Load-sensing ratchet block
Harken's high-load Flip-Flop Block has a low profile, lightweight pivoting lead that articulates from side to side. Its hinged construction allows for various lead angles in mainsheet systems, mast-base control lines and spinnaker halyards, keeping lines clean and close to the deck. Ratchamatic feature gives sailors the holding power of up to 15:1. Ratchet can be adjusted to higher or lower load depending on the sailor's strength, sailing style and system usage.
The Ratchamatic Flip-Flop is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase.
|Diameter||3/8 Inch or 10 mm|
|Integral Cleat||Integral Cam|
|Mount Type||Mechanical Fasteners|
|Safe Working Load||300 Pounds|
|Sheave Diameter||57 mm|
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Reviewed by 1 customer
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Comments about 57mm Carbo Ratchamatic Blocks:
I am a 46 female novice racing an MC Scow. This block has made sheeting in and holding my main so much easier! My arms used to ache after racing. Now I am able to now get my blocks to meet without straining. I only wish that the swivel lock would stay locked. I currently have it aft, with the mainsheet directed down to a lower block. Perhaps if I rotated the swivel, the main wouldn't contact it as much and inadvertently unlock it. None the less, I still wouldn't change it out...I love this ratchamatic!