Counter-Rotating Props - Direction for Offshore??

[Darin Jordan]

Someone told me once, but I'm drawing blanks at the moment...

Counter-Rotating the props has varying affects on handling. One way is better for straight... the other way is better for turning...

Can someone remind me which is which? Thanks!

[CornelP]

Inside is a lot better for straight lines, outside for turning, it makes it a bit more loose. I just switched back to inside on a Fightercat Daytona (Genesis) for straight speed and you can see a big difference in how the hull is planted...

[Mattwarner]

I have inwards on my 32" rivercat and seems to like it both handling and speed.

[Bullwink]

I had my twin EKOS turning inside and I could not turn the boat without flipping, even at slow speeds. I am going to try outside rotation this weekend and see. However, the lack of turning ability may have been due to some other factor or it may be dependent on the hull.

[Bullwink]

BTW, I am running twin FC Suppo 2200KV outrunners on 4S. It flys down the straightaway and is actually, too fast for our pond, I just couldn't turn it, even running on 3S. I am taking it out to the lake this weekend so I will have more room to manuever.

[srislash]

I had my twin EKOS turning inside and I could not turn the boat without flipping, even at slow speeds. I am going to try outside rotation this weekend and see. However, the lack of turning ability may have been due to some other factor or it may be dependent on the hull.

Ditto: Mine is the FC Shocker and much better with outward turning and real good with another bit of tuning.

Shawn

[sanyijr]

It would make sense.... Inward turning would lift the back out of the water and/up, making less resistance and yes, less planted in turns.

Outward turning would pull the back end down, slowing you down, but planting well in turns..... At least intuitively makes sense....

[b20btec]

I didn't catch this thread until now. On my particular boat on a twin setup, props turning outward away from each other I could not get my boat to turn for the life of me without it losing traction....like driving a car on a slick road. Switched it to inwards towards each other, boat ran smooth and turned really nice.

[Darin Jordan]

Thanks guys... looks like I'll start with them inward and see where it goes from there...

[launchpad]

Hello;
I have a twin genesis and I am confused about the prop direction.I know you can get right hand and left hand props which I have.Would it not cause problems by having props turn towards each other.Also the flex shafts are right hand turn and left hand turn, by reversing them would it not unravel the flex shaft?Also what is the standard rotation on a single pro setup. Thanks

[egneg]

Standard is left hand. You have to swap the flex cables as well as the props and motor wires.

[launchpad]

The flex cables that are in it are right hand and left hand turn along with the props for this.What I need to know is; does one turn clockwise and the other counter clockwise.I purchased everything from OSE. Thanks......

[srislash]

The flex cables that are in it are right hand and left hand turn along with the props for this.What I need to know is; does one turn clockwise and the other counter clockwise.I purchased everything from OSE. Thanks......

Yes,one clockwise and one counter.
Such as this



These are set up for inward direction for my Geico.

[bob_t]

On Fountain performance Vee hull boats (full size twins), rotating "in" (as shown in the picture above) is a little faster, but takes away from low speed handling and especially docking. I would think it would be the same for scale size Vee hulls (even though docking is probably not a factor ). It would be interesting to have a staggered setup in a scale boat, as that is even faster than typical "side by side" setup, too.

[launchpad]

Thankyou very much;just what the doc ordered...............