Magic Boxes

Magic boxes are powerful, multipart tackles housed in a compact aluminum extrusion. The box eliminates twists and keeps the line perfectly organized. The secret to the Harken magic box is a patented ball bearing system to Drevent friction between the sheaves and between the sheaves and the axles.

Magic boxes are useful for outhauls, down- hauls, cunninghams, jib halyards, backstays and many other controls which require a power- ful tackle with a limited range of adjustment. They are used on boats from small dinghys to large offshore racers.

Hi-load versions which use Torlon balls are available to increase the working load capability.

Spial FFssdrrss Common SpIIIc8fIm

Ball bearing sheaves Line size - 5/32" (4 mm) Low stretch line Fasteners - $10 (5 mm) Removable beckets Numeric tensioning guide AWitional lnlon111lion - See pages 10 and 11 for an explanation of special features See pages 12 and 13 for suggested uses.

Part ~mriig ~*h. TRnl ~hwo :gL NI. Mamial m, Diomnt~r HOI~ spring E;;": Load ~wakiy mm I

135 'il" (6 mm) diameter stainlw steel S haok for 6 parl magic box.

Allows quick dismnnect of halyards.

136 5s'' (6 mm) diameter stainless steel S hook for 8 oan manic box.

DECK ORGANIZERS

Deck organizers are used when a large number of lines need to be led in a small space. They are often used to run halyards and control lines aft from the mast to winches near the cockpit. Deck organizers are also ideal for many other applications which require multiple sheave cheek blocks.

Small boat deck organizers feature 1%" (38 mm) ball bearing sheaves. They are intended for use on rope halyards on boats under 26 feet 18 m) or for liahtlv loaded control lines on laraer boats. Small boat deck orgaizirs are available in double oririple sheave configurations. Stacked double and triple organizers are used when it is necessary to lead a large number of lines aft in a small area. Spstirl Fwtum Self-contained sheaves Conrnon SpecifiiMtionr Sheave dia - 1%" (38 mm) Compact length Fasteners - #l0 (5 mm) FH Low profile construction Max Max line size workina - W (10 mm) load (Der sheave) - 300 ibs (i36 kg) Breaking Strength - 2000 lbs (907 kg) AWINmI lnlormtio11- See pages 10 and 11 for an explanation of special features. See pages 12 and 13 for suggested uses. 34

270 Double sheave S'As" %" 4'h or 4 1 ~ 7,

129 mm 22 mm 128 g 108 mm x 22 mm

271 Triple sheave 6'%d' %" 6% oz v 7,

173mm 22mm 1849 152mmx22mm

272 Stacked double 5'h~" lslta" 7'h oz 4?* ,v sheave 129 mm 40 mm 191 g 108 mm x 22 mm

273 Stacked triple 6'%d' 1Yd 12% 02 7, sheave 173 mm 40 mm 355 g 152 mm x 22 mm