Harken ESP (Elegant Simple Products) blocks complement other Harken blocks in looks and function, and are simpler in design and construction, making them ideal for halyard or limited purchase systems on cruising boats or for production boats with mounting posts on the mast collar.
Deck organizers lead halyards and control lines aft, allowing crew to sail from the security of the cockpit. They lead a large number of lines through a small space.
Match Cruising ESP mastbase blocks with organizers for a complete system.
|Breaking Load (lbs)||12000|
|Breaking Load (kg)||5442|
|Fasteners (in)||3/8 (10mm) Round Head Fasteners|
|Height (in)||1 1/16|
|Hole Spacing (in)||3-5/32|
|Hole Spacing (mm)||80|
|Max Line Size (in)||5/8|
|Max Line Size (mm)||16|
|Note 1||# of Fasteners = # of Sheaves|
|Safe Working Load (lbs)||6000|
|Safe Working Load (kg)||2721|
|Sheave Diameter (in)||2-1/4|
|Sheave Diameter (mm)||57|
|Sheave SWL (lb)||2500|
|Sheave SWL (kg)||1134|