Composite Props

[jeff7599]

I just bought a composite 4 bladed prop from Comprop for my 88hp Evinrude. Anyone have any experience with Comprops. I bought mine from Bass Pro.

 

[John Reynolds]

Re: Composite Props

If the prop takes a hard hit, the composite material will give before a gearcase part will. probably a good sacrifice. but I don't think that a damaged composite prop can be repaired, but I may be wrong. Composite materials containing glass and/or carbon fibers have a high tensile strength, and can take a lot more RPM's than a boat motor can provide.

 

[Oil Man]

Re: Composite Props

I use the CompProp on my 115 Merc Walleye boat. They work great. Like John said, if they hit anything they are trash, but it can save other parts. They are also nice to keep as a spare prop.<br /><br />Dave

 

[donie]

Re: Composite Props

I have one on my 3.0 ltr merc. I only have it a few weeks and there is alreadt a slot chipped out of one of the blades. It obviously hit something in the water as only one blade is damaged. It's small enough to not casue vibration or anything though so I'm not too worried. This is the only disadvange is see with them thou as SS is very expensive. Aluminium props tend to flex under power so they are no liked too much by the performance freaks. Personally, I don't notice my difference in my boat. Worth buying two in case you trash it on something.<br /><br />Donie

 

[whosmatt]

Re: Composite Props

i run a composite prop from piranha propellers... these are a little different, in that they consist of an aluminum hub (covered in a composite material) with slots, and interchangeable composite blades. This means that if you break a blade, you only need to replace that blade. this also means that you can easily repitch without having to purchase an entire propeller. I have used this prop for about a year with no problems... i like it a lot. The blades are designed to shear on impact (as opposed to a regular hub or shear pin) to protect the gearcase from damage. i should mention that i had my first impact a few weeks ago, i hit a log hard enough to kick the motor out of the water and give me a scare... no damage to the prop however. they seem pretty tough.

 

[Kenny Bush]

Re: Composite Props

Jeff, composite breaks pretty easy, as you can see from other posts, but that may be a good thing, if you are fishing Fork Toledo, or Rayburn(the stumps). It is better to break a prop than a prop shaft........ However, I am on Texoma with very little structure and a lot of sand......My composite prop would shear too often when hitting sand(sandy lakes have more shallows and sand bars everywhere). I switched to stainless with a hub, and it has lasted for years......I have hit sand several times with no damage. I chose the hubbed version just in case I hit a rock or structure, the hub will blow....and now they make the two piece hard plastic hub you can change on the shore.......anyway, look at where you will be spending most of your time on the water and choose wisely...

 

[G DANE]

Re: Composite Props

I am looking for a new prop for my 115 hp Evinrude, 13 x 19 or 21. How is the performance with composite props ? I see they are a lot cheaper than sst, especially if you buy the one-piece type. Somewhere starting from 30 $ - very favourable.