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Home > Autopilot > Raymarine Autopilot >

Raymarine Autopilot Drive Unit




The first step in selecting an autopilot is selecting the proper drive unit for your vessel. Raymarine autopilot drive units are available in array of sizes and configurations to accommodate various steering system types and vessel displacements.
To properly select an autopilot you will need to find out what type of steering system is installed. This may involve opening a few hatches and taking a peak at the gear
 


SmartPilot Hydraulic Drive Selection Chart

Drive Type

Type 1

Type 1

Type 2

Type 3

Vessel Displacement

Does not apply here. The drive unit is matched to the ram capacity of the steering system

Ram Capacity

4.9in3 10.5in3

4.9in3 14in3

14in3 21in3

21in3 30.5in3

 

(80cc 172cc)

(80cc 230cc)

(230cc 350cc)

(350cc 500cc)

Maximum Stall Pressure at 12V

750psi (50bar)

750psi (50bar)

1450psi (100bar)

1160psi (80bar)

Peak Flow Rate (no load)

67in3/min (1000cc/min)

67in3/min (1000cc/min)

122in3/min (2000cc/min)

175in3/min (2900cc/min)

Corepack Used

ACU-200

ACU-200

ACU-400

ACU-400

Drive Details

M81120 (12 V)

M81120 (12 V)

M81121 (12 V)

M81122 (12 V)

 

 

M81119 (24 V)

M81123 (24 V)

M81124 (24 V)

  • Vessels with outboard engines require an optional Linear Rudder feedback (Model number M81188)
  • Hydraulic steering systems with steering rams over 30.5 cubic inches require our larger constant running hydraulic pumps used in conjunction with ACU-400 corepacks.
  • Vessels with 24-volt DC power must use the ACU-200, 300, or 400 Control Unit and 24-volt drive.

Linear Drive

 
Type 1 Linear Drive  
Linear drive for mechancically steered vessels up to 22,000lb (10,000kg)  
Type 2 Long Linear Drive  
Type 2 (long) Linear drive for mechancically steered vessels up to 44,000lb (20,000kg)  
 Hydraulic Linear Drive
Type 2 Hydraulic Linear system for mechanically steered vessels up to 48,500lb (22,000kg) displacement  
Type 3 Hydraulic Linear system for mechanically steered vessels up to 77,000lb (35,000kg) displacement  






Raymarine Type 1 Pump 12V, 4.9-14 cubic inch, M81120
Raymarine Type 2 Pump 12V, 14-21 cubic inch, M81121
Raymarine Type 1 Pump 12V, 4.9-14 cubic inch, M81120

Brand New with Factory Warranty

List Price: $US 918.50
Our Price: $US 679.00

Raymarine Type 2 Pump 12V, 14-21 cubic inch, M81121

Brand New with Factory Warranty

List Price: $US 1,072.50
Our Price: $US 839.00

Raymarine Type 3 Hydraulic Pump 12V, 21-35 cubic inch, M81122
Raymarine Type 1 Pump 24V, 4.9-14 cubic inch, M81119
Raymarine Type 3 Hydraulic Pump 12V, 21-35 cubic inch, M81122

Brand New with Factory Warranty

List Price: $US 1,319.00
Our Price: $US 1,069.00

Raymarine Type 1 Pump 24V, 4.9-14 cubic inch, M81119

Brand New with Factory Warranty

List Price: $US 934.00
Our Price: $US 819.00

Raymarine Type 2 Pump 24V, 14-21 cubic inch, M81123
Raymarine Type 3 Hydraulic Pump 24V, 21-35 cubic inch, M81124
Raymarine Type 2 Pump 24V, 14-21 cubic inch, M81123

Brand New with Factory Warranty

List Price: $US 989.00
Our Price: $US 899.00

Raymarine Type 3 Hydraulic Pump 24V, 21-35 cubic inch, M81124

Brand New with Factory Warranty

List Price: $US 1,374.00
Our Price: $US 1,099.00

Raymarine Hydraulic Reversing Pump, Type 0.5, 12v E12139
Raymarine Type 1 Linear Drive 12V , M81130
Raymarine Hydraulic Reversing Pump, Type 0.5, 12v E12139

