Inboard Steering System Tutorial
SeaStar Inboard
INTRODUCTION
SeaStar Inboard Steering Systems are engineered and manufactured for all
Pleasure and Work Boat applications up to 50ft. with some exceptions. See the
Application Guide below for specific details.
For Commercial and Work Boat applications over 50ft. (11.5m) and Pleasure
Boats not included in the Application Chart below please refer to our Capilano
range of Inboard Steering Systems.
Features
Regular duty aluminum cylinders.
Heavy duty brass cylinders.
Easy installation for single and dual rudder
vessels.
Cylinders supplied with bleeder fittings.
Two axis articulation.
Easy autopilot interface.
.
Four steps to select a steering system for an inboard powered boat
Application Guide
Order Guide
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FOUR STEPS TO SELECT A STEERING SYSTEM FOR AN
INBOARD POWERED BOAT
1. From the Application Guide below select the System Number appropriate
for the vessel based on:
a) hull type displacement or planing,
b) length of vessel,
c) number of rudders, and
d) usage of vessel.
2. From the Order Guide below select the appropriate helms and accessory
hardware for each steering station.
3. From the Order Guide select the fitting and hose kits required for the
installation.
4. Confirm that you have sufficient space available in:
a) the area the cylinder is to be mounted, and
b) the dash area for the steering components.
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APPLICATION GUIDE
| BOAT LENGTH UP TO: |
PLANING HULL |
DISPLACEMENT HULL |
SAIL |
| SINGLE ENGINE |
TWIN ENGINE |
SINGLE ENGINE |
TWIN ENGINE |
SINGLE ENGINE |
|
|
|
|
|
|
| Pleasure |
Work |
Pleasure |
Work |
Pleasure |
Work |
Pleasure |
Work |
Pleasure |
Work |
| 26FT (8.0M) |
1 |
4 |
1 |
4 |
2 |
4 |
2 |
4 |
4 |
4 |
| 32FT (10.0M) |
2 |
4 |
1 |
4 |
3 |
4 |
3 |
4 |
4 |
4 |
| 38FT (11.5M) |
3 |
5 |
2 |
5 |
5 |
5 |
3 |
5 |
4 |
5 |
| 44FT (13.5M) |
5 |
Ref |
3 |
5 |
Ref |
Ref |
5 |
Ref |
5 |
Ref |
| 50FT (15.0M) |
Ref |
Ref |
5 |
Ref |
Ref |
Ref |
Ref |
Ref |
Ref |
Ref |
a) Displacement Hull maximum hull speed does
not normally exceed 18 knots.
b) Planing Hull maximum hull speed normally exceeds 18 knots.
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ORDER GUIDE
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 1 |
4 Turns Lock to Lock |
| Cylinder |
1 |
BA125-7ATM |
HC5312 |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
HT5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 2 |
5 Turns Lock to Lock |
| Cylinder |
1 |
BA135-7ATM |
HC5313 |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
HT5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 3 |
6 Turns Lock to Lock |
| Cylinder |
1 |
BA150-7ATM |
HC5314 |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
HT5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 4 |
4-1/4 Turns Lock to Lock |
| Cylinder |
1 |
BA150-7TM |
HC5318 |
| Helm |
1 |
SeaStar IIStandard ** |
HH5272 |
| Copper Tube |
1 |
3/8″ dia Copper Tube (note 2 & 3) or |
|
| SeaStar Hose |
1 |
SeaStar Outboard Hose (note 2 & 3) |
HO5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IIStandard ** |
HH5272 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Copper (note 2 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 5 |
5-1/2 Turns Lock to Lock |
| Cylinder |
1 |
BA175-7TM |
HC5319 |
| Helm |
1 |
SeaStar IIStandard ** |
HH5272 |
| Copper Tube |
1 |
3/8″ dia Copper Tube (note 2 & 3) or |
|
| SeaStar Hose |
1 |
SeaStar Outboard Hose (note 2 & 3) |
HO5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IIStandard ** |
HH5272 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Copper (note 2 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| OPTIONAL EQUIPMENT |
PART NO. |
| Back Plate Kit (for use with Standard Helms) |
HA5418 |
| 20 Degree Wedge (for use with Standard Helms) |
HA5419 |
| Autopilot Fitting Kit (for use with all Helms) |
HF5502 |
| * Tilt Helm-SeaStar I |
HH5741 |
| * Sport Tilt Helm-SeaStar I |
HH5291 |
| * Rear Mount Helm-SeaStar I |
HH5261 |
| ** Tilt Helm-SeaStar II |
HH5742 |
| ** Sport Tilt Helm-SeaStar II |
HH5292 |
| ** Rear Mount Helm-SeaStar II |
HH5262 |
Notice
1. For systems 1, 2 & 3 nylon tubing (3/8″
diameter) is the standard requirement for plumbing the system. Copper tubing
(3/8″ diameter) can be substituted but Fitting Kit HF5507 is required.
