Booms with a strong profile

Gooseneck The gooseneck fitting on the boom contains the sheaves for the upper lines for the Single Line Reef and the sheav-es for the reefing winch and cockpit lines. All lower lines can be held by rope stoppers. Large openings facil-
itate line replacement and maintenance. The rope stop-
pers are spring loaded in both open and closed position. Specially rounded jaws hold the lower lines securely
with minimum chafe. Every stopper is colour-coded to match the relevant line. A perfect end Seldén booms have a wealth of sophisticated features and can be equipped with a variety of reefing systems
to marine suit different boats and the needs of different sailors.
The booms can be fitted for traditional slab reefing or
Single Line Reef, or be used for furling masts. The boom
extrusions are relatively deep in relation to their width,
allowing a lighter extrusion with high resistance to
vertical bending. This makes them perfect for use with
modern, stiff sailcloth and efficient Rodkicker rigid
vangs. The boom end is gently rounded. It is fastened with screws and is open at the back to facilitate maintenance and line replacement. It comes with a cast preventer bracket, a topping lift eye and numbered line compart-ments. Seldén Match Racing boom Developed jointly with sailors and designers in the Swedish Match Tour. Deep boom profile for maximum vertical stiffness. This retains sail trim,
even at very high kicker and sheet loads.

Gooseneck.

Seldén Match Racing boom

Boom section I
y I
x Wall Weight W
y min W
x min Sail groove dim., mm thickness kg/m mm height/width cm Boom section I
y I
x Wall Weight W
y min W
x min Sail groove dim., mm thickness kg/m mm height/width cm
4 cm
4 mm cm
3 cm
3 86/59 58.9 23.6 1.8 1.75 12.9 8.0 4 ±1.0 120/62 155 42.5 1.8 2.12 24.8 13.7 5.5 ±0.75 135/71 265 70 2.0-2.8 2.66 39 19.5 5.8 ±0.75
152/82 433 126 2.5-2.9 3.59 54.2 30.4 5.8 ±0.75
171/94 726 189 2.3-3.2 4.66 80.5 41.2 5.5 ±0.75
200/117 1280 343 3.1 5.88 121.5 61.3 6.25 ±0.75
250/140 2706 692 3.2 7.95 200.1 101.3 6.25 ±0.75
300/155 5086 1291 4.0 10.50 321 167 6.25 ±0.75 4 cm
4 mm cm
3 cm
3 190/60 732 94 2.5-3.5 4.86 74 31 5.5 ±0.75 230/70 1399 176 2.7-3.6 6.53 117.8 50.5 6.25 ±0.75 XY XY XY

7071