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Furling boom

Furling mainsail ... yes, but in the boom!

If you are sailing single-handedly or with an inexperienced crew onboard, or just enjoy short sailing trips, this system will be a welcome change from the backbreaking balancing act on the coach roof.

  • No more obstinate sail slugs in the mast groove.
  • No more raising the sail whilst trying to hold on at the same time.
  • No more sail webbing. 
  • No more mainsails blocking the view during harbour manoeuvres.

The system is pretty straightforward. It simply consists of a boom with an inner roll mechanism.

The concept of furling the sail is not new. For generations the sail has been furled around the actual boom. We have simply "reinvented" the method so that the sail is furled inside the boom and developed it so that neither height nor speed is lost.

In addition to making sailing a safer, easier and more comfortable experience, the system also helps to prolong the life of your mainsail.

When the sail is furled inside the boom, this provides effective protection against both sunlight and saltwater.

Furthermore the sail cloth is not subject to the same wear and tear as it is when raising, lowering, reefing or folding the sail in the "old-fashioned" way.



  In-Mast furling In-boom furling
DIY assembly/refitting
  No Yes
Controlled from cockpit
  Yes Yes
New mainsail
  Yes Yes
Horizontal sail batten
  No Yes
Sail efficiency - unfurled
  Poor Good
Sail efficiency- reefed
  Poor Good
Same sail area
  No Yes
Regatta
  No Yes
If the system becomes jammed
  The sail cannot be lowered The sail can always be lowered
Advantages
  Simple unfurling Max. Sailing qualities

Low weight in rigging

Large sail
Disadvantages
  Extremely heavy weight in mast = poor stability Setting sail is the same as with standard mast
Price
  New mast New bom

The HI-LOW reefer reefer differs from other sail furling systems, which furl the mainsail into the actual mast, on a couple of significant points.

As opposed to the in-mast furling systems, a low centre of gravity is maintained which is essential for a boat to sail well.

Secondly, the HI-LOW reefer reefer does not mean changes in sail area - the same area is maintained and with it the same sailing qualities to work with.

It simply needs to be fitted with full-batten, though of course it is ideal if you are on the point of changing your mainsail.

Furthermore a sail fitted to a furling boom, can always be lowered in the old-fashioned way, whereas if a furling mast fails, it is difficult to lower or reef the sail in a critical situation.

By virtue of the simple, yet ingenious design, the system can be easily fitted by most. If you have both hands screwed on properly, the fitting of the HI-LOW reefer reefer should not present too great a challenge.

Armed with a drill, riveter, a screwdriver and an adjustable spanner, the system can be fitted within the space of a few hours - and without having to dismantle the mast, we might add.

If you would prefer to have the system fitted by a professional, this can, of course, be arranged. HI-LOW reefer reefer can be fitted to most sailboats from 20 to 50 feet and is also suitable for boats with 7/8 rig - a furling boom will always be safe.

 

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The mainsail is easily retrieved and reefed - even under the most difficult conditions

  The built-in gasspring in the kickrod ensures that the boom is lifted to the optimal angle when the sheet is slackned.

The foot of the sail can be stretched using the adjusting screw on the end of the boom.



The tapered sail cloth rail is fitted directly into the existing mast groove.