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Old 15-04-2021, 10:03   #16
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Join Date: Feb 2021
Location: PNW
Boat: Old Wooden Ketch
Posts: 30
Re: Mill my own T-track? Aluminum Bronze or Silicon Bronze?

954 is very strong, stronger than aluminum and certainly adequate if used in the standard sizes to match your track cars. I also cast my track cars but I would not recommend that without good reason.

The bar is cast to guarantee cleaning up to the nominal dimension. The surface is a bit rough, but after removing all the roughness you have the size of material that you ordered, or a bit more. They can be as much as 1/8" oversize in thickness. I use a 36 grit sanding disk on the angle grinder to smooth it out, finishing with finer grits will give a better polish if desired.

A 1" bar will not be very easy to bend regardless of the thickness. What size is your jib? I would size the track based off what you have today or what a track manufacturer recommends, their metal isn't any stronger than yours is.

Here is a picture of a track I made for my bowsprit, a little hard to see but you get the idea. I used bar that was a bit thin for the clearance needed by my track car, so I epoxied a 1/8" hardwood strip to the top of the bowsprit for clearance. I would not recommend that, it is and extra step and teak does not glue well.

You could do tracks for most of the boat, but switch to a couple padeyes aft of the cockpit where you are unlikely to need fine tuning adjustment. They would be suitable for lifeline mesh or whatever. For jib loads, you will want through bolts holding the track if you weren't already planning that.

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Old 15-04-2021, 14:15   #17
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Join Date: May 2011
Boat: 1984 Nor'Sea27
Posts: 191
Re: Mill my own T-track? Aluminum Bronze or Silicon Bronze?

If the rest of your boat is as classy as the first 1' 6"..... you got to post more photos!!!!!!
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aluminum, bronze

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