Boat Cavitating

[mtnbikefreak]

Hi Guys, My boat seems to be cavitating up and down when I run on 11.1V batts. On 7.2 it seems to be ok. Using a brushed monohull setup. Could it be a prop problem ? Prop too small ?

[rogerp1]

some pictures and info on the type of boat maybe helpful

[Adrianli]

Prop pitch n size problem. Lots of trial n error to find the rite prop.

[mtnbikefreak]

Thanks for the reply.

The boat is a Proboat mini-v which is a very light setup - modified the drive to a flex. So do i change to a bigger prop ? That should mean a higher amp draw right ?

I was talking to Mok today at JH, he was saying that it could be a CG problem as well. Any pointers ?

The boat cativates like in the link. But only on 11.1V when on full throttle

http://www.youtube.com/watch?v=RIq14vtYUaQ

[Adrianli]

Confirm CG out.

[Adrianli]

I tink u got the term Cavitating wrong leh.

http://en.wikipedia.org/wiki/Cavitation

On the link ur boat is moving fine. Cavitating means prop moving but boat not moving, instead creating lots of bubbles.


I tink u should use the term pitching.