Back to the main site

What prop as a back-up

Dan S

Dan S

Well-Known Member
Messages
134
Reaction score
28
Location
Minnesota but boat in NW Wisc.
Well, you can see the specs on my boat below.  It's coming with a new prop from Yamaha supposedly designed for pontoons.  Aluminum of course with a 12 degree pitch and a 13.5" diameter.  The blades have a little twist or curve in them too.  I'm ok with this prop but I'm wondering if there is a prop that is better suited to my configuration.  I sort of like quick dashes and like to get on plane sort of quickly.  I don't necessarily want it to bog down to badly either.  This will be a second prop I will buying as a back-up or maybe my primary prop depending on what suggestions I get.  Thanks
 
Have you had the boat out yet? Do you know the WOT and speed? You need that info before you go changing props.
 
I second that ^^^^ it is better to know what your current prop does, before you buy a spare. Let the spare be the prop that does what your current prop doesn't so you can switch them out for different uses.

On a runabout many years ago, I had a Comprop as a spare prop. It was so good, it became my main prop. It's only awesome for HP up to 150 and boats less than 3,000lb, so I can't get one for my current setup. But with a 115 - it would work great. The Comprop is composite material. And individual blades can be changed out. If there was a Comprop suitable for my size motor and boat weight, I'd get one again. For operating in unfamiliar water, it was absolutely top notch. Just something to consider.

Another benefit is the ability to have one hub and different sets of blades of varying pitch for different applications.

Comprop.com for more info on that product.
 
Won't get delivery of the boat until April 27th.  I've only seen it at the dealer.  You're both probably right in waiting to see the RPM's and speed at WOT.  Thanks
 
Interesting Prop, I am going to have to research it.  My question is, wouldn't you want either the prop or hub to fail on a prop strike so it does not do damage to the lower unit?  I guess as long as the composite is not too strong it would be alright.  I boat in a lake that the water level is controlled by a dam and it can change quickly, add to that a quite rocky lake.  Most people use aluminum props because of this.

I will be using the stainless Enertia with the Flo Torque hub that is supposed to fail on a prop strike so you don't damage the lower unit, I hope it works as advertised.

My backup prop is aluminum, I don't want a $600 stainless prop just sitting in my boat hopefully to never get used.
 
I also have an Enertia with the Flo Torque Hub .

The Piranha looks like the blade/blades will give before the hub ,which has a lifetime warranty 
 
Last edited by a moderator:
The Piranha and the Comprop that I suggested earlier are essentially the same...different names.

I have used them and like them, the blades shear off in the event of a prop strike. You the remove the hub-side of the blade and slide in a new blade. Wreck one blade. Replace one blade.
 
Might have been a Piranha that I had then...
 
JeffS said:
I second that ^^^^ it is better to know what your current prop does, before you buy a spare. Let the spare be the prop that does what your current prop doesn't so you can switch them out for different uses.

On a runabout many years ago, I had a Comprop as a spare prop. It was so good, it became my main prop. It's only awesome for HP up to 150 and boats less than 3,000lb, so I can't get one for my current setup. But with a 115 - it would work great. The Comprop is composite material. And individual blades can be changed out. If there was a Comprop suitable for my size motor and boat weight, I'd get one again. For operating in unfamiliar water, it was absolutely top notch. Just something to consider.

Another benefit is the ability to have one hub and different sets of blades of varying pitch for different applications.

Comprop.com for more info on that product.
Click to expand...
so, for a second/spare prop would you deliberately get something different than the existing?

ie: we have a stainless steel Yamaha Reliance 14.5 x 15" pitch and last year got 41.2 mph at 5900 RPM (best of the season) on our F150. What would be a good choice to have on hand for an alternative or is just getting a composite type prop in the exact same diameter/pitch be good enough?

(forgive me if this sounds naive, this subject is out of my realm but we DO need a spare prop. Thanks)

Edit: I'm finding a lot of prop info/explanation on the Members Zone: Props and Power  discussion forum. That's the problem on this website, finding answers before asking : / (just for any future newbies like me!)
 
Last edited by a moderator:
You must log in or register to reply here.
Back
Top