2. For systems 4 & 5 copper tubing (3/8″
diameter) is the standard requirement for plumbing the system. Fitting Kit
HF5508 is required.
3. For systems 1, 2, 3, 4, & 5 SeaStar outboard
hose can be substituted for nylon or copper tube. These hoses must be ordered
in standard lengths. They cannot be cut to length.
Capilano
INTRODUCTION
Capilano Helms and Cylinders are engineered and manufactured for heavy duty
marine usage, and are suitable for commercial, work boat and pleasure boat
applications. Capilano Hydraulic Steering has been designed to meet ABS,
Lloyds and DNV specifications.
For all Pleasure and Work Boat applications 38ft. (11.5m) and smaller with
some exceptions, please refer to our SeaStar range of Inboard Steering
Systems.
Features
Regular duty aluminum cylinders.
Heavy duty brass cylinders.
Easy installation for single and dual rudder vessels.
Cylinders supplied with bleeder fittings.
Two axis articulation.
Easy autopilot interface.
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Selection Guide
Cylinder Installation
Capilano Helm Pumps
Tubing, Hoses and Fitting Kits
Technical Information
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SELECTION GUIDE
| MAXIMUM OUTPUT TORQUE |
APPROX. VESSEL SIZE (HULL
LENGTH UP TO) |
HELM PUMP MODEL |
STEERING WHEEL TURNS |
CYLINDER MODEL REQUIRED |
| LB.IN. |
(Kg M) |
Planing |
Displacement |
|
Min. |
Max. |
Fixed |
|
| 6,548 |
(75) |
35′ |
(11m) |
30′ |
(9m) |
1250v |
3.0 |
6 |
n/a |
BA 150-7TM |
| 8,795 |
(100) |
40′ |
(12m) |
38′ |
(11.5m) |
1250V |
4.0 |
8 |
n/a |
BA 175-7TM |
| 12,134 |
(140) |
50′ |
(15m) |
45′ |
(14m) |
1250v |
5.5 |
11 |
n/a |
BA 200-7TM |
| 12,134 |
(140) |
50′ |
(15m) |
45′ |
(14m) |
1275V |
3.5 |
7 |
n/a |
BA 200-7TM |
| 14,766 |
(170) |
50′ |
(15m) |
45′ |
(14m) |
1275V |
4.0 |
8 |
n/a |
2 x BA 150-7TM |
| 19,900 |
(230) |
55′ |
(17m) |
50′ |
(15m) |
1275V |
5.5 |
11 |
n/a |
BA 200-11TM |
| 19,902 |
(230) |
55′ |
(17m) |
50′ |
(15m) |
1275V |
5.5 |
11 |
n/a |
2 x BA 175-7TM |
| 26,322 |
(300) |
60′ |
(18m) |
55′ |
(17m) |
1275V |
7.5 |
15 |
n/a |
2 x BA 200-7TM |
| 28,890 |
(332) |
-a- |
-a- |
-a- |
-a- |
1350 |
n/a |
n/a |
5.5 |
BA 175-11TM |
| 39,162 |
(450) |
-a- |
-a- |
-a- |
-a- |
1350 |
n/a |
n/a |
7.5 |
BA 200-11TM |
a) Consult Manufacturer for hull lengths.