Brand New with Factory Warranty

List Price: $US 630.00
Our Price: $US 575.00

Raymarine Type 1 Linear Drive 12V , M81130

Brand New with Factory Warranty

List Price: $US 1,881.00
Our Price: $US 1,539.00

Raymarine Type 2 Linear Drive 12V M81131
Raymarine Type 2 Long Linear Drive 12V M81132
Raymarine Type 2 Linear Drive 12V M81131

Brand New with Factory Warranty

List Price: $US 2,178.00
Our Price: $US 1,799.00

Raymarine Type 2 Long Linear Drive 12V M81132

Brand New with Factory Warranty

List Price: $US 2,178.00
Our Price: $US 1,789.00

Raymarine Type 2 Short Linear Drive 24V M81133
Raymarine Type 2 Long Linear Drive 24V M81134
Raymarine Type 2 Short Linear Drive 24V M81133

Brand New with Factory Warranty

List Price: $US 2,342.00
Our Price: $US 1,849.00

Raymarine Type 2 Long Linear Drive 24V M81134

Brand New with Factory Warranty

List Price: $US 2,233.00
Our Price: $US 1,879.00

Raymarine Type 1 Rotary Drive 12V , M81135
Raymarine Type 2 Rotary Drive 12V M81136
Raymarine Type 1 Rotary Drive 12V , M81135

Brand New with Factory Warranty

List Price: $US 1,689.00
Our Price: $US 1,429.00

Raymarine Type 2 Rotary Drive 12V M81136

Brand New with Factory Warranty

List Price: $US 1,936.00
Our Price: $US 1,649.00

Raymarine Type 2 Rotary Drive 24V M81137
Raymarine Type 2 Hydraulic Linear Drive 12V M81200 (New E12207 )
Raymarine Type 2 Rotary Drive 24V M81137

Brand New with Factory Warranty

List Price: $US 1,979.00
Our Price: $US 1,649.00

Raymarine Type 2 Hydraulic Linear Drive 12V M81200 (New E12207 )

Brand New with Factory Warranty

List Price: $US 3,189.00
Our Price: $US 2,549.00

Raymarine Type 2 Hydraulic Linear Drive 24V M81201 (New E12208 )
Raymarine Type 3 Hydraulic Linear Drive 12V M81202
Raymarine Type 2 Hydraulic Linear Drive 24V M81201 (New E12208 )

Brand New with Factory Warranty

List Price: $US 3,189.00
Our Price: $US 2,599.00

Raymarine Type 3 Hydraulic Linear Drive 12V M81202

Brand New with Factory Warranty

List Price: $US 3,189.00
Our Price: $US 2,599.00

Raymarine Type 3 Hydraulic Linear Drive 24V M81203
Raymarine Universal Sterndrive Actuator For Inboard/Outboard Vessel with Power Assisted Steering E12026
Raymarine Type 3 Hydraulic Linear Drive 24V M81203

Brand New with Factory Warranty

List Price: $US 3,299.00
Our Price: $US 2,699.00

Raymarine Universal Sterndrive Actuator For Inboard/Outboard Vessel with Power Assisted Steering E12026

Brand New with Factory Warranty

List Price: $US 1,100.00
Our Price: $US 919.00

Raymarine Constant Running Pump, 22-73 cubic inch 12V, E12171
Raymarine Constant Running Pump, 22-73 cubic inch 24V, E12172
Raymarine Constant Running Pump, 22-73 cubic inch 12V, E12171

Brand New with Factory Warranty

List Price: $US 2,749.00
Our Price: $US 2,394.93

Raymarine Constant Running Pump, 22-73 cubic inch 24V, E12172

Brand New with Factory Warranty

List Price: $US 2,749.00
Our Price: $US 2,394.93

Raymarine DBL Pilot Check Valve M81166
Raymarine Solenoid Valve M81167
Raymarine DBL Pilot Check Valve M81166

Brand New with Factory Warranty

List Price: $US 274.00
Our Price: $US 219.00

Raymarine Solenoid Valve M81167

Brand New with Factory Warranty

List Price: $US 380.00
Our Price: $US 339.00


Raymarine Drive Unit Selection

Raymarine Evolution systems accommodate hydraulic, mechanical and power assisted stern drive systems. If you are not sure how to determine what type of steering system is installed on your vessel, please consult an authorized Raymarine dealer.

