Max-Prop

Italian Max-Prop range. 2, 3, 4 & 5 blade automatic self-feathering low drag propellers

LOW DRAG: Under sail the Max-Prop will increase sailing speed by about 15%, the largest difference being noticed when sailing in light airs. When sailing with a fixed propeller the vessel has to overcome the fixed blade drag, installing a Max-Prop maximizes sailing performance.

RELIABILITY: Max-Prop uses a “differential” type design so all blades open in unison in forward or reverse. The extraordinary reliability of the Max-Prop has made it an overwhelming choice for long range cruisers.

GREAT REVERSE: The Max-Prop provides 80% greater reverse power than a comparable fixed blade propeller. In reverse the blades rotate 180° in 3/4 turn of the shaft giving the Max-Prop the same efficiency in reverse as in forward.

ADJUSTABILITY: The pitch is adjustable on all Max-Props. This allows you to optimize the propeller pitch to the engine to achieve maximum efficiency.

• Original design, over 35,000 sold
• 30 years of proven performance
• 30 years of unequalled reliability
• Very low drag
• Outstanding reverse
• Internal 2 degree pitch adjustment
• Smoother operation with the 3 blade
• Greater thrust with the 3 blade

• All the features of the VP & Classic, plus
• Higher speeds for a given RPM
• Much lower fuel consumption
• Extended range under power
• Better acceleration
• Less engine noise at cruising speed
• Reduced shock load to the drivetrain
• Easy one piece installation
• Adjustable fine tuning dial

• All the features of the Classic and more
• External adjustment
• Fine 1 degree pitch adjustment
• No special tools required to adjust pitch
• Smooth and efficient under power
• Legendary Max-Prop reverse performance
• Improved thrust with the 4 blade
• Quieter operation with the 4 blade
• One piece installation on the 4 blade

• Max-Prop Saildrive With the worldwide acceptance and use of SailDrives, Max-Prop developed both a two and three blade which adapts to a spline of the drive unit with no modifications. 
• The user will experience the same advantages as a classic Max Prop, low drag, superior forward propulsion and unsurpassed reverse power. 
• The SailDrive Max-Prop is adaptable to the Volvo, Yanmar, ZF and Bukh Saildrive legs. 
• Propellers for Yanmar SailDrive’s are equipped with a dampened hub, that exceed Yanmar’s requirements.

Instruction Manual Max-Prop 2 Blade Classic

Instruction Manual Max-Prop 3 Blade Classic

Instruction Manual Max-Prop 3 Blade VP

Instruction Manual Max-Prop Easy

Instruction Manual Max-Prop Fast Generation 2

Instruction Manual Max-Prop Low RPM (Coming Soon)

Instruction Sheet Removing a Max-Prop 3 Blade

• Same benefits as 3 & 4 blade VP but simple pitch adjustment through replacement calibrated screws leading to reduced cost

• Max-Prop Whisper’ is a 5 bladed feathering propeller. The Whisper has the same advantages of the Classic model and works as the Easy model with the external pitch regulation with calibrated screws. This prop is probably the quietest feathering propeller on the market.

Diameter and pitch must be calculated as if Max-Prop were a normal fixed propeller. Max-Prop offers the great advantage of pitch adjustability in order to optimise the performance of the propeller. Reducing the blade angle αf the propeller does not reach the desired RPM; increasing the blade angle α if, on the contrary, the engine exceeds the desired RPM. A two degrees change in blade angle will change the engine RPM by about 15%, at the same boat speed. The adjustment of angle α and therefore pitch, is done when the propeller is assembled on the shaft. To obtain the different angles you have to follow the assembly instruction.