Index | Use chart | 57 mm | 75 mm | 100 mm | 125 mm & 150 mm | Teardrop | Crossover | Mastbase Halyard Lead & Flip-Flop | Footblocks | AirRunners | Stainless Steel Runners | Opening Foot Blocks | Snatch | ESP Blocks | Stainless Steel ESP | Stainless Steel Blocks | Specifications

Big Boat blocks > Opening Footblocks

Opening foot blocks feature a spring loaded back for fast one-hand sheet changes. Housings are hard anodized aluminum, and the large diameter sheaves protect sheets and reduce friction. Opening foot blocks can be dismantled while attached to the deck.

Use on boats from 20' - 50' (6 - 15 m).

Use for:

Genoas

B3113

Large diameter sheaves Stainless steel ball bearings Spring loaded opening back Hard anodized aluminum housing

B2113

B2114

B3114

Part No.

Description

Sheave

Length

Height

Weight

Max line

Safe working load

Breaking strength

Fasteners (FH)

in

mm

in

mm

in

mm

oz

9

in

mm

Ib

kfl

Ib

kg

in

mm

B2113

Single

315/16

100

51/2

140

113/16

46

331/2

950

9/16

14

4409

2000

8818

4000

3 x 5/16

3x8

B2114

Double

315/16

100

51/2

140

213/16

72

471/2

1347

9/16

14

4409

2000

8818

4000

3 x 5/16

3x8

B3113

Single

415/16

125

611/16

170

115/16

50

51

1446

9/16

16

8377

3800

16755

7600

3 x 3/8

3x10

B3114

Double

415/16

125

611/16

170

31/8

80

78

2213

9/16

16

8377

3800

16755

7600

3 x 3/8

3x10

Index | Use chart | 57 mm | 75 mm | 100 mm | 125 mm & 150 mm | Teardrop | Crossover | Mastbase Halyard Lead & Flip-Flop | Footblocks | AirRunners | Stainless Steel Runners | Opening Foot Blocks | Snatch | ESP Blocks | Stainless Steel ESP | Stainless Steel Blocks | Specifications