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CYLINDER INSTALLATION
Proper cylinder installation is the key to the successful operation of the
hydraulic steering system. An incorrectly installed cylinder is subject to
rapid seal and bearing wear and non-repairable damage.
An imaginary line drawn through the tiller arm hole at both hard over
positions will create the cylinder centre line. With tiller arm at hard over
positions, angle X and Y should be the same. Select the diagram and
dimensional data that corresponds with your cylinder model.
Notice
Not all possible cylinder mounting configurations
are shown, however, all necessary dimensions are shown regardless of mounting
configurations.
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CAPILANO HELM PUMPS
1250V, 1275V & 1350
A unique variable displacement feature on the 1250V and 1275V helms allows
the helms-person to adjust the amount of steering wheel turns to their
preference within a predetermined range. The 1350 helm is a fixed displacement
pump.
1250V & 1275V Helm Pumps
1350 Helm Pump
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TUBING, HOSES and FITTING KITS
The use of seamless soft annealed refrigeration copper tubing, type L is
recommended. If flexible hose is required, use hose that has a minimum
operating pressure of 1000PSI, a burst pressure of 5000PSI and the lowest
available expansion factor. The 1250V requires the use of 1/2″ OD copper tube
while the 1275V requires the use of 5/8″ OD copper tube. The 1350 Helm Pump
requires the use of 3/4″ OD copper tube.
Cylinder Hoses
Steering systems installed with copper tubing
require short pieces of flexible hose to accommodate slight cylinder movement.
Hoses are supplied with 1/2″ swivel flare nuts on each end. Hoses are sold as
a pair for single cylinder applications and separately for the variables of
twin cylinder installations.
| PART NO. |
DESCRIPTION |
| The following hoses are for single cylinder applications. |
| Cylinder Hose Kit, inc. two hoses 18″ (0.45m) long |
HA5731 |
| The following hoses are for twin cylinder applications,
select four hoses as required. |
| Cylinder Hose, (one) 2′ (0.6m) long, 1250V & 1275V |
HA5732 |
| Cylinder Hose, (one) 3′ (0.9m) long, 1250V & 1275V |
HA5733 |
| Cylinder Hose, (one) 4′ (1.2m) long, 1250V & 1275V |
HA5734 |
| Cylinder Hose, (one) 5′ (1.5m) long, 1250V & 1275V |
HA5735 |
| Cylinder Hose, (one) 6′ (1.8m) long, 1250V & 1275V |
HA5736 |
| Cylinder Hose & Manifold, (Four) 2′ (0.6m) long, 1350V |
HA0733 |
| Cylinder Hose & Manifold, (Two) 28″ (0.8m) and (Two) 37″ (1.07m)
long, 1350V |
HA0734 |
Fitting Kits
Single steering station and additional
steering station S.A.E. flare tube fitting kits are available for use with
1/2″ O.D. and 5/8″ O.D. copper tubing.
| DESCRIPTION |
PART NO. |
| Fitting Kit, single station, 1/2″ copper tube |
HF5590 |
| Fitting Kit, additional station, 1/2″ copper tube |
HF5591 |
| Fitting Kit, single station, 5/8″ copper tube |
HF5592 |
| Fitting Kit, additional station, 5/8″ copper tube |
HF5593 |
Fill and Vent Plug Kit
This kit will facilitate filling and purging of
the steering system at a more convenient and accessible area than the helm
pump. A through dash fitting, complete with a waterproof vent plug, 18″
(0.45m) long vinyl tube and elbow fittings are supplied with this kit
| PART NO. |
DESCRIPTION |
| HA5450 |
Fill and Vent Plug Kit |
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TECHNICAL INFORMATION
