2 blade and 3 blade props
08-29-2006 | 01:52 PM
#1
Thread Starter
Senior Member
Joined: May 2006
Posts: 356
Likes: 0
Received 0 Likes
on
0 Posts
From: , SWEDEN
2 blade and 3 blade props
If I have a 2 blade prop with the same diameter and pitch as a 3 blade. does the 3 bladed prop draw more amps and gives more speed?
08-29-2006 | 02:27 PM
#2
Joined: Oct 2005
Posts: 6,449
Likes: 0
Received 0 Likes
on
0 Posts
From: Tottenham/Orillia, ON, CANADA
RE: 2 blade and 3 blade props
it will draw more amps , , but probly not give it much more speed !
3 bladed are more surface area in the water ! so there is more drag !
3 bladed are more surface area in the water ! so there is more drag !
08-29-2006 | 04:22 PM
#5
Senior Member
Joined: Sep 2003
Posts: 1,103
Likes: 0
Received 0 Likes
on
0 Posts
From: Milton,
ON, CANADA
RE: 2 blade and 3 blade props
A crude rule of thumb for 3 blade props is if your boat runs well with a "Z" size 2 blade propeller, then if you want to run a more stable 3 blade prop, you need to prop down at least one size if not two. I.E; x640 2 blade is working good, then try a x437 3 blade.
Something like that. Sometimes in rough conditions going down in size but using 3 blades can be faster and more stable, the prop isn't out of the water as much and the torque effect isn't as strong.
Something like that. Sometimes in rough conditions going down in size but using 3 blades can be faster and more stable, the prop isn't out of the water as much and the torque effect isn't as strong.
