3-Blade folding propeller

3-Blade folding propeller

Sailors choose the 3-blade Flexofold because, under power, it is the most efficient 3-blade prop available. Looking at the profile and cross-section of the 3-blade Flexofold, you will see a powerful shape that will drive your boat well, converting more of the horsepower into thrust than any other propeller. Yet, the tight triangle formed by the blades when folded, is very low in drag.

Read more about the test from Yachting Monthly (UK).

Generally speaking, when compared to a 2-blade, the 3-blade will give you better performance when powering against a head sea and while maneuvering in both forward and reverse.
flexofold, 3-blade folding propeller, saildrive

From 8 knots to dead-in-the-water...

In one test, a 63 foot Hanse went from 8 knots ahead to dead-in-the-water in one boat length! Who said a folding propeller can’t back up? They haven’t tried a Flexofold! In addition, if there is something out of alignment or out of balance in the drive train that can cause vibration, the 3-blade will run a little smoother.

Available diameters

The 3-blade propeller is available in diameters from 14” through 26” in many different pitches in each size. A zinc anode and its mounting plate, cover the blade gears preventing barnacles or other “creatures” from becoming a problem.
The propellers are delivered for installation on standard S.A.E., Whitworth and Metric tapered shafts as well as sail drives.

flexofold 3blade folding propeller, saildrive, folded
The Flexofold 3-Blade folding propeller for saildrive.
Folded for low drag and minimum risk of catching lines or seaweed.

The Flexofold 3-Blade folding propeller for shaft.
Folded for low drag and minimum risk of catching lines or seaweed.

flexofold, 3blade, protection

flexofold 3blade folding propeller, protection

The zinc anode and its mounting plate protecting the blade gears and keeps the technique in a safe environment.