| HELM PUMP |
1250v |
1275v |
1350 |
| Displacement |
1.7cu.in. 3.4 cu.in. (27.8 cc 55.7cc) |
2.7cu.in. 5.4 cu.in. (44.2 cc 88.4cc) |
8 cu.in. (131 cc) |
| Relief Valve |
1000 PSI (70 Bar) |
1000 PSI (70 Bar) |
1000 PSI (70 Bar) |
| Ports |
3/8″ NPT |
3/8″ NPT |
1/2″ NPT |
| STEERING WHEEL SIZE |
1250v |
1275v |
1350 |
| Minimum Diameter |
20″ (500mm) |
26″ (660mm) |
30″ (760mm) |
| Maximum Diameter |
36″ (941mm) |
36″ (941mm) |
48″ (1220mm) |
| HELM PUMP SHAFT |
1250v / 1275v |
1350 |
| |
3/4″ Standard Taper 1″ per ft. 5/8″ NF threads 3/16″ Key |
1-1/4″ (317mm) dia. Straight 3/16″ Key |
| CYLINDER MODEL SPECIFICATION |
| CYLINDER MODEL |
STROKE |
VOLUME |
TORQUE @ 1000psi 70 bar @ 35 Degrees |
| BA 150-7 models |
7″178 mm |
10.2 cu.in. (167cc) |
7117 in/lbs (81 Kg) |
| BA 175-7 models |
7″178 mm |
13.7 cu.in. (225cc) |
9569 in/lbs (110 Kg) |
| BA 200-7 models |
7″178 mm |
18.9 cu.in. (310cc) |
13200 in/lbs (151 Kg) |
| BA 200-11 models |
11″279 mm |
29.7 cu.in. (486cc) |
19900 in/lbs (228 Kg) |
| 2x 150-7 models |
7″178 mm |
23.0 cu.in. (377cc) |
15800 in/lbs (181 Kg) |
| 2x 175-7 models |
7″178 mm |
31.0 cu.in. (508cc) |
21400 in/lbs (245 Kg) |
| 2x 200-7 models |
7″178 mm |
41.0 cu.in. (672cc) |
28700 in/lbs (329 Kg) |
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Hynautic
INTRODUCTION
SeaStar offers rugged 3-line Hynautic Heavy Duty steering systems for most
work and pleasure vessels up to 70 feet.
Heavy Duty helms combine one or two bi-directional axial piston pumps with
pilot check and make-up check valving. The result is a unit which prevents
rudder feedback, is very efficient (even at low RPM), and is immediately
adaptable to multi-station use.
A wide choice of helm displacements and cylinder configurations make it
easy to spec a system which can handle a variety of large boat performance
requirements and accommodate most user preferences.
Features
Low friction heavy duty hydraulic steering.
Helm/cylinder combinations for most inboards. Marine grade materials.
Heavy duty helms available in three displacements, to accommodate most
applications and user preferences.
Helms available with 1 straight shaft or 3/4 tapered. Mount facing any
direction.
Quick air purge relief valve.
Fluid fill at remote reservoir.
Heavy duty brass cylinders. Two-axis articulation. Easy installation for
single or dual rudder vessels.
Meets or exceeds applicable standards.
Accepts most steering wheels.
.
Application Guide
Order Guide
Helm Optins
Tubing Hose Options
Cylinder Options
.
APPLICATION GUIDE
| FOR VESSEL SIZES UP TO: |
HELM PUMP MODEL |
STEERING WHEEL
TURNS |
REQUIRES CYLINDER MODEL
(2x = 2 Cylinders) |
TUBING DIAMETERS
when distance from Cylinder to farthest Helm is: |
MAX. SUGG. H.P. |
SUGG. AREA FEET
(meters) |
40 Feet
or Less |
40 Feet
or More |
| Planing Hulls |
| 35-50′ (11-15m) |
H-21 or H-25 |
5.0 |
HC5350 or HC5356 |
1/2 |
5/8 |
450 |
- |
| 40-50′ (10-18m) |
H-21 or H-25 |
6.8 |
HC5351 or HC5357 |
1/2 |
5/8 |
750 |
- |
| 40-50′ (10-18m) |
H-42 |
4.7 |
HC5351 or HC5357 |
1/2 |
5/8 |
750 |
- |
| 45-60′ (14-18m) |
H-42 |
7.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
950 |
- |
| 45-60′ (14-18m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
950 |
- |
| 55-65′ (17-20m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
1200 |
- |
| to 70′ (to 21m) |
H-41 |
10.8 |
2x HC5378 or HC5379 |
1/2 |
5/8 |
1500 |
- |
| to 70′ (to 21m) |
