Tech Tips Mercruiser
What is the difference between 3-blade and 4-blade propellers?
Four blade propellers:
- Plane the boat faster than 3-blade propellers
- Keep the boat on plane at a lower speed
- Give improved mid-range speed at the same rpm as a 3-blade propeller
- Provide quicker acceleration than most three-blade propellers
- Run smoother than 3-blade propellers
- Have better holding power in rough conditions
- Are less likely to ventilate in sharp turns
Provide better low-speed handling
Are usually not quite as fast on the top end as a comparable three blade propeller