TABLE FOR CHOOSING SPROCKET SIZE RELATIVE TO QUADRANT RADIUS


Sprocket size versus turns HO / HO for 72 rudder travel
Quadrant
radius (mm)
5/8"P
11T
5/8"P
13T
5/8"P
15T
5/8"P
17T
5/8"P
19T
Cable
travel (mm)
150 1.06 0.90 0.79 - - 189
200 1.43 1.21 1.05 0.93 0.83 251
250 1.78 1.51 1.31 1.16 1.03 314
300 2.13 1.81 1.57 1.39 1.24 377
350 2.49 2.11 1.83 1.62 1.45 440
400 2.85 2.41 2.09 1.85 1.66 503
450 3.20 2.71 2.35 2.08 1.86 566