Variable-pitch propellers

23 companies | 49 products
Boat propeller / variable-pitch / shaft-drive / 5-blade

MAX PROP WHISPER 5 BLADES Efficient power Outstanding reverse Ultra smooth operation...

Variable-pitch propeller / shaft-drive / 5-blade / 4-blade

The Marlin series is the result of a major...

Ship propeller / variable-pitch / shaft-drive / 5-blade

The adjustable bolted propeller (ABP) allows the most efficient...

Ship propeller / auto-feathering / controllable / shaft-drive

Looking to save fuel? Take advantage of...

Boat propeller / adjustable / fixed-pitch / shaft-drive

Fixed pitch adjustable propellers are used...

Boat propeller / fixed-pitch / adjustable / shaft-drive

Fixed pitch adjustable propellers are used...

Boat propeller / controllable / shaft-drive / 4-blade

Controllable pitch propellers (CPPs) are...

Boat propeller / auto-feathering / variable-pitch / shaft-drive

The list of Autoprop advantages, and the reasons to...

Boat propeller / auto-feathering / variable-pitch / shaft-drive

The list of Autoprop advantages, and the reasons to...

Boat propeller / variable-pitch / auto-feathering / saildrive

The list of Autoprop advantages, and the reasons to...

Ship propeller / variable-pitch / shaft-drive / 4-blade

Helseth Propulsion manufactures three- and...

Ship propeller / variable-pitch / shaft-drive / 4-blade

Helseth Propulsion manufactures three- and...

Ship propeller / variable-pitch / shaft-drive / 4-blade

Helseth Propulsion manufactures three- and...

Ship propeller / variable-pitch / shaft-drive / 3-blade

Helseth Propulsion manufactures three- and...

How to choose this product

variable-pitch-propeller

A variable pitch propeller resembles an ordinary propeller. However, the inclination of its blades can be altered to change its angle of attack with respect to the water.

Applications

These propellers optimize performance under different load conditions. For this reason, they are often used on tugboats.

Technologies

Such propellers operate as do others, by creating a pressure difference between the forward and aft blade surfaces. However, an internal mechanism allows the angle of the blades to change while the vessel is underway. In some, the pitch can be inverted, allowing the vessel to move backward without changing the rotational direction of the engine.

How to choose

Propeller size will depend on vessel size and engine power. Another factor is the operation of the servomotor controlling blade pitch. The propeller's constituent material also should be considered. Variable pitch propellers often are custom-built. Manufacturers have software and special equipment to aid selection.

Advantages

- Flexibility
- Optimum performance
- Efficiency

Disadvantages

- High cost

Subscribe to our newsletter
Thank you for subscribing
There was a problem with your request
Invalid email address

Receive updates on this section every two weeks.

With NauticExpo you can: Find a nearby distributor | Contact the manufacturer to get an estimate or a price Examine product characteristics and technical specifications | View PDF catalogs and other online documentation