Harken Carbo Ratchamatic - T2 Soft-Attach
HAR-2159
Standard 10:1 Holding Power
Patent Design
Soft Attachment:
Dyneema core, polyester covered line
Line included
with instructions on forming a becket
Super lightweight, no hard shackle
Load sensitive ratchet mechanism
Select by Sheave diameter:
40mm or 57mm
More Information
Harken Ratchet Blocks help the crew to handle heavier loads, providing supreme handling for mainsheet and spinnaker systems on beachcats, dinghies and sportsboats.
Harken Sheaves:
Harken standard ratchamatic sheaves maintain a secure grip on the line by means of eight specially designed facets.
Facets are the angled concave shapes formed specifically to grip the line under load.
They act a bit like the pockets in a chain gypsy (although far less pronounced).
The faceted sheave allows a loaded sheet to be hand-held, yet still allow instant easing with control.
The crew can hand-hold main, jib, and spinnaker sheets with only a faction of the effort that a regular block requires.
Standard Holding Power - 10:1
Standard Holding Power sheaves are black anodised for identification:
Holding power varies according to sheave size and type.
40mm and 57 mm Ratchamatic blocks with eight-sided faceted sheaves can provide up to 10:1 holding power.
You can look at this in two different ways:
- The crew can withstand 10 times more load than on a normal block without the sail winning :-)
- The crew will only need 10% of the effort to withstand the same load on a normal block (10kg of force requires only 1kg holding power)
Harken Ratchamatic Block Design and Construction features:
- Super lightweight parts
- Composite fibre-reinforced sideplates
- Hardcoat anodised aluminium sheave
- Lightweight soft-attach method
- Minimal moving parts in the ratcheting mechanism
Harken T2 Carbo Ratchamatic Plus Factors:
- Lashing allows ratchet adjustment close to the deck
- Splicing with a large diameter line uses the tail to fasten the block at the height needed for a fairlead
- Pressure on the line engages the ratchet mechanism, which switches seamlessly from free running to ratchet mode
- Unloaded main and jib sheets run out freely during mark roundings and asymmetrical spinnaker sheets become free to run instantly during gybes
- T2 ratchamatic blocks are clearly labelled with high contrast directional markers for correct reeving and trimming direction
- A becket can be formed by passing the line through the mouth of the block and making two becket loops, detailed instructions come with the block
| Harken | Block | Holding Power | Break Load | Maximum Line Diameter | Weight | Harken |
|---|---|---|---|---|---|---|
| 2159 | 40mm Carbo Ratchamatic - T2 Soft-attach | 10:1 | 454kg | 10mm | 25g | 2159 |
| 2160 | 57mm Carbo Ratchamatic - T2 Soft-attach | 10:1 | 907kg | 10mm | 71g | 2160 |