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Marine Applications

For Dinghies and Small Cruisers

You can also download Installation Drawings in PDF format.

CL253 Trapeze & Vang cleat
CL704 Racing Junior Mk1 with Becket
Mainsail Halyard cleats
Sail Controls
Rig Controls
Rudders, Centreboards & Centreplates
Topper Racing Upgrade
Cleats for Inflatables
Slab Reefing

CL253 Trapeze & Vang cleat


Using a CL253 Trapeze & Vang cleat is a quick, easy and secure way to apply tension to the forestay, here on a una-rigged single-hander.

Another interesting way to use a CL253 Trapeze & Vang cleat: to lead the clewouthaul out of the boom as well as cleating it. Only a small slot need be cut in the boom for the integral sheave.

Here we see a CL253 Trapeze & Vang cleat used to tension the mainsail luff and another used as a simple kicking strap or boom vang.

Mainsail foot tension is adjusted using a CL253 Trapeze & Vang cleat on the outboard end of the boom on a small cruiser.

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CL704 Racing Junior Mk1 with Becket


Catamaran mast rotation is adjusted and controlled using two CL704 Racing Junior Mk1s with Becket. Mast rotation can be adjusted and then locked in position.

Extra power for control lines is provided by using CL704 Racing Junior Mk1s with Becket to fasten-off the line holding the pulley nearest the cleat.

Extra purchase for a Cunningham hole is provided by using a CL704 Racing Junior Mk1 with Becket. A figure of eight knot is tied in one end of the control line passed through the becket in the CL704 Racing Junior Mk1 with Becket, through the pulley block and back to the cleat. The line from the pulley block through the Cunningham eye is tied off to the gooseneck.

On this Optimist the spirit is controlled by a low-stretch line running from a CL704 Racing Junior with Becket through the block on the end of the wire strop and back to the cleat. The CL261 Tug Cleat will double your pulling power without pain when tensioning the rig.

Controlling the centreplate of a cruising dinghy or dayboat is made easier by adding an extra purchase. The purchase is provided by using a CL704 Racing Junior Mk1 with Becket to fasten-off and cleat the final control line.

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Mainsail Halyard cleats


To hoist the mainsail, lead the halyard through the CL217 Mk1 Side Entry cleat and then pull it through the pulley block. Each time the halyard is released - before being pulled again - it will cleat automatically, stopping the sail from sliding down the mast.

The load on a highly-stressed main halyard can be spread by using a pair of CL222 Racing Minis. The rope mast bend control uses a CL211 Mk2 Racing Junior and a turning block.

A 2:1 luff tensioner using a CL211 Mk2 S2 hard anodised Racing Junior with Becket, and a CL211 MK2 hard anondised Racing Junior for the sprit tensioner line. Using the Racing Junior with Becket eliminates the need for extra fastenings and holes in the mast for a fitting to fasten the standing end of the line to.

Another use for a CL236 Roller Fairlead Mk1 Racing Junior on a Topper single-hander. The positive cleating action of the Racing Junior means that the tension on the sail luff will not slip during a sail or a race.

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Sail Controls


A low profile and smooth CL233 Sail Line Cleat is used to adjust and maintain jib luff tension. The forestay is fastened with a simple lashing.

A CL253 Trapeze and Vang Cleat can be used for quick and easy adjustment of forestay tension.

The jib sheet adjustment on the Dart Hawk is innovative, using two CL211 Mk1 Racing Cleats with Fairlead for adjustment fore and aft and sideways. The cleat used for sideways adjustment is held in place by the control line.

A CL236 Roller Fairlead Mk1 Racing Junior is used to control jib sheeting angle and jib leech tension on a Cherub. An efficient and simple system.

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Rig controls


A CL255 Omega cleat provides positive, non slip adjustment for the jib halyard control. This cleat works in the reverse direction to other Clamcleat products: in this application the halyard will always lie in the teeth of the cleat and so the rope cannot be released accidentally.

A CL211 Mk2 Racing Junior provides quick and positive adjustment to the purchase system that controls the height of the jib fairlead on a Fireball.

The slim shape of the well-proven CL211 Mk1 Racing Junior cleat lends itself to stacking a number of cleats together, here in a neat angled recess in the thwart of the MRX prototype dinghy.

