Which Prop Is best...

[flwestcoastboater]

I currently have what i believe is the original prop on my boat... A pic of it is attached, it measures 4 inches to center I am not sure of its pitch. I am using it on a 5hp nissan motor strapped to a 9 foot inflatable. I am wondering, is this prop ideal for speed with about 150-280 lbs in the boat?








also... When there is less weight in the boat (goin out alone) for some odd reason, when I reach a plane, it will sometimes randomly rev extremely high, and seem to disengage from forward, once this happens I have to lower the throttle all the way and restart to a plane. I am ridding at too high of throttle for the prop?

Also, my prop when i removed it today was not on tight, could this be my problems?

thanks for any help in advance!

-justin

 

[steelespike]

Re: Which Prop Is best...

Most likely the the reving is the prop ventilating (losing bite).I think some infateables are prone to venting.Most likely a new prop would resist venting
better also you could try trimming in a notch(prop closer to the boat).
I can't speak specifically to your prop but I would think the nut should be at least snug.

 

[flwestcoastboater]

Re: Which Prop Is best...

Ya, the bolt for the prop is probably one of the main issues, I am going to snug that up in a little bit. I think you are correct with prop ventillating on the inflatables, probably due to the light load, I say this because usually if I have two people in the boat it rarely happens.