Max-Prop

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

Darglow is pleased to be UK distributor for Max-Prop, low drag propellers. Since starting production in the 1970’s Max-Prop has proven itself on racing and cruising boats around the world. With over 65,000 propellers in the water, the Max-Prop is tested daily in the harshest conditions and has established itself as a world-leading propeller suitable for use on the smallest to largest yachts. The combination of low drag, outstanding reverse power, efficient forward performance and fail safe design makes Max-Prop the ideal Sailboat propeller on the market today. Now with the introduction of the ECOWIND, Max-Prop has taken a revolutionary step forward in the propulsion of sailboats.
Max-Prop features

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.

Classic 2 and 3 bladeEcowind 4 blade Variable Pitch VP 3 and 4 bladeSaildrive
  • 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.

MP Easy5 Blade WhisperData Sheet Max-Prop Propellers

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.
The pitch on a Max-Prop changes according to the diameter of the propeller and the blades rotation angle.the table below shows the pitches in millimeters corresponding to the degree of blades angle for a given propeller diameter.

Propeller Diameter (millimeters)
300350400450500550600650700750800
Blades
Inclination
Angle
10°100115130150170185200215230250265
12°120140160180200220240260280300320
14°140165190210235260280305330350375
16°160190215245270300325350380405430
18°180215245275305335365400430460490
20°205240275310345375410445480515550
22°230265305340380420455495535570610
24°250295335375420460505454585630670
26°275320370415460505550590645690735
28°300350400450500550600650700750800
30°325380435490545600655705760815870
Pitch (millimeters)

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.