39
(400)
(401)
(385)
(386)
System
332
Two-Speed 
Mainsheet Systems
Harken gross-trim/fine-tune mainsheet systems are 
easy to install and use. These optimized systems decrease overall line 
clutter because they use less line than traditional gross-trim/fine-tune 
systems. For fast trimming, pull both tails of the mainsheet. To fine-tune 
or to trim using a higher purchase, pull a single tail.
Two-speed mainsheet systems come in three configurations for boats 
from 6.5 m to 11.8 m (22 - 39'), with mains as large as 32.4 m2 (350 ft2).
Components
Systems
System
383
*Line not included.
Part
No.
Description
Sheave Ø
Length
Weight
Primary
Secondary
in
mm
in
mm
in
mm
oz
g
 385 
 Double fiddle 
 3 
 76 
 1 3/4 
 44 
 7 3/4 
 197 
 21 
 595 
 386 
 Double fiddle/ratchet/cross block/412 Cam-Matic 
 3 
 76 
 2 1/4, 1 3/4 
 57, 44 
 11 1/2 
 292 
 37 
 1049 
 400 
 Double/cross block 
 3 
 76 
 2 1/4 
 57 
 9 1/2 
 241 
 22 
 625 
 401 
 Double fiddle/ratchet/412 Cam-Matic 
 3 
 76 
 1 3/4 
 44 
 7 1/4 
 184 
 31 
 885 
Part
No.
Description
Line Ø
Max mainsail area
Min
Max
End-boom
Mid-boom
in
mm
in
mm
ft2
m2
ft2
m2
 332 
 3:1/6:1 self-contained system* 
 5/16 
 8 
 3/8 
 10 
 240 
 22.3 
 180 
 16.9 
 383 
 4:1/8:1 self-contained system* 
 5/16 
 8 
 3/8 
 10 
 350 
 32.4 
 275 
 25.5 

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