b'Ratchamatic Blocks Ratchet orRatchamatic?The Carbo Ratchamatic is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless. Unloaded main and jib sheets run out freely during mark roundings and asymmetrical spinnakers free instantly2625during jibes.2625.RED 2680 Ratchet engagement may be adjusted to a higher or lower load according to strength and sailing style. The Ratchamatic cheek block mounts on either port or starboard. The holding power of the 57 mm is as high as 10:1. The 75 mm is up to 15:1.For the ultimate system, mount a Ratchamatic block onAdjustable ratchet engagement adapts the boom above a cockpit-mounted switchable ratchet toblock to a variety of applications.allow the mainsheet to run freely in light air and to double holding power in heavy air.Use the 2634 with a 402 or 403 swivel arm for a versatile2628two-speed mainsheet system. 2684 About Carbo Air blocks: see feature page at beginning of this section.Eight-faceted, Hard Lube-anodized2626.RED 2626 aluminum sheave holds line securely.2681 All 57 mm and 75 mm Ratchamatic 2627 blocks are also available with Power3 2683 sheaves which offer holding power options suitable for a variety of wind conditions. In addition, all 57 mm Ratchamatic blocks can be made with HTE (high threshold engage) sheaves to delay ratchet engagement, allowing them to run freely more of the time. 2633 Contact Harken for more information.2682 DN iceboatMarcella GrunertSheave Shackle pin Max line Maximum Breaking Holding powerLength Weightworking load load w/180 wrap Part No.Description in mm in mm oz g in mm in mm lb kg lb kg 50 lb (23 kg) 57 mm2625 / .RED Single2 1/4574 1/161033.71043/163/810500227200090710:1 5 2626 / .RED Single/becket2 1/4574 15/1612541133/163/810500227200090710:1 5 2627Single/150 Cam-Matic**2 1/4574 1/161039.42663/1653/81030013675034010:1 2628Single/150 Cam-Matic/becket**2 1/4574 15/161259.72753/1653/810600272150068010:1 2633Cheek*2 1/4573 1/4833.1893/810500227200090710:175 mm2680Single2 15/16755 3/81378.42381/467/16127503413000136115:16 2681Single/becket2 15/16756 1/216592551/47/16127503413000136115:1 2682Cheek*2 15/16754 1/161036.51847/16127503413000136115:12683Single/150 Cam-Matic**2 15/16755 7/1613815.54401/467/161230013675034015:12684Single/150 Cam-Matic/becket**2 15/16756 1/216515.54401/467/1612600272150068015:1*Includes RH fasteners and mounting pad.**Maximum working loads and breaking loads for blocks based on cam strengths.27'