Actually, you can't see the beam cross section. It is a 1/4" X 2" flat bar
as a base, then the track is a "X" in cross section, formed by two 3/16"X 1
1/2" angles.. The whole thing is welded.. (needless to say, I'm a retired
welder metal worker).

The traveler car is a LEWMAR running on roller bearings and which normally
would have been on an aluminum X track, on a trestle.. My arrangement is
much stronger.

The traveler control lines lead to a Hood continuous line winch.. With the
purchase I have on the line control, I can winch the car to windward in the
heaviest of conditions without luffing up..

I'm pretty happy with it, if I do say so myself.

Steve
s/v Good Intentions