H-41 |
14.2 |
2x K-8 |
1/2 |
5/8 |
1500 |
- |
| Displacement Hulls Tug Boats, Net Haulers |
| to 30′ (6-9m) |
H-21 or H-25 |
5.0 |
HC5350 or HC5356 |
1/2 |
5/8 |
200 |
- |
| 30-35′ (6-11m) |
H-21 or H-25 |
6.8 |
HC5351 or HC5357 |
1/2 |
5/8 |
250 |
- |
| 30-35′ (6-11m) |
H-42 |
4.7 |
HC5351 or HC5357 |
1/2 |
5/8 |
250 |
- |
| 26-40′ (8-12m) |
H-42 |
7.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
400 |
- |
| 26-40′ (8-12m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
400 |
- |
| 30-45′ (9-14m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
450 |
- |
| to 50′ (to 15m) |
H-41 |
10.8 |
2x HC5378 or HC5379 |
1/2 |
5/8 |
500 |
- |
| to 50′ (to 15m) |
H-41 |
14.2 |
2x K-8 |
1/2 |
5/8 |
500 |
- |
| to 50′ (to 15m) |
H-41 |
20.0 |
2x K-9 |
1/2 |
5/8 |
500 |
- |
| Displacement Hulls Work and Pleasure Boats |
| to 40′ (9-12m) |
H-21 or H-25 |
5.0 |
HC5350 or HC5356 |
1/2 |
5/8 |
300 |
- |
| 40-45′ (12-14m) |
H-21 or H-25 |
6.8 |
HC5351 or HC5357 |
1/2 |
5/8 |
350 |
- |
| 40-45′ (12-14m) |
H-42 |
4.7 |
HC5351 or HC5357 |
1/2 |
5/8 |
350 |
- |
| 40-55′ (12-17m) |
H-42 |
7.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
500 |
- |
| 40-55′ (12-17m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
500 |
- |
| 45-65′ (14-20m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
650 |
- |
| to 75′ (to 23m) |
H-41 |
10.8 |
2x HC5378 or HC5379 |
1/2 |
5/8 |
750 |
- |
| to 75′ (to 23m) |
H-41 |
14.2 |
2x K-8 |
1/2 |
5/8 |
750 |
- |
| Sail Boats Skeg Rudder |
| to 40′ (9-12m) |
H-21 or H-25 |
5.0 |
HC5350 or HC5356 |
1/2 |
5/8 |
- |
9 (.9) |
| 40-45′ (12-14m) |
H-21 or H-25 |
6.8 |
HC5351 or HC5357 |
1/2 |
5/8 |
- |
10 (1) |
| 40-45′ (12-14m) |
H-42 |
4.7 |
HC5351 or HC5357 |
1/2 |
5/8 |
- |
10 (1) |
| 40-52′ (12-16m) |
H-42 |
7.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
- |
17 (1.6) |
| 40-52′ (12-16m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
- |
17 (1.6) |
| 50-60′ (15-18m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
- |
18 (1.7) |
| to 65′ (to 20m) |
H-41 |
10.8 |
2x HC5378 or HC5379 |
1/2 |
5/8 |
- |
20 (1.9) |
| to 65′ (to 20m) |
H-41 |
14.2 |
2x K-8 |
1/2 |
5/8 |
- |
20 (1.9) |
| Sail Boats Spade Rudder |
| to 40′ (9-12m) |
H-21 or H-25 |
5.0 |
HC5350 or HC5356 |
1/2 |
5/8 |
- |
7 (.6) |
| 40-45′ (12-14m) |
H-21 or H-25 |
6.8 |
HC5351 or HC5357 |
1/2 |
5/8 |
- |
8 (.7) |
| 40-45′ (12-14m) |
H-42 |
4.7 |
HC5351 or HC5357 |
1/2 |
5/8 |
- |
8 (.7) |
| 35-46′ (11-16m) |
H-42 |
7.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
- |
15 (1.4) |
| 35-46′ (11-16m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
- |
15 (1.4) |
| 40-50′ (12-15m) |
H-41 |
5.4 |
HC5378 or HC5379 |
1/2 |
5/8 |
- |
15.5 (1.4) |
| to 60′ (to 18m) |
H-41 |
10.8 |
2x HC5378 or HC5379 |
1/2 |
5/8 |
- |
16.5 (1.5) |
| to 60′ (to 18m) |
H-41 |
14.2 |
2x K-8 |
1/2 |
5/8 |
- |
16.5 (1.5) |
Notice
The application guide should be used with
discretion. The chart is only a guide to selecting a steering system. A
steering system manufacturer cannot anticipate all the variables in
boat-rudder design that affect the steering loads. It is the final
responsibility of the boat builder/designer to specify maximum expected
steering loads. If the required information is not available, please see the
Displacement and Planning Hull data sheets on page 10-21 and page 10-22. These
sheets after being completely filled out can be faxed to Teleflex Technical
Support at 604-279-2202.
