North America

Duoprop for Aquamatic Sterndrives

Two Propellers. One Superior Thrust.

Launched in 1982, Volvo Penta showed the marine industry that twin counter-rotating propellers could produce unparalleled thrust, straight and true tracking along with faster acceleration – a completely new boating experience..

The duoprop propellers are designed to form a vital part of the driveline, providing highly efficient and predictable handling, together with excellent onboard comfort and fuel efficiency. Every set of duoprop propellers is designed, tested and manufactured together to ensure not only a high top speed, but the best overall performance – all this while securing the service life of your drive.

Pos. 1-3

1. Perfectly matched pitch and camber distribution contributes to excellent propeller grip, optimal operational efficiency, safe and predictable handling.

2. Optimized torque distribution between front and rear propellers ensures that the drive works with the load it is designed for – essential in preserving the life of the drivetrain.

3. Precise balancing of each propeller gives minimal vibrations, quiet and smooth operation. It is also essential for efficiency and minimizes wear on the drivetrain.

Pos. 4-5

Propellers made of stainless steel or nickel-bronze aluminum also include:

4. Shock-absorbing rubber bushings in the hub reduce vibration, turning and pulling forces and minimize stress on the drivetrain caused by gear-changes and propeller impact.

5. Galvanic isolation - the propeller bushing is designed to galvanically isolate the propeller from the drive. It will greatly reduce anode consumption and prevent galvanic corrosion that could be caused by the propeller.

Propeller Range

Below you’ll find an overview of the propellers available for your drive, together with their features and benefits. More information on propellers, including part numbers and propeller installation hardware can be found in the Volvo Penta Propeller Guide, see below.

DPI drives

Type H – Stainless-steel DuoProp Propellers

Designed to capture the tremendous torque from the latest generation D4 and D6 engines. The patented blade geometry of the Type H propellers provides optimal interaction between front and rear propellers, for outstanding efficiency and smooth and comfortable operation. The large blade area provides maximum grip and maneuverability. Made of high-strength stainless steel alloy for excellent strength and durability. Complete with shock absorbing rubber bushing and galvanic isolation makes it perfectly matched for the DPI drive. The line cutter is included as standard.

  • Patented blade geometry, outstanding efficiency and comfort.
  • Excellent durability and corrosion resistance.
  • High-strength stainless steel alloy.
  • Galvanic isolation protects the drive from corrosion caused by the propellers.
  • Shock-absorbing rubber bushing reduces vibrations and stress on the drivetrain.
  • Line cutter provides additional protection for the drive.
  • Three-blade front propeller and four-blade rear propeller.

DPS Drives

Type I and IH – Aluminium Duoprop Propellers

The patented blade geometry and large Active propeller diameter provide optimal performance and fuel efficiency over the entire speed range as well as smooth running, excellent grip and maneuverability. Squeeze casting and special high-strength aluminium alloy render them stronger and more durable than traditional die-cast propellers. Four layers of paint ensure excellent anti-corrosion performance.

  • Engineered to optimize performance, durability and comfort.
  • Patented blade geometry, large active propeller diameter.
  • Strong and durable high-strength aluminium alloy.
  • Three-blade front propeller and four-blade rear propeller.
  • Type I has straight splines and fits DPS and DPS-A drives.
  • Type IH has helical (spiral) splines and fits DPS-B drives.

Note! Always use type F or FH stainless steel propellers in engines exceeding 240 hp or capable of speeds above 38 knots (45 mph).

Previous type D propellers. Type I propeller sets replace previous type D propeller sets. However, type D propellers (front and rear) are sold individually as spare parts.

 

Type F and FH – Stainless-steel Duoprop Propellers

This is the perfect upgrade for enhanced performance, strength and durability. It provides better acceleration and higher top speed due to greater strength and thinner blades - versus a comparable aluminum propeller. The high-strength stainless steel adds excellent durability and corrosion resistance. Complete with a shock-absorbing rubber bushing and galvanic isolation, it is perfectly matched for the DPS-drive and the ultimate choice for demanding boaters.

  • Enhanced acceleration and top speed versus a comparable aluminum propeller.
  • Excellent strength, durability and corrosion resistance.
  • Galvanic isolation protects the drive from corrosion caused by the propellers.
  • Shock-absorbing rubber bushings reduce vibrations and stress on the drivetrain.
  • Three-blade front propeller and three-blade rear propeller.
  • Type F has straight splines and fits DPS and DPS-A drives.
  • Type FH has helical (spiral) splines and fits DPS-B drives.

DPH Drives

Type G – Nibral Duoprop Propellers

The patented blade geometry provides optimal interaction between front and rear propellers for outstanding efficiency and smooth and comfortable operation. Complete with shock-absorbing rubber bushing and galvanic isolation makes it perfectly matched for the DPH-drive.

  • Patented blade geometry, outstanding efficiency and comfort.
  • Excellent durability, minimal marine growth.
  • Extremely strong nibral (nickel-bronze-aluminum) alloy.
  • Galvanic isolation protects the drive from corrosion caused by the propellers.
  • Shock-absorbing rubber bushings reduce vibrations and stress on the drivetrain.
  • Three-blade front propeller and four-blade rear propeller.