The new 59er, designed by Frank Bethwaite and now in production, uses a pair of CL211 MK1 hard anodised Racing Junior cleats, on either side of the boat, for rig control and adjustment by the crew. The cleats are installed in a neat moulded-in recess for optimum performance and minimum inconvenience to the crew.

The Rondar 505 has a complex and fully adjustable mainsheet strop system that uses a pair of CL211 Mk2AN Racing Juniors to adjust the height of the lower mainsheet block. The Racing Junior provides fast and positive adjustment with no fear of the control line slipping.

Like all alloy cleats, the CL241 has the strength to hold small, heavily loaded ropes and halyards without slipping. The CL241 also has the benefit of a very low, smooth profile so that other lines are unlikely to get caught on it.

The top of the centreboard case is ideal for siting rig controls. Here there are two angled CL211 Mk1 Racing cleats and a pair of CL255 Omega cleats which cleat upwards as opposed to downwards as with most other Clamcleat products.

This racing dinghy is fitted with adjustable shrouds. The travellers are controlled using CL236 Racing Cleats with Roller Fairleads.

Flogging jibs sheets can make moving a loaded genoa car a hazardous operation.
A better way is to -
  1. Attach one end of short length of line to the genoa car and the other to a CL234 Large Loop Cleat. When not in use, the line can be wrapped around the base of the genoa car.
  2. Unwrap the cleat from the Genoa car.
  3. Attach the cleat to the loaded sheet, lift the pin on the car and then slacken off the winch end of the sheet.
  4. Easing or pulling on the sheet will allow the car to move in the direction desired.
Lock the car in the new position, re-tension the sheet, remove the cleat from the sheet, stow cleat and the line tidily ready for use the next time an adjustment has to be made.

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Rudders, Centreboards and Centreplates


Tying a loop of shockcord around the end of the tiller will keep the rudder downhaul line tidy and within reach if the CL257 Auto-Release cleat is released.

A simple tiller lock/self-steering system using a pair of CL702 Boom cleats. One side uses heavy shockcord, the other a control line.

The CL257 Auto-Release cleat can be used anywhere automatic release is required. The example here is using the cleat to prevent a centreplate from crashing back into the case if the boat turns over. Although the 'plate is held down, the CL257 will release if the 'plate hits the bottom hard.

A CL218 Mk1 Side Entry cleat provides control for a continuous control line which either locks the rudder blade down, when sailing, or holds it up when launching the boat.
A simple mainsheet strop can be adjusted using a CL211 Mk2 Racing Junior cleat. The standing end has a loop through which the adjustable end is passed. What could be simpler?

Both the uphaul and downhaul on this centre board system are led to the side decks and can be cleated. The 'up' rope is cleated using a CL217 Mk2 Side Entry cleat, when launching for example. The 'down' side is cleated by a CL257 Auto-release cleat so that if the centreboard grounds or hits an obstacle, it can still pop up to prevent damage but it will not come up due to to the force of water against it.

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Topper Racing Upgrade

Use the CL253 for a Luff terminator with 3:1 advantage. (Kicking strap omitted for clarity) Use the CL253 for the kicking strap or boom rang. (Luff tensioner omitted for clarity) The mainsheet horse "performance pack" on the popular Topper dinghy uses a CL236 Roller Fairlead Racing Junior cleat to provide an extra purchase to make a system that is more powerful and easier to adjust.

Sailing Solutions offer a number of different options for Race Kits.
www.sailing-solutions.co.uk

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Cleats for Inflatables

A mooring bollard on the bow of a RIB which incorporates a CL201 Vertical cleat. The mooring line is turned round the moulded "horned bollard" before it is dropped into the cleat where it is held fast. Other cleats that could be used are the CL208 & CL210. This method is used by Valiant.

The Tinker uses a CL223 Loop Cleat to tension the shrouds quickly and easily, when being converted into a sailboat.


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Slab Reefing

Slab reefing is an easy way to reef dinghy sails, here on the Wanderer. The reefing line is cleated under the boom by a pair of CL211 Mk2 hard anodised Racing Junior Cleats. (The kicking strap has been omitted for clarity.)

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Images by Tim Pegg at Thilmcraft Graphics.    http://www.thilmcraftgraphics.biz


Plastic Moulding British Marine Federation