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We manufacture alloy booms in six standard section sizes.
Standard Specification - Slab Reefing Booms.
Front end casting: complete with sheaves and jammers to control internally-led reef and outhaul lines. Clevis pin to attach boom to mast gooseneck toggle.
Outhaul casting: complete with sheaves to lead lines inside boom.
Sliders: stainless steel, for kicker/vang, mainsheet and slab reef take-off (These slide in an integral track on the underside of the boom and are left free for accurate fixing by the client)
A special slider is available for use with Z Spars rigid vangs.
Messenger lines are fitted to all made-up booms. (Unless running rigging is specified)
Booms fitted to our furling masts are supplied with a Z Spars track and car fitted for clew outhaul. |
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Technical data:
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BoomSection |
Dimensions>mm |
Inertiae>cm 4 |
WallThicknessmm |
WeightKg/meter |
RopeSizemm |
PinSizemm |
ToggleSizemm |
|---|---|---|---|---|---|---|---|
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Z120 |
71 x 61 |
45 x 24 |
1.5 |
1.2 |
6 |
10 |
18 |
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Z160 |
94 x 68 |
60 x 32 |
1.5 |
1.5 |
8 |
10 |
18 |
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Z204 |
118 x 86 |
125 x 68 |
2.0 |
2.3 |
8 or 10 |
10 |
18 |
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Z360 |
145 x 105 |
380 x 150 |
2.5 |
3.6 |
10 or 12 |
10 |
20 |
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Z480 |
180 x 125 |
750 x 300 |
3.0 |
4.8 |
12 |
10 |
31 |
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Z690 |
232 x 145 |
1660 x 462 |
2.9 |
6.9 |
14 |
14 |
41 |