FWD Drives

Type K – Stainless-steel Duoprop Propellers

Specifically designed for the Volvo Penta Forward Drive. These propellers are made of a strong and durable stainless-steel to provide excellent acceleration and top speed. The patented bushing made of a naval brass reduces vibrations, stress on the drivetrain components and prevents corrosion by galvanically isolating the stainless-steel propeller from the aluminum drive casting.

  • Specifically designed for the Volvo Penta Forward Drive.
  • Strong and durable stainless-steel for excellent acceleration and top speed.
  • Patented bushing reduces vibrations and stress on the drivetrain.
  • Galvanic isolation protects the drive from corrosion caused by the propellers.
  • Patented flow deflector minimizes pressure and wear on the propeller shaft seals.
  • Three-blade front propeller and three-blade rear propeller.

DPR Drives

Type GR – Stainless-steel Duoprop Propellers

Developed for the DPR high-speed drive to maximize performance and efficiency. The high-performance blade geometry and great strength ensure maximum grip and maneuverability. Made of high-strength stainless-steel alloy for excellent durability and corrosion resistance. Shock-absorbing rubber bushings and galvanic isolation make it a perfect match for the DPR high-speed drive.

  • High-performance blade geometry, great strength, thin blades.
  • Excellent durability and corrosion resistance.
  • Shock-absorbing rubber bushings reduce vibrations and stress on the drivetrain.
  • Galvanic isolation protects the drive from corrosion caused by the propellers.
  • Three-blade front propeller and three-blade rear propeller.

DPX Drives

Type E – Stainless-steel Duoprop Propellers

Developed for the DPX high-speed drive to provide maximum performance and efficiency in speeds up to 75 knots. The high-performance blade geometry and great strength ensure maximum grip and maneuverability. Made of high-strength stainless-steel for excellent durability and corrosion resistance. Shock-absorbing rubber bushings and galvanic isolation make it a perfect match for the DPX high-speed drive.

  • High-performance blade geometry, great strength, thin blades.
  • Excellent durability and corrosion resistance.
  • Designed for speeds up to 75 knots.
  • Galvanic isolation protects the drive from corrosion caused by the propellers.
  • Shock-absorbing rubber bushings reduce vibrations and stress on the drivetrain.
  • Three-blade front propeller and three-blade rear propeller.

280, 290, DP Drives

Type J – Aluminium Duoprop Propellers

A completely modern aluminium propeller designed for our classic Duoprop drives. The patented blade geometry and large propeller diameter provides optimal efficiency as well as quiet and smooth operation. A special high-strength aluminum alloy and squeeze casting process render the propellers stronger and more durable than traditional die-cast propellers. Four layers of paint ensures excellent corrosion protection performance.

  • Patented blade geometry and large active propeller diameter.
  • Strong and durable high-strength aluminium alloy.
  • Excellent anti-corrosion performance.
  • Three-blade front propeller and four-blade rear propeller.
  • Replaces previous type A and type B propellers.*

Note! Always use type C stainless steel propellers in engines exceeding 240 hp or capable of speeds above 38 knots (45 mph).

*Type A and B propeller sets are replaced by type J propeller sets. However, type A and B propellers (front and rear) are sold individually as spare parts. Complete sets of A0 and A1 are nevertheless available.

Type C – Stainless-steel Duoprop Propellers

This is the perfect upgrade for enhanced performance, strength and durability. It provides better acceleration and higher top speed through greater strength and thinner blades versus a comparable aluminium propeller. The stainless-steel material renders the propellers durable and highly resistant to cavitation, damage and corrosion. Complete with a shock-absorbing rubber bushing and galvanic isolation in the hub.

  • Enhanced acceleration and top speed versus a comparable aluminium propeller.
  • Excellent strength, durability and corrosion resistance.
  • Shock-absorbing rubber bushings reduce vibrations and stress on the drivetrain.
  • Galvanic isolation protects the drive from corrosion caused by the propellers.
  • Three-blade front propeller and three-blade rear propeller.

Related Products for Drives and Propellers

Line Cutter

The line cutter is mounted to the rear propeller which creates an efficient rotating cutting action. It is easy to install using the existing locking bolts and does not increase drag or fuel consumption. The line cutter is available for all Volvo Penta IPS models.

Anodes

Volvo Penta anodes are specifically manufactured and tested for Volvo Penta drives and propellers – protecting the drive unit and propeller against galvanic corrosion.
General recommendations and part numbers for Anodes can be found in the Propeller Guide.

Grease for Propeller Components

Volvo Penta water-resistant grease is designed to provide excellent adhesion, water resistance and load-carrying properties, and long-term protection against corrosion. It is a multi-purpose premium grease highly recommended for greasing propeller shafts, folding propellers and all other propeller components.
General recommendations and part numbers can be found in the Propeller Guide.

Propeller Guide

More information on propellers, including part numbers, propeller sizes and installation hardware can be found in the Volvo Penta Propeller Guide.

Download propeller guide (PDF, 9.4MB)
Contact a Local Dealer
Dealer locator