Headsail swivel tube

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Headsail boom swivel tube, glass or carbon, for headsail boom swivel line, 6mm ID. Use with fairlead, ref 052-006 and 046B.

Product code. TUBEJ

Availability: In stock


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Headsail swivel tube

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Headsail boom swivel tube, glass or carbon, for headsail boom swivel line, 6mm ID. Use with fairlead, ref. 52-006 drilled out to 2.0 mm ID. The tube is bonded into the foredeck so that the upper end is open and flush with the deck. The lower end is open and flush with the surface of the hull. A piece of wire is bonded across the lower end of the tube.The swivel line is attached to the wire, passes through the fairlead placed in the upper end of the tube to prevent chafing, and is tied to a ring, ref. 46B.

A special fitting for the lower end of this tube allows the ring to be adjusted down until it just clears the deck, ref. LOWER-4TUBEJ. The addition of this fitting to an existing boat is described in the following download.

Downloadable document - pdf

To fit or replace the swivel line through the TUBEJ to the 46B ring, without the lower end fitting, please follow the guide below:

1 & 2      Remove the fairlead 052-006 from the top of the tube. Pass one end of D50 line from the top of the tube through to the bottom. Pass the other end of the line down the tube and ensure it comes out the other side of the wire.

3            Tie an overhand knot in the doubled line close to the wire and pull it tight. Seal the knot with superglue.  Trim off excess line close to the knot to leave 300 mm of line for the swivel.

4  & 5    Pass the line back up the tube, and through the fairlead. Push the fairlead into place.

6            Add the ring to the line as close as possible to the fairlead and tie two half hitches. It helps to pass the line round the ring twice before tying the knot. It also helps to hold the ring with a pair of round nosed pliers or tweezers while pulling the line tight before making the first knot. Seal the knot with a spot of cyanoacrylate glue. The load of the rig will always pull the ring up clear of the fairlead.

Recall notice

The screw part of this product supplied before December 2021 is not as well deburred as our other products designed to take a line and may lead to chafing through of the swivel line. The consequence of this failure when racing is serious. Please check the line on your installation for wear. Ask us to supply a replacement screw part if your line shows signs of wear. Or return your part and we will return it to you after de-burring.


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