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.
ORDER GUIDE
| DESCRIPTION |
PART NO. |
| Components |
| Hynautic H-20 helm (1 straight shaft) |
H-21 or |
| Hynautic H-20 helm (3/4 tapered shaft) |
H-25 or |
| Hynautic H-40 helm (1 straight shaft) |
H-42 or |
| Hynautic H-40 helm (3/4 tapered shaft) |
H-42-02 or |
| Hynautic H-40 helm (1 straight shaft) |
H-41 or |
| Hynautic H-40 helm (3/4 tapered shaft) |
H-41-02 |
| H-20 Fittings Kit for Main Station |
HF-10 |
| H-40 Fittings Kit for Main Station |
HF-21 |
| Inboard Cylinder |
HC5350 |
| Reservoir Standard (2 quart) |
R-06 |
| Relief Valve (950 PSI) |
MSV-21 |
| Relief Fittings (1150 & 1175-21-1) |
MSVF-07 |
| Relief Fittings (1175-42-1 & up) |
MSVF-13 |
| Copper Tubing |
1/2 or 5/8 OD |
| Fitting Kit (for 1/2 Copper Tubing) |
HF5590 or |
| Fitting Kit (for 5/8 Copper Tubing) |
HF5592 |
| Hose Kit for Copper Tubing (2 hoses) |
HA5731 |
| SeaStar Oil (1 Gallon) |
HA5440 |
| Options |
| Pivot Mount Inboard Cylinder |
K-31 |
| Dual Cylinder Hose 2 (.6m) |
HA5732 |
| Dual Cylinder Hose 3 (.9m) |
HA5733 |
| Dual Cylinder Hose 4 (1.2m) |
HA5734 |
| Dual Cylinder Hose 5 (1.5m) |
HA5735 |
| Dual Cylinder Hose 6 (1.8m) |
HA5736 |
| Reservoir (2 quart, with hand pump) |
R-07 |
| Reservoir (1 quart, with hand pump) |
R-11 |
| Reservoir (2 quart) |
R-12 |
| Relief Valve (500 PSI) |
MSV-19 |
| Reservalve (500 PSI, top read, 3/8) |
RV-55 |
| Reservalve (500 PSI, top read, 3/8, w/pump) |
RV-55P |
| Reservalve (500 PSI, top read, 5/16, w/pump) |
RV-57 |
| Reservalve (950 PSI, top read, 5/16) |
RV-60 |
| Reservalve (950 PSI, frt.read, 5/16, w/pump) |
RV-67 |
| H-20 Fittings Kit for Second Station |
HF-11 |
| H-40 Fittings Kit for Second Station |
HF-22 |
| Service Items |
| Reservoir (2 quart, with hand pump) |
R-07 |
| Reservoir (1 quart, with hand pump) |
R-11 |
| Reservoir (2 quart) |
R-12 |
| Relief Valve (500 PSI) |
MSV-19 |
| Reservalve (500 PSI, top read, 3/8) |
RV-55 |
| Reservalve (500 PSI, top read, 3/8, w/pump) |
RV-55P |
| Reservalve (500 PSI, top read, 5/16, w/pump) |
RV-57 |
| SeaStar Oil (1 Gallon) |
HA5440 |
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.
HELM OPTIONS
Four helms are offered in 3 displacements, as noted in the chart at right.
