Spinnaker Systems

A well-designed system makes all the difference when setting, flying and jibing the spinnaker. Trimming involves three adjustments: raising or lowering the pole, moving the outboard end of the pole forward or aft, and pulling in or easing the sheet.

Typical Boat Length:
Small Boat: 22' - 28' (6.7 - 8.5 m)
Midrange: 29' - 34' (8.8 - 10.4 m)
Big Boat: 35' - 42' (10.7 - 12.8 m)

 

Standard Sheets

Masthead rigs to 28 ft (8.5 m) and fractional rigs to 32 ft (9.7 m) use one pair of lines which lead to turning blocks at the transom. Tweakers bring the guy to the deck near the point of maximum beam to provide additional control over the spinnaker pole. One foreguy line is appropriate for these boats.

spin1,1a.gif
Diagram
Ref.
Description Small Boat
Part No.
Midrange
Part No.
Big Boat
Part No.
A Single 2636 2600  —
B Single 2637 2601  —
C Bullseye 339 237  —
D Single 340 2636  —
E Single 2146 2149  —
F Cam Cleat 468 150  —
G Single 2625 2660  —

 

Standard Sheets & Guys

Offshore boats over 30 ft (9 m) use separate sheets and guys. The sheets lead to turning blocks at the transom, while the guys lead to blocks at the point of maximum beam and then to a winch. A double-ended foreguy adjusts from either side of the boat.

spin2.gif
Diagram
Ref.
Description Small Boat
Part No.
Midrange
Part No.
Big Boat
Part No.
A Single  — 2600 2660
B Single  — 2636 2600
C Bullseye  — 237 237
D Stand-up  — 3227 3244
E Cam cleat  — 150 150
F Single  — 3226 3231

 

Asymetrical on Sprit

Boats with asymmetrical spinnakers and retractable (or removable) bowsprits are rigged with a tack line leading through a block on the end of the sprit, and aft to a cleat or stopper. Two sheets attach to the clew of the sail, with the lazy sheet leading aft ahead of the headstay, over the sprit, and outside the shrouds and sheets.

spin3.gif
Diagram
Ref.
Description Small Boat
Part No.
Midrange
Part No.
Big Boat
Part No.
A Single 2148 2660 3231
B Bullseye 339 237 237
C Cam Cleat 150 150 280
D Single 2680
   
1549 3215
   

 

Continuous Line - Multihulls

Beachcats install two carbo auto ratchets on each side of the boat to manage high spinnaker sheet loads. Use 57 mm ratchets on catamarans up to 20 ft (6 m). Use 75 mm ratchets on multihulls to 30 ft (9 m).

spin4.gif
Diagram
Ref.
Description 8' - 14'
(2.4 - 4.3 m)
15' - 20'
(4.6 - 6 m)
21' - 30'
(6.4 - 9 m)
A Single 2625
2625 2680
B Single 2146 2148 2151

If you would like to link to or reprint this article please contact advertising@harken.com

  • United States
  • Australia
  • France
  • Italia
  • New Zealand
  • Polska
  • Sverige
  • UK