for the sliding track
> assembly. I suspect that soft wood like cedar or redwood will wear too
> quickly. I have some oak, nut experience with oak and epoxy did not live
> up to the longevity test. I have some teak, but it is oily and I dont
> think that will work. I have some apple. And probably some maple. I also
> am wondering if some 1" x 1/4" aluminum angle wouldnt be better,
> if its available. Has anyone else built and used this and can offer
> comments?