Wichard 70mm Single Block with Swivel & Clevis Select (See Table Below):WB-75109 70MM B/B BLK: SNGL SWV CLEVIS - EACH Manufacturer Part Number: R7101

Manufacturer Part Number: R7101

This would mean the boom position may not be correct but will allow you to measure the downward force required (with sail flaked) on the aft end of the boom to flex the rods

3-4 (18 months)

3 Adjustable swing arms

Wichard 70mm Single Block with Swivel & Clevis Select (See Table Below):WB-75109 70MM B/B BLK: SNGL SWV CLEVIS - EACH Manufacturer Part Number: R710170mm Single block with swivel head and clevis pin. Plain and Ball Bearing available. Sheave Diameter 70mm rope size 14mm forged shackle 8mm Forged S S Wichard shackle large choice of fastenings: ring, snap hook etc, Protective cheeks increase sheave lifespan, Universal head that can be locked in position, Swivel for rotating and changing fastenings, Stainless steel load straps, Stainless steel pin, Stainless steel bush ensures rotation under heavy