WMJ Marine

Anchor & Docking
Autopilot
Boating Accessories
Cabin/ Galley/ Deck
Communication
Electrical Supply
Electronics
Engine Parts
Fish Finder
Fishing & Sailing
GPS & Chartplotter
Instrument
Lighting
Marine Radar
Navigation Tool
Outdoor Gears
Plumbing & Pump
Safety
Steering & Control
Trolling Motor
Factory Refurbished
Specials
Rebate of Month
New Products

Shopping Cart
How to Order
Contact Us
Testimonials
FAQ & Return
Privacy Policy
Company Info
Site Map
Send me more info
Product Tutorials
Manufacturer Links
Link to Us
Government Order


Sign Up for Newsletter







WMJ Marine
How to Order Shopping CartContact Us Shipping Info International Order
Marine Product Guides > Bow Thruster Guide >

Max Power Bow Stern Thruster Guide




Thruster Selection Charts

Select the right thruster for your Boat

How to choose the correct Thruster for your Boat

For every boat owner it is important to chose the correct thrust rating (or relative power) whether it will be a tunnel thruster or a retractable thruster. To help simplify the complicated calculations associated with the many variables in a boat design, we have designed the following charts to make your decision easier:

To use these charts there are two factors (excluding the length of your boat), which you need to determine:

1. The relative size & wind area of your yacht
For a boat of any given length, the area it offers to a direct side wind can vary from one design to another. The underwater shape & total weight can also differ greatly. However, most recreational boats, both motor and sail, will fit into one of three categories:
- Cruising
- Fast cruising
- Super fast cruising

2. The conditions in which you use your boat (thruster force required)
Different people have different uses for their boat. For example, an expedition yacht on a world cruise would have different needs to a picnic boat berthed on a lake. In conclusion, some people would like a more powerful thruster than others. If the size of your boat intersects more than one thruster on the selection chart, the choice of thruster will depend on the situations and conditions in which it will be used.

 

FAQ

Tunnel Or Retractrable Thruster?

Positioning thrusters is often as important as choosing the right thrust output when seeking maximum manoeuvring performance for your boat. Thruster turbines need to be placed one full propeller diameter under the water line to achieve optimum thrust. The thruster must also be positioned as far forward in the bow or as far back in the stern as possible. A thruster stepped back from the bow (or stern) would need to be more powerful than one mounted further forward (or back), to achieve the same turning effect on the boat.

Most motor boat designs are well suited to fixed tunnel thruster installations. However, the above-described constraints (depth and positioning) often contradict each other, especially in modern sailing yachts. Although some sailing yachts can achieve good results with tunnel thrusters, most modern designs would work better using a retractable solution.

Bow Thrusters & Stern Thrusters

 

The combined use of a bow and stern thruster adds a whole new level of control when maneuvering in difficult conditions or tight corners.

Turning on the spot or even stepping the entire boat sideways becomes possible at the flick of a switch.

Max Power offers stern thruster adapters for the entire tunnel thruster range. A range of Ignition Protected thrusters is also available thus enabling the use of a stern thruster in habitually damp zones or petrol-powered boats.

On boats where conventional tunnel stern adapters cannot be used due to lack of immersion depth or the positioning of drive systems, retractable stern thrusters offer an attractive & powerful solution.

Electric Or Hydraulic Power Source

Bow and stern thrusters whether retractable or tunnel require a power source. On a boat this can be either a 12/24V DC (electric) motor or a hydraulic motor. The hydraulic motor will need to draw power from a thermal engine (via a hydraulic pump) or a remote mounted DC motor (also via a hydraulic pump). The DC motor will draw power directly from a battery bank.

The choice of power will depend on factors such as frequency of use, runtime required, and thruster size needed.

Only for Hydraulic thrusters

Hydraulic thrusters need a carefully designed hydraulic system to run them reliably and efficiently. Often this system may only be required for the boat’s thruster(s). The most common form of thruster only system uses an engine as its power source. These can offer unlimited run times and do not need batteries or high power cables. Two types of hydraulic pumps can be used for these dedicated systems.


Variable displacement pumps
A variable displacement pump can be used when a fixed flow is needed but the engine RPM is likely to vary. This would typically be a main engine or gearbox mounted pump. Often used on large powerboats, these systems offer a powerful solution for larger thrusters.

Fixed displacement pumps
Used when a generator with a PTO (power take off) is available, fixed displacement pumps give a single (fixed) flow at a given engine RPM. Highly robust, these systems are simple to install and cost effective.


Although still fundamentally a DC thruster, a hydraulic unit run from a DC power pack offers a host of advantages over conventional DC thrusters.
- Better weight distribution in the boat
- The ability to fit the thruster unit in habitually damp and even wet areas such as sail lockers
- Allows the DC motor to be placed close to the batteries that supply it, whilst still enabling the installation of the thruster(s) in the
boat’s extremities

Whether run from a DC motor or an engine, Max Power can supply a full range of components including all necessary accessories
such as a variety of oil tanks and control valves. In both cases Max Power can advise and assist in the design of an efficient system suited to your needs.






