
America's Cup Photos: Bob Grieser
Worrell Photos: Gary John Norman
Ladd 53 Photos: Patrick Parsons
Pacific Seacraft Photos: Brownie Lewis
products
PRODUCT CATALOG
compu-spec
Find the right Blocks for your boat
new products
Midyear New Products
brochures 57 mm Flip Flop Blocks
service
Installation Manuals
Midrange Use Chart
Big Boat Use Chart
Block Loading vs Angle of Deflection
Rig Dimensions
Rigging Breaking Loads
Stand-up & Footblock Dimensions
Mainsheet System Loading
Mainsheet Loading Calculator
Drilling Guide
Fastener Guide
Fastener Types
Metric Conversions
Weight Calculator
Area Calculator
Length Calculator
Speed Calculator
Temperature Calculator
Limited Warranty
Maintenance
contact
Email: technicalservice@harken.com
Phone Technical Service: 262-691-3320
Monday through Friday 7:30 am to 4:30 pm CST
q & a
Carbo Blocks
Classic Blocks
Ratchet Blocks
Big Boat Blocks
articles
Rigging—Danilo Fabbroni
Ratchet Overview: Ideas that Click
Mechanical Advantage: 6:1 & 8:1
4:1 Mainsheet for Hobie Wave 13