Piloting Vessels Fitted With Azimuthing Control Devices (ACD’s)

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Helm Orders A number of azimuthing vessels are fitted with a standard wheel, if so, then if you are inexperienced in using <strong>ACD’s</strong>, it is recommended to use the wheel and give standard helm orders. When berthing/unberthing the units will have to be switched into individual mode. When a wheel is not available then helm orders used are: Steer a course of… Alter course to…when only a few degrees are needed Steady on… When a larger course alteration is required, the following procedure is used: Commence turning vessel to port/starboard (check <strong>ACD’s</strong> are put the correct way) During the turn – increase/maintain/decrease ROT as required. (It is helpful to know the ROT required for a particular turn at a given speed. See ROT table on following page.) 6
SPEED RADIUS OF TURN IN NAUTICAL MILES IN KNOTS 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.85 0.9 1 1.1 1.2 1.3 1.4 1.5 3 28.6 14.3 9.5 7.2 5.7 4.8 4.1 3.6 3.4 3.2 2.9 2.6 2.4 2.2 2.0 1.9 4 38.2 19.1 12.7 9.5 7.6 6.4 5.5 4.8 4.5 4.2 3.8 3.5 3.2 2.9 2.7 2.5 5 47.7 23.9 15.9 11.9 9.5 8.0 6.8 6.0 5.6 5.3 4.8 4.3 4.0 3.7 3.4 3.2 6 57.3 28.6 19.1 14.3 11.5 9.5 8.2 7.2 6.7 6.4 5.7 5.2 4.8 4.4 4.1 3.8 7 66.8 33.4 22.3 16.7 13.4 11.1 9.5 8.4 7.9 7.4 6.7 6.1 5.6 5.1 4.8 4.5 8 76.4 38.2 25.5 19.1 15.3 12.7 10.9 9.5 9.0 8.5 7.6 6.9 6.4 5.9 5.5 5.1 9 85.9 43.0 28.6 21.5 17.2 14.3 12.3 10.7 10.1 9.5 8.6 7.8 7.2 6.6 6.1 5.7 10 95.5 47.7 31.8 23.9 19.1 15.9 13.6 11.9 11.2 10.6 9.5 8.7 8.0 7.3 6.8 6.4 11 105.0 52.5 35.0 26.3 21.0 17.5 15.0 13.1 12.4 11.7 10.5 9.5 8.8 8.1 7.5 7.0 12 114.6 57.3 38.2 28.6 22.9 19.1 16.4 14.3 13.5 12.7 11.5 10.4 9.5 8.8 8.2 7.6 13 124.1 62.1 41.4 31.0 24.8 20.7 17.7 15.5 14.6 13.8 12.4 11.3 10.3 9.5 8.9 8.3 14 133.7 66.8 44.6 33.4 26.7 22.3 19.1 16.7 15.7 14.9 13.4 12.2 11.1 10.3 9.5 8.9 15 143.2 71.6 47.7 35.8 28.6 23.9 20.5 17.9 16.9 15.9 14.3 13.0 11.9 11.0 10.2 9.5 16 152.8 76.4 50.9 38.2 30.6 25.5 21.8 19.1 18.0 17.0 15.3 13.9 12.7 11.8 10.9 10.2 17 162.3 81.2 54.1 40.6 32.5 27.1 23.2 20.3 19.1 18.0 16.2 14.8 13.5 12.5 11.6 10.8 18 171.9 85.9 57.3 43.0 34.4 28.6 24.6 21.5 20.2 19.1 17.2 15.6 14.3 13.2 12.3 11.5 19 181.4 90.7 60.5 45.4 36.3 30.2 25.9 22.7 21.3 20.2 18.1 16.5 15.1 14.0 13.0 12.1 20 191.0 95.5 63.7 47.7 38.2 31.8 27.3 23.9 22.5 21.2 19.1 17.4 15.9 14.7 13.6 12.7 RATE OF TURN (DEGREES PER MINUTE) 7
Page 1 and 2: United Kingdom Maritime Pilot’s A
Page 3 and 4: Specific questions to ask in additi
Page 5: • Clutch or not Some systems have
Page 9 and 10: Speed - There are no dead slow, slo
Page 11 and 12: 3 Sailing slow astern 4 Sailing ful
Page 13 and 14: 7 Turning the stern to port 8 Turni
Page 15 and 16: 11 Turning on the spot to port to p
Page 17 and 18: Walking the Vessel Fast to Port The
Page 19 and 20: Walking the Vessel Fast to Starboar

Piloting Vessels Fitted With Azimuthing Control Devices (ACD’s)

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