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 instantly during jibes.
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.
For the ultimate system, mount a Ratchamatic® on the boom above a cockpit-mounted switchable ratchet to allow the mainsheet to run freely in light air and to double holding power in heavy air.
Use for:
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Main/Jib Sheets
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Asymmetric spinnakers
Specifications:
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Sheave Ø (mm) – 57 mm
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Length (mm) – 103 mm
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Weight (g) – 104 g
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Shackle pin Ø (mm) – 5 mm
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Maximum line Ø (mm) – 10 mm
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Maximum working load (kg) – 227 kg
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Breaking load (kg) – 907 kg
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Holding power w/180 degree wrap 50 lb (23 kg) – 10:1




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