Harken 57 mm Triple Ratchamatic® Block -
Swivel, Cam Cleat, 40 mm Block
The Carbo Ratchamatic is a
load-sensing ratchet block that rolls freely in both directions under
low loads automatically engages the ratchet as loads increase. Shifting
between ratchet and light-air modes is seamless.
Unloaded main and jib sheets run freely
during mark roundings as asymmetrical spinnakers free instantly during
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.
Main / Jib sheets,
Sheave: 57 mm
Length: 156 mm
Weight*: 520 g
Shackle pin dia.: 6 mm
Max line: 10 mm
Max working load: 816 kg
Breaking load: 2041 kg
Includes RH fasteners and mounting pad.
Maximum working loads and breaking loads for
blocks based on cam strengths.