b'Teardrop Blocks 3223Teardrop blocks are ideal as masthead leads and in other applications where3240limited articulation or direct attachment is desired. When attached to a compatible3253padeye, teardrop blocks will not hit the deck when lines are slack, but allow enough movement to ensure fairleads when jumping halyards. They are often used on perma-nent backstays of fractionally rigged boats where the backstay can be spliced directly to the head of the block.About Black Magic Air blocks: see feature pages at beginning of this section.Sheave Clevis pin Max line Maximum BreakingPartLength Weight working load load UseNo. Description in mm in mm oz g in mm in mm lb kg lb kg padeye57 mm3223Padeye/high-load2 1/4573 3/8863.921115/1683/810250011345000226862775 mm3240Padeye2 15/16754 7/161138.723/89/16142268100004536648/689 247105000 100 mm5 13/1612.7 3253Padeye3 15/16100148164541/25/81675003402150006804 Footblocks 3220 3222Use footblocks to redirect lines on the3234 3235deck. Footblocks with lockoffs tempo- 3249 3250 3236rarily secure sheets. 3257 32583263Either metric or imperial flathead fasteners may be used for mountingF Cand are not exposed. G B AAbout Black Magic Air blocks: see feature pages at beginning of this section.3237E DDimensionsPart A B C D E F GNo. in mm in mm in mm in mm in mm in mm in mm3220 /3221/3222 3/89.57/822.52 1/3251.55/8162 5/16593 5/16841/2133234 /3235/3236/3237 15/3211.51 1/828.52 3/470.5213774 5/1611021/3217 13/16 14.5 3249 /3250 9/161 15/3237.53 21/3292.51 3/32283 15/161005 5/814329/3223 3257/ 3258 21/321 25/32454 7/161131 11/3234.55 1/32127.56 29/321 3/3228 17176 326313/162 3/3253.55 3/321291 5/8416 1/161548 1/322041 5/1633 20.5 Sheave Max line Maximum Breaking FastenersPartLength Height Weightworking load load (FH)No. Description in mm in mm in mm oz g in mm lb kg lb kg pul mm57 mm122124 x 1/44 x 6 3220Single/high-load2 1/4573 5/16841254.297/162500113450002268 3222Double/high-load2 1/4573 5/16841 13/16462157/16121655750331015004 x 1/44 x 6 7.6 75 mm3234Single2 15/16754 3/81111 1/4329/1614525023801050047624 x 5/164 x 8 9.76277 3235Double2 15/16754 3/82 1/45717.284909/161434651572693031434 x 5/164 x 8 111 2 15/16 3236Single/lockoff*754 3/81111 1/43211.283209/1614525023801050047624 x 5/164 x 8 3237Double/lockoff*2 15/16754 3/81112 1/45720.241434651572693031434 x 5/164 x 8 5749/16 100 mm3249Single3 15/161005 5/81431 5/163319.575555/816750034021500068044 x 3/84 x 103250Double3 15/165 5/81432 7/166234.19675/81649502250990045004 x 3/84 x 10 100125 mm 3257Single4 15/161256 15/161761 11/164334.293/41100049902200099794 x 1/24 x 12 97219 3258Double4 15/161256 15/161762 13/1671.560.3517113/419726032921452065854 x 1/24 x 12150 mm3263Single5 15/161508 1/162051 7/84858.58166112515000680430000136084 x 5/84 x 16*Lockoffs are intended to hold lines temporarily and should not be used in place of line stoppers or clutches.58'