2 blade 3 blade whats the differance ????

[SweetAccord]

As far as the 2/3 blade part of your question, a 3 blade offers more bite or less slip than its 2 blade counterpart as there is always a blade in the water, while a 2 blade twice in each revolution will have very little blade area in the water. It is for this reason that the 3 blade will provide a smoother yet increased torque load on the system.

As true as this is, its the opposite for a two blade but add in top speed.

[jonjon00]

bbosncali - I think a V series prop on a high RPM cat would work awesome to whip up some margaritas. Call me when they are ready.
The blade profile on those props is designed for three point hydros. They don't have enough tongue to get the bite to bring a wetter boat like a cat or mono up on plain. And spinning them faster usually only makes this effect worse.
i would reccomend a smaller diameter for a three blade, like maybe 40MM. A coupel things that might be worth atry is a X440/3 cupped to bring the pitch up. or a higher pitched prop like your X646/3 cut down to the smaller diameter. I found it easier when I first started working props to get more consistant results by cutting the diameter down. it is much harder to get the blades to match when you are adding pitch/cupping.

[billyc42x]

Great Topic... I am also new to FE boats, and ventured out and purchased a V942/3. I did not work at all on my MG, Leopard 4074/2150 on 5s. I just cavitated, and the more throttle i gave it, the worse it got! It would not get on plane... I immediately swapped out the prop for the X642 and it runs perfect... 51.8 on a hand held GPS

[bbosncali]

Great Topic... I am also new to FE boats, and ventured out and purchased a V942/3. I did not work at all on my MG, Leopard 4074/2150 on 5s. I just cavitated, and the more throttle i gave it, the worse it got! It would not get on plane... I immediately swapped out the prop for the X642 and it runs perfect... 51.8 on a hand held GPS

Its ironic you said that cause I had the exact same problem with my mg trying the 942 this weekend it barely made it back to me almost like it had no prop at all on it.

[jonjon00]

I knew they would be good for margaritas!!
If one of you guys wants to get rid of that V prop let me know.
I am in the planning and acquisition phase of a rigger build and wouldn’t mind trying one for that.

[bbosncali]

Shoot me a pm ill sell it

[magnum500sw]

so how is the two blade faster ? i`d think that a three would be faster due to the fact there is always a blade in the water .

[AlanN]

A two bladed prop has less load (less surface area than 3 blades) so the motor can spin a higher rpm. 3 bladed props are good for acceleration but fall off on the top end. Unless you really know what you are doing and trying a saw setup the 2 bladed prop will have top speed v.s. a 3 bladed.

[magnum500sw]

are v series props even worth having ?

[bbosncali]

Qpdefinetly not for cats

[jonjon00]

are v series props even worth having ?

If you are running a 3 point hydro they work well.

[lohring]

Lots of information in this post:
http://forums.offshoreelectrics.com/...mp-other-types

Lohring Miller

[properchopper]

If you're looking for the highest one-pass straightline speed a two blade will get you there. I use 3 blade props on my P-Mono raceboats for the simple reason that they outpull two blade props coming out of turns. A heavyish P-mono needs to accelerate quickly out of turns, and that's where advantage is gained in heat racing.

[magnum500sw]

So I take it that the v series is only good for a long long straight pass.

[properchopper]

So I take it that the v series is only good for a long long straight pass.

On just about anything but a lightweight hydro, you can eat lunch while waiting for a V to hook up.