The H-21 helm has a 1″ straight wheel shaft; H-25 has a 3/4″ tapered shaft.
The H-42 and H-41 helms both have a 1″ straight wheel shaft.
| HELM PART NO. |
DISPLACEMENT RANGE |
RELIEF VALVE STEERING |
| H-21 |
2.75 cu.in. |
950 psi (66Bar) |
| H-25 |
2.75 cu.in. |
950 psi (66Bar) |
| H-42 |
4.00 cu.in. |
950 psi (66Bar) |
| H-41 |
5.50 cu.in. |
950 psi (66Bar) |
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.
TUBING / HOSE OPTIONS
Use soft refrigeration type copper tubing for optimum performance. For
tube-to-cylinder flex hoses, select a hydraulic hose rated for 1000 PSI (70
bar) working pressure, and with a very low volumetric expansion rating.
| HELM TYPE |
DISTANCECYLINDER TO FURTHEST
HELM |
| 40 FEET OR LESS |
MORE THAN 40 FEET |
| All |
1/2″ O.D. Copper Tubing |
5/8″ O.D. Copper Tubing |
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.
CYLINDER OPTIONS
Cylinders are made from brass & stainless steel. Available with stainless
rod & ball joint (TMB models) or stainless rod & bronze clevis (TMC models.)
Cylinders with ball joints have 2-axis articulation.
The K-31 is an optional pivot mount cylinder which can be used in the systems
numbered 8a and 8b on the opposite page. With this cylinder, the number of
wheel turns becomes 6.4 (using the H-42 helm) or 4.6 (H-41 helm).
| MODEL |
PART NO. |
DESCRIPTION / MODEL / ROD END CONFIG |
| 7″ Stroke: |
HC5350 |
Cylinder BA175-7TMB (Rod End Ball Joint) |
| HC5350 |
Cylinder BA175-7TMB (Rod End Ball Joint) |
| HC5350 |
Cylinder BA175-7TMB (Rod End Ball Joint) |
| HC5350 |
Cylinder BA175-7TMB (Rod End Ball Joint) |
| 11″ Stroke: |
HC5378 |
Cylinder BA200-11TMB (Rod End Ball Joint) |
| HC5379 |
Cylinder BA200-11TMC (Rod End Ball Clevis) |
SeaStar Inboard
INTRODUCTION
SeaStar Inboard Steering Systems are engineered and manufactured for all
Pleasure and Work Boat applications up to 50ft. with some exceptions. See the
Application Guide below for specific details.
For Commercial and Work Boat applications over 50ft. (11.5m) and Pleasure
Boats not included in the Application Chart below please refer to our Capilano
range of Inboard Steering Systems.
Features
Regular duty aluminum cylinders.
Heavy duty brass cylinders.
Easy installation for single and dual rudder
vessels.
Cylinders supplied with bleeder fittings.
Two axis articulation.
Easy autopilot interface.
.
Four steps to select a steering system for an inboard powered boat
Application Guide
Order Guide
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.
FOUR STEPS TO SELECT A STEERING SYSTEM FOR AN
INBOARD POWERED BOAT
1. From the Application Guide below select the System Number appropriate
for the vessel based on:
a) hull type displacement or planing,
b) length of vessel,
c) number of rudders, and
d) usage of vessel.
2. From the Order Guide below select the appropriate helms and accessory
hardware for each steering station.
3. From the Order Guide select the fitting and hose kits required for the
installation.
4. Confirm that you have sufficient space available in:
a) the area the cylinder is to be mounted, and
b) the dash area for the steering components.
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.
