Index | Wire | 16mm | Micro | Bullet | Big Bullet | Dinghy | 2.25'' | 3.00'' | Little Hexaratchet | Hexaratchet II+2 | Fiddle | 2.25''/3.00'' Hexa-Cat Bases | Low Profile Triples | Two Speed Mainsheet Systems | Dinghy Vang

Small boat blocks > Two Speed Mainsheet Systems

Gross-trim/fine-tune mainsheet systems are easy to install and use. For fast trimming pull both tails of the mainsheet. For more power, pull one tail and the purchase doubles.

Two speed mainsheet systems come in three configurations for boats from 22' to 35' (6.5 m to 10.5 m) with mains as large as 240 ft² (22.3 m²).

Use for:

Mainsheet

System 330

System 331

System 332

Systems

Part No.	Description	Line				Max mainail area
		Max		Min		End Boom		Mid Boom
		in	mm	in	mm	ft2	m2	ft2	m2
330	2:1/4:1 Self Contained	3/8	10	5/16	8	150	13.9	115	10.7
331	2:1/4:1 Swivel Base	3/8	10	5/16	8	150	13.9	115	10.7
332	3:1/6:1 Self Contained	3/8	10	5/16	8	240	22.3	180	16.9

* - Line not included

Components

Part No.	Description	Sheave				Length		Weight
		Primary		Secondary
		in	mm	in	mm	in	mm	oz	g
397	Double ratchet	21/4	57	—	—	41/8	105	10	284
398	Cross block/ ratchet/412 Cam-Matic®	21/4	57	13/4	44	71/8	181	20	575
400	Double/ cross block	3	76	21/4	57	91/2	241	22	625
401	Double ratchet/ fiddle/ 412 Cam-Matic®	3	76	13/4	44	71/4	184	31	885
402	Small swivel base/ 412 Cam-Matic®*	—	—	—	—	—	—	14	405

* - Accepts 397

Index | Wire | 16mm | Micro | Bullet | Big Bullet | Dinghy | 2.25'' | 3.00'' | Little Hexaratchet | Hexaratchet II+2 | Fiddle | 2.25''/3.00'' Hexa-Cat Bases | Low Profile Triples | Two Speed Mainsheet Systems | Dinghy Vang