Outrigger transom bouncing - need help.

[RiggerSpeed]

Predator outrigger: the rear end is bouncing and isn't stable. It's fine til you get to like 50-100% throttle then it starts bouncing.

Need suggestions on what might be causing this.

-COG off?
-I've moved the battery backwards/rearward 5/8" to help load the rear.
-P735 prop

[TRUCKPULL]

What motor (size and KV) , batteries, hardware???
We need more info.
Larry

[NativePaul]

Shaft pointing downwards too much, and/or CoG too far forward, and/or too much prop lift, those P series props don't have that much lift but the more pitch you have the more lift comes with it, you could try cupping the blades and/or an X435 (I would say an X438 for a similar amp draw, but that means swapping to a 3/16 shaft, and lthe lower lift may give you more usable speed anyway (despite having less power available)).

[RiggerSpeed]

My setup:
3650, 3900kv 5mm shaft
3S, 5000mah Gen Ace
Seaking 120a
Octura P735 prop

[NativePaul]

x435 will still give you good speed wit that gear when you get it dialed in.

[boredom.is.me]

Why not an m series prop?

Edit:
I see why.

[grsboats]

Too much lift with the 735..reduce to X435 with no strut mod to verify how your boat runs....basically your strut must be positioned to 0 degree.Gill

[Fluid]

At least part of the problem is the prop. It has less lift than the 1700 series it is based on, but still too much for a modern rigger. Where is the CG? That is the next thing to change, move it back 1/2" to 1" using balast if necessary. How fast do you want to go and how much run time?


.

[coolcarwrench]

Photos of you set up could help