APPLICATION GUIDE
| BOAT LENGTH UP TO: |
PLANING HULL |
DISPLACEMENT HULL |
SAIL |
| SINGLE ENGINE |
TWIN ENGINE |
SINGLE ENGINE |
TWIN ENGINE |
SINGLE ENGINE |
|
|
|
|
|
|
| Pleasure |
Work |
Pleasure |
Work |
Pleasure |
Work |
Pleasure |
Work |
Pleasure |
Work |
| 26FT (8.0M) |
1 |
4 |
1 |
4 |
2 |
4 |
2 |
4 |
4 |
4 |
| 32FT (10.0M) |
2 |
4 |
1 |
4 |
3 |
4 |
3 |
4 |
4 |
4 |
| 38FT (11.5M) |
3 |
5 |
2 |
5 |
5 |
5 |
3 |
5 |
4 |
5 |
| 44FT (13.5M) |
5 |
Ref |
3 |
5 |
Ref |
Ref |
5 |
Ref |
5 |
Ref |
| 50FT (15.0M) |
Ref |
Ref |
5 |
Ref |
Ref |
Ref |
Ref |
Ref |
Ref |
Ref |
a) Displacement Hull maximum hull speed does
not normally exceed 18 knots.
b) Planing Hull maximum hull speed normally exceeds 18 knots.
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.
ORDER GUIDE
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 1 |
4 Turns Lock to Lock |
| Cylinder |
1 |
BA125-7ATM |
HC5312 |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
HT5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 2 |
5 Turns Lock to Lock |
| Cylinder |
1 |
BA135-7ATM |
HC5313 |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
HT5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 3 |
6 Turns Lock to Lock |
| Cylinder |
1 |
BA150-7ATM |
HC5314 |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
HT5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IStandard * |
HH5271 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Nylon (note 1 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 4 |
4-1/4 Turns Lock to Lock |
| Cylinder |
1 |
BA150-7TM |
HC5318 |
| Helm |
1 |
SeaStar IIStandard ** |
HH5272 |
| Copper Tube |
1 |
3/8″ dia Copper Tube (note 2 & 3) or |
|
| SeaStar Hose |
1 |
SeaStar Outboard Hose (note 2 & 3) |
HO5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IIStandard ** |
HH5272 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Copper (note 2 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| |
DESCRIPTION |
QTY. REQ. |
MODEL |
PART NO. |
| 5 |
5-1/2 Turns Lock to Lock |
| Cylinder |
1 |
BA175-7TM |
HC5319 |
| Helm |
1 |
SeaStar IIStandard ** |
HH5272 |
| Copper Tube |
1 |
3/8″ dia Copper Tube (note 2 & 3) or |
|
| SeaStar Hose |
1 |
SeaStar Outboard Hose (note 2 & 3) |
HO5___ |
| Oil |
3 |
SeaStar Oil |
HA5430 |
| For Extra Steering Station Add: |
| Helm |
1 |
SeaStar IIStandard ** |
HH5272 |
| Fitting Kit |
1 |
Add a Station |
HF5502 |
| Extra Tube |
1 |
3/8″ dia Copper (note 2 & 3) |
|
| Oil |
1 |
SeaStar Oil |
HA5430 |
| OPTIONAL EQUIPMENT |
PART NO. |
| Back Plate Kit (for use with Standard Helms) |
HA5418 |
| 20 Degree Wedge (for use with Standard Helms) |
HA5419 |
| Autopilot Fitting Kit (for use with all Helms) |
HF5502 |
| * Tilt Helm-SeaStar I |
HH5741 |
| * Sport Tilt Helm-SeaStar I |
HH5291 |
| * Rear Mount Helm-SeaStar I |
HH5261 |
| ** Tilt Helm-SeaStar II |
HH5742 |
| ** Sport Tilt Helm-SeaStar II |
HH5292 |
| ** Rear Mount Helm-SeaStar II |
HH5262 |
Notice
1. For systems 1, 2 & 3 nylon tubing (3/8″
diameter) is the standard requirement for plumbing the system. Copper tubing
(3/8″ diameter) can be substituted but Fitting Kit HF5507 is required.
2. For systems 4 & 5 copper tubing (3/8″
diameter) is the standard requirement for plumbing the system. Fitting Kit
HF5508 is required.
3. For systems 1, 2, 3, 4, & 5 SeaStar outboard
hose can be substituted for nylon or copper tube. These hoses must be ordered
in standard lengths. They cannot be cut to length.
|
WARNING:
This product can expose you to chemicals including Di-n-hexyl Phthalate (DnHP)
which is known to the State of California to cause reproductive harm, and
Vinyl Chloride which is known to the State of California to cause cancer. For
more information go to 