The Drive unit is the part that interfaces with your vessel's steering system to keep you on the right course. Raymarine has a broad range of drive units to match almost any type of steering system. 

Select your steering type below to explore available drive units...

Hydraulic Steering Systems

Raymarine Evolution pilots connect to hydraulic steering systems using a rugged hydraulic pump matched to the capacity of the hydraulic steering system.

If your system is hydraulic...

You'll need to find out the size (in cc) of the hydraulic cylinder ram(s) mounted to the rudder or inboard engine boats, or to the drive unit on outboard engine boats. Your steering system documentation will have this information.

  HYDRAULIC PUMPS
Drive Type Type 0.5 (12V) Type 1 (12V or 24V) Type 2 (12V or 24V) Type 3 (12V or 24V) Constant Running Pump (12V or 24V)
Part Number 12V: E12139 12V: M81120 24V: M81119 12V: M81121 24V: M81123 12V: M81122 24V: M81124 12V: E12171 24V: E12172
Vessel Displacement Does not apply here. The drive unit is matched to the ram capacity of the steering system
Ram Capacity 50cc-110cc
(3.1in36.7in3)
80cc 230cc
(4.9in314in3)
230cc 350cc
(14in321in3)
350cc 500cc
(21in330.5in3)
500cc - 1200cc
(30.5in3 - 73in3)
Maximum Stall Pressure at 12V 50bar (750psi) 100bar (1450psi) 80bar (1160psi) 57 bar (827psi)
Peak Flow Rate (No Load) 650 cc/min (30.52in3/min 1000cc/min (67in3/min) 2000cc/min (122in3/min) 2900cc/min (175in3/min) 4500cc/min (274.6in3 / min)
ACU Used ACU-100 ACU-200 ACU-400 ACU-300

Notes:

  • In some systems with dual steering rams in parallel, cylinder capacity is the total of both rams. Rams in series only require single capacity valve. Hydraulic steering systems with steering rams over 500cc require our larger constant running pump used in conjunction with the relevant ACU - contact Raymarine for details.
  • An authorized Raymarine dealer is best suited to installing a hydraulic autopilot system.
  • Type 0.5 suitable for Volvo D4/D6 Sterndrive applications.

Hydraulic Linear Drives

Designed for larger mechanically steered vessels over 20,000kg, our hydraulic linear drives are self-contained hydraulic steering systems consisting of a reversing pump, reservoir and hydraulic ram.

A hydraulic linear drive unit connects to the rudder stock via an independent tiller arm. Accessory fittings from your steering system manufacturer may be required. Must be able to back drive steering system for the rudder.

       
  HYDRAULIC LINEAR DRIVES
Drive Type Type 2 Type 3
Part Number 12V: E12207 24V: E12208 12V: M81202 24V: M81203
Maximum boat displacement 22,000 kg 35,000 kg
Peak thrust 585 kg 1,200 kg
Maximum stroke 254 mm 300 mm
Hard-over to hard-over times 10 seconds 10 seconds
Maximum rudder torque 1,270 Nm 3,200 Nm
Corepack used ACU-400 ACU-400

Notes:

  • A hydraulic linear drive unit connects to the rudder stock via an independent tiller arm. Accessory fittings from your steering system manufacturer may be required.
  • An authorized Raymarine dealer is best suited for installing a linear drive system.
  • Must be able to back drive steering system for the rudder.

Mechanical Linear Drives

Our most commonly used drive types for sailing vessels. Raymarine mechanical linear drives provide powerful thrust, fast hard-over times and quiet operation. Mounted below decks, the linear drive moves the rudder directly by pushing the tiller arm or a rudder quadrant.

A linear drive unit connects to the rudder stock via an independent tiller arm. Accessory fittings from your steering manufacturer may be required. Must be able to back-drive steering system from the rudder.

