Sail-drive engines

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Engines
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Rated output 6 kW / 9 mhp
Rated Speed 3600 rpm...

Rated output 10 kW / 14 mhp
Rated Speed 3600 rpm...

YANMAR diesel engines are the lightest and toughest solutions available for sailboat...

Rated output 21 kW / 29 mhp
Rated Speed 3600 rpm...

Rated output 29 kW / 39 mhp
Rated Speed 3000 rpm...

{{productDetail[22104]}}

Rated output 6 kW / 9 mhp
Rated Speed 3600 rpm
Displacement...

Rated output 10 kW / 14 mhp
Rated Speed 3600 rpm
Displacement...

Rated output 15 kW / 21 mhp
Rated Speed 3600 rpm
Displacement...

Rated output 21 kW / 29 mhp
Rated Speed 3600 rpm
Displacement...

Rated output 29 kW / 39 mhp
Rated Speed 3000 rpm
Displacement...

{{productDetail[22876]}}

The Volvo Penta D1 and D2 series are designed with priority for highest comfort onboard. Low cruising...

The Volvo Penta D1 and D2 series are designed with priority for highest comfort onboard.
Low...

The Volvo Penta D1 and D2 series are designed with priority for highest comfort onboard.

Low...

The Volvo Penta D2-55 marine diesel delivers 55 hp with exceptional comfort.

Low cruising...

The Volvo Penta D2-75 marine diesel delivers 75 hp with exceptional comfort.
Low cruising...

{{productDetail[21503]}}

YANMAR diesel engines are the lightest and toughest solutions available for sailboat...

YANMAR diesel engines are the lightest and toughest solutions available for sailboat...

YANMAR diesel engines are the lightest and toughest solutions available for sailboat...

YANMAR diesel engines are the lightest and toughest solutions available for sailboat...

YANMAR diesel engines are the lightest and toughest solutions available for sailboat...

{{productDetail[22877]}}

Ideally designed for coastal cruisers, fishing cruisers, trawlers, canal boats, these engines are marinized by Nanni to deliver big power in a gentle manner, for many years.
The...

Nanni saildrive range - 8 SP60 engines from 10 to 60 hp

Nanni engines are setting the ultimate standards in efficient maneuvering at low speed, robustness and power at low rpm, comfort and safety in harsh weather conditions and longevity. They benefit from a new conical system for a reliable operation and a smooth Forward/Reverse clutching.
Excellent...

Nanni saildrive range - 8 SP60 engines from 10 to 60 hp

Nanni engines are setting the ultimate standards in efficient maneuvering at low speed, robustness and power at low rpm, comfort and safety in harsh weather conditions and longevity. They benefit from a new conical system for a reliable operation and a smooth Forward/Reverse clutching.
Excellent...

Nanni saildrive range - 8 SP60 engines from 10 to 60 hp

Nanni engines are setting the ultimate standards in efficient maneuvering at low speed, robustness and power at low rpm, comfort and safety in harsh weather conditions and longevity. They benefit from a new conical system for a reliable operation and a smooth Forward/Reverse clutching.
Excellent...

Nanni saildrive range - 8 SP60 engines from 10 to 60 hp

Nanni engines are setting the ultimate standards in efficient maneuvering at low speed, robustness and power at low rpm, comfort and safety in harsh weather conditions and longevity. They benefit from a new conical system for a reliable operation and a smooth Forward/Reverse clutching.
Excellent...

{{productDetail[21510]}}
{{productDetail[19996]}}

This series of exceptionally light and compact engines, features very high reliability in every condition; furthermore, this specific project has been carried out in order to optimize durability and low fuel consumption without reducing the performance of the engine.

4 stroke marine diesel engines (LDW...

This series of exceptionally light and compact engines, features very high reliability in every condition; furthermore, this specific project has been carried out in order to optimize durability and low fuel consumption without reducing the performance of the engine.

4 stroke marine diesel engines (LDW 502 M, LDW 702 M, LDW 1003 M, LDW 1404 M), fresh water cooled via heat exchanger,...

This series of exceptionally light and compact engines, features very high reliability in every condition; furthermore, this specific project has been carried out in order to optimize durability and low fuel consumption without reducing the performance of the engine.

4 stroke marine diesel engines (LDW 502 M, LDW 702 M, LDW 1003 M, LDW 1404 M), fresh water cooled via heat exchanger,...

This series of exceptionally light and compact engines, features very high reliability in every condition; furthermore, this specific project has been carried out in order to optimize durability and low fuel consumption without reducing the performance of the engine.

4 stroke marine diesel engines (LDW...

This series of exceptionally light and compact engines, features very high reliability in every condition; furthermore, this specific project has been carried out in order to optimize durability and low fuel consumption without reducing the performance...

{{productDetail[21494]}}

How to choose this product

sail-drive-engine

A sail-drive motor is a propulsion system whose Z-shaped transmission consists of a series of gears terminating with the propeller.

Applications

As it names indicates, this system is particularly suited to sailboat auxiliary power. It avoids many of the drawbacks inherent in shaft transmission.

Technologies

The sail-drive transmits engine torque to the propeller. The horizontal motor turns a horizontal shaft. Gearing links it to a vertical shaft. Additional gears turn another horizontal shaft connected to the propeller.

This system resembles powerboat Z-drives. However, unlike the latter, the sail-drive propeller cannot pivot for steering purposes. A circular neoprene seal around the sail-drive skeg makes the system watertight. The engine can be a diesel or gasoline engine, an electric motor or even a hybrid system.

How to choose

Engine choice will depend on vessel displacement. A minimum of five horsepower per ton is required for a sailboat. Seven horsepower per ton offers a comfortable margin.

Advantages

- Less vibration than shaft transmission
- More torque
- Horizontal propeller shaft
- No stuffing box
- Integrated seawater intake

Disadvantages

- Seal requires regular replacement
- Mechanically more complex

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