J Prop Classical - Sail Drive
What is it
The J Prop propeller is designed with a symmetrical section and profile to obtain a perfect balance on the hydrodynamic center of pressure.
The classic version is available for the widest variety of engines and types of boats.
Suitable for any type of Sail Drive foot, it is configured in the VOLVO SD, LOMBARDINI SD, YANMAR SD, SONIC versions.
J Prop – The self-adjusting variable pitch propeller
The advantages of JPROP propellers are well known to all sailing enthusiasts:
- The ability to vary the pace;
- The design of the blades, designed to minimize drag under sail;
- The significantly higher performance in reverse, compared to conventional propellers, thanks to the automatic rotation of the blades of 180°
The latest generation
J Prop is the ideal propeller for sailing boats, both for cruising and racing. Conceived and designed specifically for sailors, it is easy to install, easy to adjust, resistant and efficient
Absence of vibrations
J Prop is statically and dynamically balanced by electronic control to achieve vibration free operation
The body
Made in cast aluminum/bronze alloy, it is mechanically worked on CNC machining centers to ensure the highest quality components.
The ogive
It is built in aluminum/bronze alloy, with reference notches for pitch adjustment and removable terminal in electrolytic zinc for absolute protection of the propeller against corrosion.
Central hub
Suitable to contain the different types of Sail Drive System.
The conical couples
With helical teeth, they protect against any inconvenience even with the application of high powers.
Sail Drive propeller with tensioner
MARINE PROPELLER INTERNATIONAL PATENT FOR PROPELLERS WITH COUPLINGS
The Sail Drive model J Prop propellers also exist in a version with tensioner (SDB). This version was developed due to the presence of stern-drive strength issues on the market.
The tensioner, internationally patented by Marine Propeller, is able to effectively cushion abnormal accelerations in the event of sudden maneuvers or small bumps, avoiding consequences for the transmission system.
The coupling version boasts two models:
- SDP: fits small engines up to a maximum of 56 hp;
- SDB: available for engines up to 120 hp.
Yanmar Marine International has also tested two J Prop propellers with “sd20” and “sd50” tensioners, the results obtained show that “SDB” and “SDP” are products with technical characteristics compatible with the Yanmar guarantee.
Classic propellers available for Sail Drive
Propellers Type A from 13" to 18"
SDA Two-blade Type A
Body Ø 63
to replace propellers with diameter
from 13" to 18"
SDP Two-blade Type A
Body Ø 63
With tensioner to substitute blades with a diameter
from 13" to 18"
SDA Triple Blade Type A
Body Ø 63
to replace propellers with diameter
from 13" to 18"
SDP Triple Blade Type A
Body Ø 63
With tensioner to substitute blades with a diameter
from 13" a 18"
Propellers type A from 17" to 22"
SDB Triple Blade Type A
Body Ø 83
With tensioner to substitute blades with a diameter
from 17" to 22"
Propellers Type B from 17" to 22"
SDB Four Blades Type B
Body Ø 83
With tensioner to substitute blades with a diameter
from 17" to 22"
Doesn’t your engine exceed 250 horsepower?
Exploit of all the benefits of J Prop Eco Power!
Contact us to find out what the J Prop
is more suitable for you!