          
  MECHANICAL LINEAR DRIVE
Drive Type Type 1 Type 2 Short Type 2 Long
Part Number 12V: M81130 12V: M81131 | 24V: M81133 12V: M81132 | 24V: M81134
Maximum boat displacement 11,000 kg (24,000 lb) 15,000 kg (33,000 lb) 20,000 kg (44,000 lb)
Peak thrust 295 kg (650 lb) 480 kg (1,050 lb) 480 kg (1,050 lb)
Maximum stroke 300 mm (12") 300 mm (12") 400 mm (16")
Hard-over to hard-over times 11 seconds 11 seconds 14 seconds
Maximum rudder torque 735 nm (6,500 lb.in) 1,190 nm (10,500 lb.in) 1,660 nm (14,700 lb.in)
Power consumption 18-36 W 48-72 W 48-72 W
Corepack used ACU-200 ACU-400 ACU-400

Notes:

  • A linear drive unit connects to the rudder stock via an independent tiller arm. Accessory fittings from your steering system manufacturer may be required.
  • An authorized Raymarine dealer is best suited for installing a linear drive system.
  • Must be able to back-drive steering system from the rudder.

Mechanical Rotary Drives

The rotary drive is designed for power and sailboat systems that can be driven from the helm position through a chain and sprocket (e.g. cable and rod steering system). The outstanding design of the Raymarine rotary drive unit provides smooth, powerful autopilot controlled steering with quiet operation.

Optional drive sprockets and modification to the steering chain may be required.

       
  MECHANICAL ROTARY DRIVES
Drive Type Type 1 12V: M81135 Type 2 12V: M81136 24V: M81137
Maximum boat displacement 11,000 kg 20,000 kg
Peak output torque 20 nm 34 nm
Maximum shaft speed 33 rpm 33 rpm
Recommended hard-over times (no load) 10 seconds 10 seconds
Power consumption 24-48 W 60-84 W
Corepack used ACU-200 ACU-400

Notes:

  • Optional drive sprockets and modification to the steering chain may be required.
  • An authorized Raymarine dealer is best suited for installing a linear drive system.

Stern Drives

The stern drive is for use with inboard/outboard (I/O) vessels with power assisted steering.

  STERN DRIVE
Part Numbers Standard Sterndrive: M81138 Universal Sterndrive: E12026
Maximum boat displacement Does not apply
Drive method Electromechanical
Maximum thrust 150 kg 50kg
Recommended hard-over times 8.8 seconds
Maximum stroke 214 mm
Corepack used ACU-200

Notes:

  • Always verify compatibility before installing a drive unit by consulting an authorised Raymarine dealer or Raymarine's Customer Support team.
  • Drive compatible with 1997 or later Mercruiser power assist inboard/outboard drives and Volvo Penta.
  • Vessels with 12V systems only.
  • An authorised Raymarine dealer is best suited for installing a linear drive system.
  • Compatible with Volvo Penta and Mercruiser I/O drive engines - see dealer for bracket options with standard I/O drive.

RaymarineCylinder Ram Size Chart

 

Use the table below to determine which Raymarine hydraulic pump is appropriately sized for your steering ram.

 

Important Note: The information given in this table should be used for guidance only. If you are in any doubt as to the correct drive unit contact Raymarine's Customer Support Team or consult with an authorized Raymarine dealer for further application advice.

 

