The sandwich maker is refusing to buy me gunpowder for Christmas...again.
So this time she suggested something for my landyacht.
Since the arthritis has been making it difficult to hang onto the sheet rope (9mm), I am looking for recomendations regarding ratchet blocks.
I have never had much to do with them, so want to know what lasts well, whats best suited for landyachts, where to buy, catalogue or part numbers.
Any info is appreciated.
Stephen.
https://www.whitworths.com.au/ecatalogue/current/pages/sm/001.asp
And do a search for 'ratchet pulley' Make sure your sitting down when you do it.... or you might fall down when you see the prices
There are 2 main brands in ratchet pulleys 'Ronstan' & 'Harken' I don't know which is more reliable these days but I've always tended to use Ronstan (but the older model)
ALL ratchet pulleys need to be kept clean they don't like sand and grit, so wash them out after each days sailing.
I use the ronstan orbital auto rachet with the fluted alum sheeve 50mm, the 9mm rope fits perpect and it hold better than anything i've used..
I'm using a Holt Ratchet block and a collection of RWO, Holt and Barton blocks elsewhere. Paid no more than £12 (Aus 18.5, US 19.5) for any of them - doubles, triples, and ratchet..... however I did have to wait a while for some to appear on EBay new, most came from either the Republic of Ireland or Jersey so saved a lot on tax. But it really does pay to shop around as I have had a few from a local chandlers that was selling off old stock. Happy hunting
Cheers Col
Hi Stephen,
Mine is a Ronstan "RF76101 Series 70 Orbital Block Ratchet Single"
It cost me $115.00 posted. It only takes up to 10mm rope.
12mm won't fit. I liked the 12mm, it was really soft dyneema.
The ratchet can be switched off, which is handy in really light winds.
Not sure about the others that are available, but the ultimate would be one that only engaged the ratchet to hold load.
That would be a bonus, as the rope has to slip over a stationary pulley when sheeting out on mine.
That slipping over a stationary pulley is what i dont like about the ones I have tried
and the price of course Well over one hundred dollars the ones I have looked at
Which is why I have never had one
Errrrrr 'That slipping over a stationary pulley' is how a ratchet pulley actually works !!!!!!
It works like a normal pulley when pulled in and then the pulley itself locks and takes the load (or most of it) off your hands.
I have to say its one of those things you either LOVE them or HATE them there is rarely a middle ground on ratchet pulleys.
And have to smile when a newcomer enters the sport and tries to make a yacht as cheap as possible, and then they eventually find out the pulleys / sheet rope end up being the most expensive bit of the entire yacht.
Over my years of buying and selling water + land yachts the ratchet pulley NEVER gets sold, it gets changed to a 'normal' pulley before the sale.
I know what you mean Gizmo.
But in this day and age you would think that they could come up with a dog clutch system that only engages to hold the load.
When the rope is played out, it simply releases, or the friction could be adjusted to suit.
It works on big game fishing rods and rope endless pullies for hoisting.
Furry sheet ropes are a pain where the ratchet runs.
I have to tidy them up with a cigarette lighter every now and then.
Don't get me wrong though, I won't go sailing without mine.
Merry Christmas, Chook
Erm actually there is a ratchet block around that doesnt give friction when you let the sheet rope go .
The sheave is spring loaded in the cheeks and when you let the sheet
go the sheave rises up and completely disengages from the ratchet and free wheels in the other direction .
I havent tried one of these and dont know the brand either but the idea is good I think.
Cheap alternative is a to fit a pair of plastic cleats in a position where a quick flick will disengage the sheet.
Whitworths (local) have Harken HK2135 57mm carbo ratchet @$79.95
or Ratseys(UK) have selden 60mm ratchey blocks @$73.81 + $7.69 postage
either of these sound good- or do I keep looking for something a bit bigger dia.
found some some real good prices in the USA, but the companies I found dont send outside the USA!
stephen
i am with you stephen,hard enough with a ratchet block. Best thing that I have fitted to the yacht.
cheers
vic
C'mon guys, don't over react! Debate his statement but don't attack him.
To keep it on topic, I guess there would be limited value if you're racing on a short course and need to win, but if your sailing on the lakes you guys have in WA where you can sail to the horizon, I'd think a ratchet block would be essential. Horses for courses I guess.
Dam it, I thought we had got past this stuff. The anonymous ones have there own association and have said they do not want to be part of seabrease. Would it make more sense to join seabrease and post in the events section on what they are up to, where they are to hold events and let us know who they are. I am sure that it would be in there best interest and we can all start getting on for the benefit of land sailing.
Cheers
Vic
I am using a ronsen 70 automatic ratchet block. It takes a 12mm rope and I have found it a great block to use.
Cheers
Vic
Note the distinction between rachet blks, which can be switched on and off with a lever on the side of the blk, and an auto ratchet that engages the ratchet mechanism above a certain load(often adjustable with tools). With a ratchet blk in the off position(light air), the sheave turns both directions easily. With the ratchet engaged the sheave only turns one direction(sheeting in), and when you sheet out the mainsheet, it slides over the non rotating sheave, adding friction that contributes to the holding power of the block.
An auto ratchet sheave turns both directions easily under low loads. As the pull on the blk increases, at some point the ratchet mechanism kicks in and locks the sheave in one direction. When the sheet is dumped quickly, the load is removed and the ratchet is quickly released, allowing the sheet to run freely( unlike the standard ratchet sheave that is still locked).
Quite different from both of these is the Oxen block, that locks the sheave and sheet positively with a quick release after sheeting in. And it remains locked, even without tension on the sheet, until the line is sheeted in again slightly and released.
These are sohpisticated, complicated blocks, that work very well in ideal conditions. They're very expensive, over $250, and require maintenance, and may not stand up well to dirty environments. And if they malfunctioned in an emergency, might not release at all, unlike either style ratchet blk where the line can run over the sheave even if it's locked.
I find all the Harken ratchet blks to be a bit stouter and more durable than the Ronstan units. Haven't tried the others. I use the carbo ratchamatics, which are the lightest that Hkn makes, on my cats with good results, but they may not be a durable as the others in the dirt. I have a 75mm standard ratchet on my elderly Fed 5 that's doing well after many years of hard use.
Dave