mainsail blocks

REEF BLOCKS


The blocks are connected to the leech of the mainsail with webbing, and reduce point loading on the mainsail when reefing. The small diameter sheaves are suitable to very high loads.
The center hole can be used as a safety connection to the boom when reefed.
The small version (D=50 mm) is for boats to 50 ft, larger (D=120 mm) for boats to 100 ft.

If a larger sheave is required and if higher weight and larger sizes are acceptable, then the clew blocks described above can be considered.

Mod. 994.075
MODEL Ø LINE
mm		 D
mm		 L
mm		 B
mm		 Z
mm		 SWL
kg		 WEIGHT
kg
994.055 14 50 143 65 20 1500 0.22
994.065 16 60 178 79 20 3000 0.60
994.075 18 70 204 88 25 4500 0.80
994.085 20 80 238 112 35 5500 1.00
994.095 24 100 292 140 45 8000 1.30
994.125 28 120 357 170 60 10000 2.90