Manufacturer and Cylinder Ram Model Number Volume (cc) Volume (cu in) Raymarine Pump Special Notes
BCS
MT50 142 8.7 Type 1 See Note 1
MT80 195 12 Type 1/Type 2 See Note 1
MType 105 261 15.9 Type 2/Type 3 See Note 1
MType 215 530 32.3 CR2 -
MType 300 750 45.8 CR2 -
MType 360 917 55.9 CR2 -
MT450 1266 77.2 - See Note 2
MT550 1388 84.7 - See Note 2
MT800 1984 121 - See Note 2
MType 1160 2884 176 - See Note 2
MType 1600 3856 235.2 - See Note 2
HY-DRIVE
310 162 9.9 Type 1/Type 2 See Note 1
312 105 6.4 Type 1 See Note 1
313 195 11.9 Type 1/Type 2 See Note 1
314 310 18.9 Type 2/Type 3 See Note 1
316 144 8.8 Type 1 See Note 1
HYNAUTIC
K1 198 12.1 Type 1/Type 2 See Note 1
K2 288 17.6 Type 2/Type 3 See Note 1
K3 379 23.1 Type 3/CR1 See Note 1
K4 500 30.5 CR1/CR2 See Note 1
K10 123 7.5 Type 1 See Note 1
K11 180 11.8 Type 1/Type 2 See Note 1
K12 141 8.6 Type 1 See Note 1
K13 180 11 Type 1/Type2 See Note 1
K14 141 8.6 Type 1 See Note 1
K16 115 7 Type 1 See Note 1
K17 147 9 Type 1 See Note 1
K18 136 8.3 Type 1 See Note 1
K19 148 9 Type 1 See Note 1
K20 136 8.3 Type 1 See Note 1
K22 218 13.3 Type 1/Type 2 See Note 1
K24 109 6.6 Type 1 See Note 1
K25 218 13.3 Type 1/Type 2 See Note 1
K26 262 16 Type 2/Type 3 See Note 1
K27 218 13.3 Type 1/Type 2 See Note 1
K28 262 16 Type 2/Type 3 See Note 1
K29 262 16 Type 2/Type 3 See Note 1
K31 418 25.5 Type 3/CR1 See Note 1
K32 328 20 Type 2/Type 3 See Note 1
K33 377 23 Type 3/CR1 See Note 1
K51 167 10.2 Type 1/Type 2 See Note 1
KOBELT
Model 7040
B7.5 180 11 Type 1/Type 2 See Note 1
B5.5 131 8 Type 1 See Note 1
B10 239 14.6 Type 2 -
Model 7050
B7.5 333 20.3 Type 2/Type 3 See Note 1
B10 442 27 Type 3/CR1 See Note 1
B12 531 32.4 CR2 -
Model 7080
B7.5 718 43.8 CR2 -
B12 1149 70.1 CR2 -
Model 7094
U12 4326 264 - See Note 2
U16 5768 352 - See Note 2
U20 7210 440 - See Note 2
U24 8652 528 - See Note 2
U30 10815 660 - See Note 2
Model 7096
U16 12979 729 - See Note 2
U20 16223 990 - See Note 2
U24 19468 1188 - See Note 2
U30 24318 1484 - See Note 2
U36 29185 1781 - See Note 2
LS (POMPES)
Outboard Cylinder
28ST HB/HBR 141.6 8.64 Type 1 See Note 1
VHM228 106 6.4 Type 1 See Note 1
VHM232 112 6.8 Type 1 See Note 1
Inboard Cylinder
VHM45 DT 240 14.6 Type 2 -
VHM45.228 268 16.3 Type 2/Type3 See Note 1
VHM60 DT 505 30.8 CR2 -
VHM28 DTP 69.2 4.2 - See Note 2
VHM32 DTP 120.5 7.35 Type 1 See Note 1
VHM40 DTP 191 11.6 Type 1/Type 2 See Note 1
VHM40.254 239 14.5 Type 2 -
VHM50 DTP 352 21.5 Type 3/CR1 See Note 1
VHM50.300 464 28.3 CR1 -
VHM60.300 664 40.5 CR2 -
VHM80 DT 1167 71.2 CR2 -
VHM90 DT 1567 95.6 - See Note 2
VHM110 DT 3076 187.7 - See Note 2
VHM120 DT 3798 2311.8 - See Note 2
Double Cylinder System
VHM32 T 242 14.7 Type 2 -
VHM40 T 378 23 Type 3/CR1 See Note 1
MARCON
MC10 118 7.2 Type 1 See Note 1
MC12 152 9.3 Type 1 See Note 1
MC14 118 7.2 Type 1 See Note 1
MC16 152 9.3 Type 1 See Note 1
MC18 118 7.2 Type 1 See Note 1
