B&G Network Autopilot User Manual
Page 24

2 - 3
RAM 
DRIVE 
TYPE 
RAM SIZE1 
BLUE 
RAM SIZE 1 
BLUE 
RAM SIZE 2 
BLUE 
RAM SIZE 3 
BLUE 
ACP UNIT
ACP1 ACP2
ACP2
only
ACP2
only
MOTOR 
SUPPLY 
12V DC
12V DC
12V DC
24V DC
SOLENOID 
VALVE 
SUPPLY 
12V DC
1.25A (max)
12V DC
1.25A (max)
12V DC
1.25A (max)
24V DC
0.8A (max)
PEAK 
THRUST 
425 kg force
935 lbs-force
680 kg
force
1496 lbs-
force
680 kg
force
1496 lbs-
force
1062 kg
force
2342 lbs-
force
PEAK 
CURRENT 
14A @
12V
20A @
12V
25A @
12V
17A @
24V
MAXIMUM 
STROKE 
254mm
10"
254mm
10"
254mm
10"
305mm
12 "
FULL 
BORE 
AREA 
ANNULUS 
AREA 
1208 mmsq,
1.872 "sq
1005
mmsq,
1.558 "sq
1208 mmsq,
1.872 "sq
1005
mmsq,
1.558 "sq
1208 mmsq,
1.872 "sq
1005
mmsq,
1.558 "sq
1885 mmsq,
2.921 "sq
1570
mmsq,
2.434 "sq
ROD 
DIAMETER 
16 mm,
0.623 "
16 mm,
0.623 "
16 mm,
0.623 "
20 mm,
0.623 "
TILLER 
ARM 
for 700 
rudder 
214 mm
8.4 "
214 mm
8.4 "
214 mm
8.4 "
257
mm
10.16 "
MAXIMUM 
TORQUE 
892 Nm
7867 lb.ins
1427 Nm
12574 lb.ins
1427 Nm
12566 lb.ins
2688 Nm
23780 lb.ins
WEIGHT
7 kg,
15 lbs 6oz
7 kg,
15 lbs 6oz
7 kg,
15 lbs 6oz
10.3 kg,
22lbs 11oz
HELM TO 
HELM TIME 
extend 
retract 
 
 
 
15.7 sec 
13.4 sec 
(8Kg force)
 
 
15.7 sec 
13.4 sec 
(8Kg force)
 
 
11.9 sec 
10.2 sec 
(200Kg
force)
 
 
14.6 sec 
12.6 sec 
(200Kg
force)
 
 
The following table may be used to determine the steering system 
geometry for different maximum rudder angles and ram type. The last 
three columns show the peak torque available (in Kgm), amidships 
position and at the maximum rudder angle, with the latter two with the 
motor running at 50% duty cycle. 
 
Refer to the diagrams on page 2-6, 2-10, 2-11, 2-13. 
 
