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November 19, 2020 2 min read
Harken ratchet blocks start at a 40mm sheave size and run up to 75mm sheave size for use on a majority of dinghies and catamarans.
There are four types of Harken ratchet block:
All of these ratchet blocks come in slightly different forms.
The T2 soft attach ratchet blocks are popular because they are lightweight with the flexibility of being able to be lashed or spliced anywhere on the boat. The T2 only comes as a ratchamatic which is an automatic ratchet block. As soon as pressure it put onto the block from the attachment point the ratchet engages, when there is no pressure it releases and doesn't engage.
The carbo blocks are popular where the block isn't going to need to move, or where it will sit and happily do the job of making your sheeting easier. This is the standard block issued for a Laser mainsheet block for example, it sits in the middle of the deck with a spring underneath. Carbo blocks are attached using a shackle.
These are available with an on/off switch in the centre, or as an automatic ratchet which can be adjusted using the allen key provided with the block.
The power3 ratchets are the latest blocks from Harken.
Available as a carbo on/off, automatic carbo and T2 these blocks have two different sheave designs which are more aggressive and grip the rope to provide either 1.5x or 2x the grip you would get from a standard block.
You can see all of the ratchet blocks we sell at Sailing Chandlery using the link below. Make sure you have a look at the red versions to add a little bit of extra colour to your boat.
Explore the range of Harken Ratchet Blocks at Sailing Chandlery
If you have any questions about any of the blocks we sell at Sailing Chandlery then get in touch with our friendly team who are always happy to help.
Slides easily through the blocks whilst providing firm grip
Item has brilliant bounce back ability, thanks
Simple to fit and makes launching and recovery simple. Well worth the investment
Quality material and design enables my lug sail to be stowed securely on it's spars
Great wide and grippy tyres for a shingle/sharp launching area and compound for an RS400.
Receive fantastic service couldn’t help any more if they tried. Arranged for me to collect my order at a time that suited even when it was outside of working hours. Much appreciated, thank you sailing Chandlery.
Excellent gloves, perhaps the best I have used. The fingers are long enough to provide protection from sheets/halyards and fit nicely so that ropes cannot get between the glove and finger. If the winter gloves are any guide they should also be very durable.
really happy with these! the thick material means that I will be warm whilst sailing, and the 3 finger coverage allows mobility and warmth on the water. the added grip will really help on the heavy wind reaches, can't wait to test them out this weekend. shipping was really quick, with a sweet included in my order thank you.
As always, great stock, quick delivery, perfect, thank you
The footprint of these is much more than standard trolley wheels so they roll on sand much easier.
These Falker Burgees are essential for our training fleet, giving an instant indication of apparent wind direction.
Made of stainless steel they do not corrode, and are easy to fit into the mast bracket.
It is a shame the sail part is not available as a spare as this part does not last forever, unlike the ss frame.
Nice product.
Arrived quickly and fits very well
Fast, efficient service and the lightweight trolley is perfect for my needs.
We needed to change the size and it looks like they will change the Hikers for a size up. Thank you very much
Thank you Sailing Chandlery for delivering my new sailing watch.
An excellent product and decent value.
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