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AIR WINCH 500
 Air winch 500 
RC44 © Max Ranchi
Air winch 250
Air winch 550
Air winch 180
Air winch 300
Air winch 600
Air winch 500
Air winch 900
Check out what RC44 trimmers 
say about Air
® Winch 180s
Air Winches
Harken Air winches feature interchangeable gearing sets that give crews the 
flexibility to create a perfect blend of speed and power for each day’s weather 
and crew configuration. The winches, which features a nearly empty middle 
to reduce weight, are designed to be used on Ultims, SailGP foiling cats, 
IMOCA 60s, TP52s, RC44s, and other Grand Prix boats. 
The Air winch’s hollow middle is a first for sailing winches, as are the 
changeable gear kits. All Harken Air winch models feature interchangeable 
first-speed and second-speed options. The wide-diameter drums allow fewer 
wraps, faster trimming, and faster easing. Standard and counter-rotating 
versions are available. The winches have a low-profile design in multiple 
sizes and base designs. 
The 250 and 550 Air winches are exclusively pedestal or handle driven. The 
rest of the models may be driven by pedestal, handle, or powered by electric 
or hydraulic motor.
Product not stocked. Contact Harken to request quote and lead time.
NEW
Gear ratio
Power ratio
1
2
3
1
2
3
1.38:1 6.51:1 17.24:1
4.01:1 18.89:1 50.04:1
 1.34:1  6.40:1  25.42.1 
 3.42:1  16.27:1  64.57:1 
 1.34:1  6.40:1  25.42.1 
 3.42:1  16.27:1  64.57:1 
1.24:1 11.86:1 47.79:1
2.49:1 23.71:1 95.58:1
 1.30:1  10.58:1  47.98:1 
 2.21:1  17.92:1  81.25:1 
 1.30:1  10.58:1  47.98:1 
 2.21:1  17.92:1  81.25:1 
 3.12:1  13.11:1  67.17:1 
 4.34:1  18.25:1  93.48:1 
Part No.
Height
Weight
Line Ø
Line entry
height
Fastener
circle
Fasteners
Ø Drum
Ø Base
Min
Max
in
mm in
mm
in
mm lb
kg
in
mm
in
mm in
mm in
mm mm
Air winch 180 6 7/8
175 9  1/32
229
5 19/32 142 14.1
6.4
3/16 5
3/8 10
1 15/16 50
 Air winch 250  7 7/8 
 200  10 21/32  271  5 3/4  146  16.1  7.3 
 3/16  5 
 3/8  10 
 1 15/16  50 
 
 
 
 Air winch 300  7 7/8 
 200  10 21/32  271 6  1/32 153  17.0  7.7 
 3/16  5 
 3/8  10 
 2 1/4 
 57 
 8 9/32 
 210  5 x M8 
10
254 12 11/16
322
6 23/32171
26.24 11.9 5/16 8
9/16 14
2 7/16
62
10 1/4
260
12 x M8
 Air winch 550  11 13/16  300  14 15/16  380  6 7/8  174  27.3  12.4  1/4 
 6 
 1/2  12 
 2 7/16 
 61 
 
 
 
 Air winch 600  11 13/16  300  14 15/16  380  7 3/16  182  32.6  14.8  1/4 
 6 
 1/2  12 
 2 3/4 
 69 
 12 13/16  325  7 x M10 
 Air winch 900  14 3/8 
 365  18 1/8 
 460  10 1/8  257  70.6  32 
 3/8 
 10 
 7/8  22 
 3 5/8 
 92 
 16 7/16  417  10 x M12 

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