by DoorCoMel » Mon Aug 02, 2010 12:28 pm
Thought I would add my experience with the jib cars here. After I bought my boat (1976 DS II) about 3 years ago, I discovered the jib cars were missing. In looking for replacements, it seemed that I had a narrower track than is currently used, so I bought a new set of cars and tracks from D&R. I first mounted them in the standard (inboard) position, but it became clear that sheeting from a forward (ie,crew) position would result in force being applied almost perpendicular to the plane of the track which appeared to be a good recipe for pulling the track loose. So I remounted them on top of the coaming, somewhat forward of the originals to give me the same fore/aft adjustment on the sheet. Now the force exerted by the jib is somewhat up, but mostly lateral to the track, and the force exerted by the crew is also mostly lateral. I mounted the track with SS screws and sealer, with no backing plate. Everything seems to be holding together quite well.
I don't know if this would be legal for racing. It does slightly limit how far inboard you can sheet the jib which I suppose makes a little difference on performance. The big positive is that now passengers/crew can sit all the way against the cuddy bulkhead without having the car in their back!