Propellers

Marine Boat Shop, a specialist in nautical equipment for engine environments, offers a selection of propellers, which are essential components in marine propulsion systems, whether for sailboats, motorboats, or commercial vessels. Here’s an overview of their features, types, functionality, and advantages:

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Reference: P4G21X26R

Brand: VETUS

4-blade propeller made of manganese bronze, 21" diameter, 45mm shaft.

Hélice à 4 pales en bronze au manganèse Ref Pales rotation Fa/F ⌀ Hélice Pas( pouces) ARBRE P4G21X26R 4 Droite 0.85 21 26 45 P4G21X26L 4 Gauche 0.85 21 26 45 P4G21X25R 4 Droite 0.85 21 25 45 P4G21X25L 4 Gauche 0.85 21 25 45 P4G21X24L 4 Gauche 0.85 21 24 45 P4G21X23R 4 Droite 0.85 21 23 45 P4G21X23L 4 Gauche 0.85 21 23 45 P4G21X20R 4...

€1,854.00

Pre-order: 1 to 4 weeks delivery time depending on availability (contact us).

-33% On sale! Reduced price

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Reference: P3B19X18R

Brand: VETUS

Hélice Tripale 19x18 Droite pour Arbre de 35 mm - Pas de 18"

Cette hélice tripale 19x18 avec rotation droite est conçue pour répondre aux besoins de propulsion de haute performance, adaptée aux bateaux nécessitant une poussée fiable et une excellente maniabilité. Avec un diamètre de 19 pouces et un pas de 18 pouces, elle offre un équilibre optimal entre vitesse et traction, permettant des manœuvres précises et...

€663.30 €990.00

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Reference: P4G20X27R

Brand: VETUS

4-blade propeller, ⌀20” propeller, shaft ⌀40-45mm

4-blade propeller, ⌀20” propeller, shaft ⌀40-45mm Ref Blades rotation Fa/F ⌀ Propeller Pas( pouces) Propeller shaft P4G20X27R 4 Right-handed 0.85 20 27 40 P4G20X27L 4 Left-handed 0.85 20 27 40 P4G20X25R 4 Right-handed 0.85 20 25 40 P4G20X25L 4 Left-handed 0.85 20 25 40 P4G20X24R 4 Right-handed 0.85 20 24 40 P4G20X24L 4 Left-handed 0.85 20...

€1,620.00

Pre-order: 1 to 4 weeks delivery time depending on availability (contact us).

Propeller Characteristics:

Design:

Made up of multiple blades fixed around a central hub. The shape and angle of the blades are optimized for propulsion.

Available in different sizes and materials, including stainless steel, aluminum, and composites.

Number of Blades:

Propellers can have 2 to 6 blades, with each configuration having specific performance characteristics.

Diameter and Pitch:

Diameter: The distance between the tips of the blades. A larger diameter generates more thrust.
Pitch: The angle of the blades, which determines the distance the propeller "moves" through the water with each rotation.

Types of Propellers:

Fixed Blade Propellers:
The blades are designed with a fixed angle. They are simple and efficient but do not allow for performance adjustment according to conditions.
Adjustable Blade Propellers:
Allow the angle of the blades to be adjusted, offering flexibility to optimize performance under different conditions.
Counter-Rotating Propellers:
Used in some dual-engine systems to reduce torque and improve stability.
Surface Propellers:
Designed to operate partially out of the water, providing improved performance at high speeds.

Operation:

When the propeller rotates, it creates a pressure difference between the two sides of its blades, propelling the boat forward (or backward for reversible propellers).

Performance depends on various factors, including the propeller design, engine power, and water resistance.

Advantages:

Propulsion Efficiency:
Designed to maximize thrust while minimizing fuel consumption.
Durability:
High-quality propellers are resistant to corrosion and wear, even in harsh marine environments.
Customization:
The ability to choose propellers suited to specific conditions allows for optimized boat performance.

Maintenance:

Regular Inspection: Check the condition of the blades for signs of wear, distortion, or damage.
Cleaning: Remove debris, algae, or other obstructions that could reduce efficiency.
Alignment: Ensure the propeller is properly aligned with the engine to avoid vibrations and premature wear.