In co-operation with Marine Products Engineering, Harken offers a pneumatic boom lowering device. This uses only air pressure to push the boom upwards without metal springs. This not only reduces parts and weight, but also enables completely stepless trimming. The resistance can be regulated depending on the boat and wind conditions by inflating or deflating the air. The system should remain smooth-running and squeak-free.
The construction is made of anodised 6061-T6 aluminium, which makes it light and strong. Tubes and end fittings are bolted together, eliminating fasteners and dissimilar metals to prevent corrosion. Harken also offers various replacement parts and also makes it possible to replace the pole and boom fittings with high-quality stainless steel parts.
The tie-downs are also designed to be easy to install. External trim systems are available as options, fitted exclusively with Harken fittings. They are pre-measured, spliced and finished with line specially selected for the application.
The Vang Master series is available in four cylinder diameters, with a choice of eight standard lengths. Size 1 weighs 1.25 kilograms, is 1,016 millimetres long when extended and costs from 1,590 euros. Customised sizes are possible.
Beam downhaulers: alternatives on the market
Smart support: With the Power-Kicker, Cul-Masten from Upper Bavaria has a powerful and visually appealing kicker in its programme. Available in white or visible carbon fibre, the leaf spring develops forces of between 85 and 280 kilograms. Price: from 589 euros. Further information at cul-masten.de
Smart opening:Pauger Carbon Composites also offers a special kicker made of carbon fibre. The adjustable boom support consists of two telescopic parts into which a downhaul buoy is integrated. There is a maintenance opening on one side, which releases the gas pressure spring and the buoy. From 1,310 euros. Further information at paugercarbon.com
Hauke Schmidt
Test & Technology editor
