Green Line performance booms are made of high quality, durable T8 alloy. Grip diameter is 29mm. It guarantees tight and good connection to the mast, solid, strong grip and durability. Offers high quality at affordable price. Each length size of Green Line has different shape to accommodate perfectly various sizes of sails. The longer the boom, the wider the bend, that gives great balance. Tubes are made in monocoque technology, which they are made from one piece tube. It greatly increases stiffness and durability in every conditions.

Double push pin operating system provides strength, durability, easy adjustment of the length and stiffness even in a maximum span. Greenline booms are very efficient and ensure good performance. New grip is very solid and strong and additionally give you a great feeling of the rig. Thanks to rotational boom head the strains on boom and mast are reduced to minimum.

Features

• Grip diameter 29mm
  Grip diameter is equal to 29mm. It ensures solid and strong grip on the boom. It gives you full control over the sails, comfortable and easy steering in every conditions.
• Harness lines indicators
  Special indicators on the boom which are in close gaps between each other give you easy, fast and precise setup of harness lines on both sides of the boom. It makes adjusting your harness lines to the perfect position effortless.
• Double push pin operating system
  Length adjustment clap is based on a double push pin. This system ensures solid, strong and stiff boom connection. It influences the comfort of sailing and performance of the entire set.
• Rubbery pad inside boom head
  Thanks to inner, rubbery pad the durability of the boom and comfort is greatly increased as it absorbs vibrations and reduces them to absolute minimum. Additionally, it protects the mast.
• Monocoque Technology
  Gaastra booms are made in monocoque technology, it means that they have been bent from one piece tube. It makes it much stiffer and bents less under pressure. It enhances the durability and overall stiffness.
• Boom length adjustment
  Gaastra booms come with length adjustment of 50cm with 2cm gaps between indicators. It ensures the perfect length adjustment to sail’s size and gives you option to fast and easy adjust it with strong double push pin closure.
• RDM mast adapter in 140-190cm and 160-210cm booms
  Two smaller sizes of Gaastra Greenline boom features additional adapter (removable) which allows you to put the boom on RDM mast. For bigger size boom the adapter is sold separately.
• Loop-Loop-Go System
  Ensures fast and easy sail trim on the boom. You only need to put the loop through the eyelet in the sail and secure it on the plastic part on the nock, trim the sail and block the line on the cleat. Available in 140-190cm and 160-210cm.
• Sail trim in the pulley system
  Bigger Gaastra booms (180-230cm and 200-250cm) are equipped with pulley trim system integrated with boom’s nock. To trim the sail put the line through eyelet in the sail and through the pulleys, then trim your sail and block the line on the cleat. It is proven system to trim bigger sail sizes and race sails.