Boom Section/thickness

[syreetanajera]

What is the preferred boom section? The rules state 1.5, 2, & 3 mm wall thickness are allowed. This gives quite a range of weight to length of aluminium tube required (1.3, 1.7, & 2.5 kg respectively).

[heymacaulay]

Andrew,

The problem with a Sabre is not so much the thickness and final weight. You need to find a 50mm section that is of a grade of aluminium that will not bend in a good blow.

I saw a number of nicely bent booms at the last Vic states. This is the draw back of having a loose footed rig with the mainsheet near the centre of the boom.

Not sure where you are, but there is a mob in Moorabbin (Vic) – Litespars I think they are called, who supplies the section in higher tensile strenght grades of aluminium than what most of the chandlerys do. More expensive though. My wife has bent two booms of cheaper grade sections in her various boats.

Not sure what grade of aluminium the Association supplied sections are.

Regards . . .

[Paul Matthews]

hi,
i havr a mast top section and boom leftover frm my ‘jaunt’ with lasers!
would they be good to convert to sabre booms?
devil woman

[heymacaulay]

As long as it is of size, 50mm it believe, not sure of the tollerences it should be good.

Regards . . .

[Author]

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