MC20 152 9.3 Type 1 See Note 1
MC22 118 7.2 Type 1 See Note 1
MC24 152 9.3 Type 1 See Note 1
MC40 152 9.3 Type 1 See Note 1
MC41 152 9.3 Type 1 See Note 1
MC42 197 12 Type 1/Type 2 See Note 1
MC43 197 12 Type 1/Type 2 See Note 1
MC44 152 9.3 Type 1 See Note 1
MC46 197 12 Type 1/Type 2 See Note 1
MC60 225 13.7 Type 1/Type 2 See Note 1
MC62 288 17.6 Type 2/Type 3 See Note 1
MC64 225 13.7 Type 1/Type 2 See Note 1
MC66 288 17.6 Type 2/Type 3 See Note 1
MC50B 121 7.4 Type 1 See Note 1
MAROL
MRB-30 75 4.6 ST5 -
MRB-50 108 6.6 Type 1 See Note 1
MRB-63 154 9.4 Type 1 See Note 1
MRB-80 395 24.1 Type3/CR1 See Note 1
MORSE
HS3000 (303932) 107 6.5 Type 1 See Note 1
HS4000 (303942) 188 11.5 Type 1/Type 2 See Note 1
HS5000 (308610) 222 13.6 Type 1/Type 2 See Note 1
SEIPEM
CD101 170 10.4 Type 1/Type 2 See Note 1
S151 320 19.5 Type 2/Type 3 See Note 1
S221 440 26.8 Type 3/CR1 See Note 1
S301 530 32.3 CR2 -
S501 540 32.9 CR2 -
S701 1000 61 CR2 -
S1001 1680 102.5 - See Note 2
S1501 2700 164.7 - See Note 2
CV31 56 3.4 - See Note 2
CV50 75 4.6 Type 1 -
CV51 81 4.9 Type 1 -
CV75 109 6.6 Type 1 See Note 1
CV76 118 7.2 Type 1 See Note 1
SERVI
MA40 120 7.3 Type 1 See Note 1
MA60 141 8.6 Type 1 See Note 1
MA120 294 17.9 Type 2/Type 3 See Note 1
MA200 500 30.5 CR1/CR2 See Note 1
MA300 750 45.7 CR2 See Note 1
MA500 1270 77.5 - See Note 1
SLEIPNER
LS450 90 5.5 ST5 -
LS451 152 9.3 Type 1 See Note 1
LC452 129 7.9 Type 1 See Note 1
LC453 240 14.6 Type 2 -
LC454 268 16.3 Type 2/Type 3 See Note 1
LC455 505 30.8 CR2 -
LC456 646 39.4 CR2 -
LC457 750 45.8 CR2 -
LC458 1167 71.2 CR@ -
LC459 1567 95.6 - See Note 2
LC460 3076 187.6 - See Note 2
LC461 3798 231.7 - See Note 2
SP30 (71030) 68 4.2 - See Note 2
SP60 (71060) 125 7.6 Type 1 See Note 1
SP90 (71090) 215 13 Type 1/Type 2 See Note 1
TELEFLEX/SEASTAR
BA125-7 118 7.2 Type 1 See Note 1
BA135-7 139 8.5 Type 1 See Note 1
BA137-7 139 8.5 Type 1 See Note 1
BA150-7 167 10.2 Type 1/Type 2 See Note 1
BA175-7 216 13.2 Type 1/Type 2 See Note 1
BA200-7 310 18.9 Type 2/Type 3 See Note 1
BA200-11 486 18.9 CR1 See Note 1
Sterndrive Cylinder
125-8EM 161 9.8 Type 1/Type 2 See Note 1
BA135-8EM 155 9.4 Type 1 See Note 1
BA150-7EM 168 10.2 Type 1/Type 2 See Note 1
TENFJORD
JR1.10 100 6.1 Type 1 See Note 1
JR1.20 210 12.8 Type 1/Type 2 See Note 1
JR1.25 214 13 Type 1/Type 2 See Note 1
JR1.30 340 20.7 Type 2/Type 3 See Note 1
JR1.35 367 22.4 Type 3/CR1 See Note 1
JR1.50 565 34.5 CR2 -
JR1.60 540 32.9 CR2 -
JR1.100 1174 71.6 CR2 -
VETUS
MType 30 67 4.1 Type 1 See Note 2
MT45 152 9.3 Type 1 See Note 1
MT52 104 6.3 Type 1 See Note 1
MT65 152 9.3 Type 1 See Note 1
MT72 146 8.9 Type 1/ Type 2 See Note 1
MT80 190 11.6 Type 2/Type 3 See Note 1
MType 105 261 16 Type 2/Type 3 See Note 1
MType 110 275 16.8 Type 2/Type 3 See Note 1
MType 125 253 15.5 Type 3 -
MType 140 350 21.3 Type 3/CR1 See Note 1
MType 175 356 21.7 CR2 -