牋牋


__________________________________________________________________________________________


**The price is subject to change at anytime without any notice.  We are not responsible for any typographical errors.  Any products can be cancelled from sale at any time.

** All Products sold here are Brand New unless specified Otherwise and come with Full Manufacturer's Warranty



WarningWARNING: 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 P65Warnings.ca.gov. __________________________________________________________________________________________



__________________________________________________________________________________________

Please contact us via email ask@wmjmarine.com or Call us at


__________________________________________________________________________________________

 


Customer Rating


Top Rated

We offer online shipment tracking

  

VeriSign Trust Seal
256-bit Encryption Shopping Cart

All personal information submitted is encrypted and 100% secure

__________________________________________________________________________________________


Garmin 
Products
Garmin Autopilot
Garmin GPS Chartplotter
Garmin Fishfinder
Garmin Radar

Garmin Trolling Motor
Automatic Identification System
 

Raymarine
Authorized Reseller
Raymarine Autopilot
Raymarine GPS Chartplotter
Raymarine Fishfinder
Raymarine Radar

Automatic Identification System

Simrad
Authorized Reseller
Simrad Autopilot
Simrad GPS Chartplotter
Simrad Fishfinder
Simrad Radar

Automatic Identification System

Lowrance
Authorized Reseller
Lowrance Autopilot
Lowrance GPS Chartplotter
Lowrance Fishfinder
Lowrance Radar
Lowrance Trolling Motor

Furuno
Authorized Reseller

 
Furuno Autopilot
Furuno GPS Chartplotter
Furuno Fishfinder
Furuno Radar

Automatic Identification System

Humminbird
Authorized Reseller
Humminbird GPS Chartplotter
Humminbird Fishfinder
KVH
Authorized Reseller
Marine Satellite TV
Marine Internet
JRC
JRC GPS
JRC Fishfinder
JRC Radar
ACR
Search Light
EPIRB
Personal Beacon
GMDSS VHF Radio

 
Cannon
Downrigger
Comnav
Marine Autopilot
Satellite Compass
Fusion
Marine Stereo
Authorized Reseller
 
Icom
Mounted VHF Radio
Handheld VHF Radio
Intellian
Marine Satellite TV
Marine Internet
Lewmar
Windlass
Bow Thruster
Sail Winches

 
Maxwell
Windlass
Minn kota
Trolling Motors
Motorguide
Trolling Motors
Revere
Liferaft

Authorized Reseller
 
Viking
Liferaft

Authorized Reseller
Seaview
Radar Mount
Xantrex
Battery Charger
Inverter Charger
Inverter
B&G
Authorized Reseller
B&G utopilot
B&G PS Chartplotter
B&G Instrument

 

Blue Sea System
Distribution Panel
Battery Charger

Seastar Teleflex
Boat Steering
Engine Control
Power Assist
Velair
Marine Air Conditioning

Navionics
Marine Chart

Si-Tex
Sitex Autopilot
Sitex GPS Chartplotter
Sitex Fishfinder

Sitex Radar
 

FLIR
Thermal Camera

Authorized Reseller
Mastervolt
Battery Charger
Inverter Charger
Inverter

OceanLED
Underwater Light

Lumishore
Underwater Light

 

Uflex
Steering & Engine Control

Lumitec
Underwater Light

International Dock
power pedestal

ProMariner
Battery Charger
Inverter Charger
Inverter

Newmar
Battery Charger
Inverter Charger
Inverter
DC Converter
DC Power Supply

 

Jabsco
Water Pump
Marine Toilet
Magnum
Authorized Reseller
Battery Charger
Inverter Charger
Inverter
Raritan
Water Heater
Waste Treatment

 
Rupp
Outriggers
Taco
Outriggers

 
Lee's
Outriggers
Actisense
NMEA Networking
Max Power
Bow Thruster
Stern Thruster
Mustang

Life Vest
Dry Suit
Work Suit
Immersion Suit

McMurdo

EPIRB
SART
Personal Beacon

Airmar

Sonar Transducer
Weather Station

Victron

Marine Isolation Transformer
Marine Battery Charger
Inverter Charger

Dometic

Marine Air Conditioning

__________________________________________________________________________________________


Recommended Site: WMJ Marine at Facebook   |  WMJ Marine at Linkedin  |  WMJ Marine at Twitter | Marine Electronics Store

Thank you for visiting WMJ marine for your Boating Equipment and Marine Electronics

Home | Anchor & Docking | Autopilot | Boating Accessories | Cabin/ Galley/ Deck | Communication | Electrical Supply | Electronics | Engine Parts | Fish Finder | Fishing & Sailing | GPS & Chartplotter | Instrument | Lighting | Marine Radar | Navigation Tool | Outdoor Gears | Plumbing & Pump | Safety | Steering & Control | Trolling Motor | Factory Refurbished | Specials | Rebate of Month | New Products
Our Company Policy | Privacy Policy | Shopping Cart

Marine Supply Specialist, USA - WMJ Marine Corporation

Copy Right: WMJ Marine Corporation 2004-2024