Ooh, nice shots, thanks! Cool colour
The hull number doesn't say much, except maybe it's the 332nd 470 built by Vanguard. The
sail number (which is a national one in 470s) would tell more. Anyway, the original layout and especially the inset main bulkhead (in front of the mast) places the boat in the early to mid-1970s.
I have already ordered up a new traveller rail to replace the bent original.
Good. My advice here would be to ditch the traveller car, and attach the sheet block to a rope bridle. It wouldn't even need to be adjustable, but you can use the existing fittings on the side tank for that if you want. Makes sheeting easier. The track would be just a (very necessary!) structural feature.
Some of the set-up seems pretty obvious, like the Spinnaker halyard which comes out of the bottom of the mast and I have it cleated all the way toward the stern on the floor.
That cleat should be at or near the back end of the centreboard case, with a turning block behind it. (More pictures!)
It's not clear where the main and jib halyards are meant to be cleated.
The main halyard seems to come out of the mast on the starboard side, make a 180° and cleat on a hook. There's no system for the jib halyard visible; you need at least a 6:1 (and preferably more) to get it properly tensioned.
I see how the vang is rigged, so that should be an easy bit
The vang is the most important adjustment in a 470, after the sheets! The poor 3:1 in the pictures is not original and is absolutely inadequate, even for recreational-only use. All the required blocks and cleats seem to be there on the centreboard case and the side tanks, so you only need a few new blocks between the mast and the boom. (And lots of low-stretch rope.) 16:1 is standard, 12:1 is fine.
the traveller cleats through the little rollers in the brackets for the rail.
As I said, you can use those for an adjustable bridle system as well.
I see the big blocks for the jib sheets but I'm not sure where and how they route down there.
Looks simple, the sheet runs straight from the jib through the block, and cleats on the opposite side deck. No one has used that system since 1975 or so, but if you want to keep that original, fine.
The boom has two blocks, both for a connection with the traveller set up, I assume?
Yeah, sounds like a standard 4:1 mainsheet.
I don't have any set up for a topping lift but I see blocks on the mast front and blocks below.
I see too many fairleads and blocks. It's like a previous owner has rigged new systems but hasn't bothered to undo the old ones. What type of turning block is there up the mast? (Picture!)
The centerboard trunk, too, is a busy place. Lots of rollers, blocks and cleats up there.
As in the previous area, there are too many blocks here, at least at the front end. You need only the one through block for the centreboard uphaul, for instance.
Sorry for so many questions but I am pretty much starting from scratch with the running rigging.
If you have questions, I have answers
_
Better move it to the side of the centreboard case (and add a top fairlead to it). Also, a "normal" single block would work better as an aft lead block than the cheek-y one.