Wichard Single 1 49/64" (45mm) Block w/ Fixed Eye Lewmar Racing Foot Blocks A- 3/4 inch

A- 3/4 inch

Depth: 1 7/16" (37 mm)

Tapered high cut for action and mobility

Hole Spacing - 70 mm (2 3/4")

one easy method is to weigh the aft end of the boom and compare it to 1/12 the maximum force in the table

Wichard Single 1 49/64" (45mm) Block w/ Fixed Eye Lewmar Racing Foot Blocks A- 3/4 inchProduct Description Wichard Single 1 49 64" (45mm) Block w Fixed Eye Features Weight 2. 9 oz. (82 g) Sheave Diameter 1 49 64" (45mm) Shackle Diameter 13 64" (5mm) Length 3 1 16" (78mm) Width 1 15 16" (49mm) Thickness 1 1 64" (26mm) Working Load 882 Lbs (400 kg) Breaking Load 1980 Lbs (900 kg) Rope Size 13 32" (10mm) Forged Shackle 13 64" (5mm) Applications Mainsheet systems Halyard applications Boom Vangs Downhaul Mast head block Material Grade 316L