Innovation is the driving force. Chinook’s Triple Clamp Boom Head and unique molding processes are criteria that make our 2007 booms stiffer, stronger, and more user-friendly than any other carbon boom. Other features include external locking pin collars to eliminate twist, a unique clew block for fixed or in-flight adjustable out hauls, and an extra generous extension range. The Formula boom has a wide tail piece and fair leads for in-flight outhaul systems. All bends have been modified to keep up with modern sail design.