MType 215 532 32 CR1/CR2 See Note 1
MType 225 500 30.5 CR2 -
MType 340 750 45.8 CR2 -
MT450 1000 61 -  
MT600 1319 80.5 - See Note 2
MT900 1978 120.7 - See Note 2
MType 1200 2638 161 Type 1 See Note 2
OB35 106 6.44 Type 1 See Note 1
OB85 170 10.35   See Note 1
WAGNER
N-65 98 6 ST5 -
N-85 128 7.8 Type 1 See Note 1
N40-120 127 7.7 Type 1 See Note 1
N40-190 200 12.2 Type 1/Type 2 See Note 1
N50-190 314 19.1 Type 2/Type 3 See Note 1
N50-300 495 30.2 CR1 -
N80-190 802 49 CR2 -
N80-300 1267 77.3 - See Note 2
N-175-750 241 14.7 Type 2 -
N-175-1000 321 19.6 Type 2/Type 3 See Note 1
N-250-800 541 33 CR2 -
N-250-1000 680 41.5 CR2 -
N-250-1300 878 53.6 CR2 -
N-350-1200 1541 94 - See Note 2
T-2 162 9.9 Type 1/Type 2 See Note 1
T-3 377 23 Type 3/CR1 See Note 1
T-4 511 31.2 CR2 -
T-5 685 41.8 CR2 -
T-10 893 54.5 CR2 -
T-11 893 54.5 CR2 -
T-12 1257 76.7 - See Note 2
T-12B 1508 92 - See Note 2
T-13 1257 76.7 - See Note 2
T-13B 1508 92 - See Note 2
WHITLOCK SQUADRON
Inboard Cylinder
SRK222 115.6 7.05 Type 1 See Note 1
SRK173 173 10.5 Type 1/Type 2 See Note 1
SRK116 222 13.47 Type 1/Type 2 See Note 1
Outboard Cylinder
SOB200 132.11 8.05 Type 1 See Note 1
SOB200 163.24 9.97 Type 1/Type 2 See Note 1
SOB168 168 10.25 Type 1/Type 2 See Note 1
Sterndrive Cylinder
SSD133(B) 132.11 8.05 Type 1 See Note 1
SSD135(UB) 132.11 8.05 Type 1 See Note 1
WILLIS-RIDLEY
T.50 136 8.3 Type 1 See Note 1
T.100 283 17.3 Type 2/Type 3 See Note 1
T.160 354 21.6 Type 3/CR1 See Note 1
W.1(1.11/16) 403 24.6 Type 3/CR1 See Note 1
W.1(1.7/8) 508 31 CR2 -
W.2(2.3/8) 800 48.8 CR2 -
W.2(2.7/8) 1171 71.4 CR2 -
W.3(75) 1706 104 - See Note 2
W.3(85) 2181 133 - See Note 2
W.3(95) 2722 166 - See Note 2
R.2.5/9 543 33.13 CR2 -
R.2.5/12 724 44.18 CR2 -
R.3.25/8 927 56.5 CR2 -
R.3.25/11.25 1304 79.5 - See Note 2
R.4/11.25 1984 121 - See Note 2
R.5/11.5 2952 180 - See Note 2
R.5/15.5 3968 242 - See Note 2
2R.3.25/11.25 2608 159 - See Note 2

 

Selection Chart Notes

The recommended Raymarine pump in the table above has been determined by cylinder displacement alone and should result in a nominal hardover to hardover time of 10 secs. The formula below can be used to determine the hardover time:

Hardover Time = (Ram Capacity) X 60 (Peak Flow Rate)

Note 1: Where the choice of two or more pumps are indicated the type, displacement and steering characteristics of the vessel should be considered. By choosing the larger pump with an increased flow rate a faster hardover time can be achieved, which on some vessels will result in improved Autopilot helm response and course keeping.

Note 2: The ram indicated is outside the Raymarine range of pumps.

The information given in this document should be used for guidance only, if you are in any doubt as to the correct drive unit contact Raymarine's Customer Support Team for further application advice.

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