Prop Question

Airboat propeller discussion.
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cdid
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Prop Question

Post by cdid » Sun Dec 14, 2014 8:13 am

Im sure theres about a million prop question posts on here...

I am having a 520 conversion motor built and i want some opinions...

Boat is an older hammant and is not the lightest thing on the market...

My question is:

2 blade or 3 blade?

Looking at the 2 or 3 blade whisper tip 72"

Or the 2 or 3 blade ngq with winglets....?

Any help or opinions would be great

Thanks
13' Palm Beach Full Deck (under construction) GITSO 520 72" NGQ

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SteveReid
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Re: Prop Question

Post by SteveReid » Sun Dec 14, 2014 11:14 am

Get in touch with Plumcrazy! He will fix you up.

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Big Casino
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Re: Prop Question

Post by Big Casino » Sun Dec 14, 2014 1:09 pm

I'm about to put my 3 blade, 72" Whisper Tip narrow up - For SALE ...

Like new !!!

It's on my 520 gitsu conv, now. Be a great prop on a smaller boat like yours !!
"...This above all: to thine own self be true..."

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goldhunter_2
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Re: Prop Question

Post by goldhunter_2 » Sun Dec 14, 2014 4:28 pm

you didn't say 4-6 cylinder 520 conversion

I am partial to some of the older style blades if a 220 conversion then two blade 72" sen Q or 72" water walker signatures or the blade 72" sen H , if a pe-90 conversion three blade 72" H or two blade 70" signatures or Q's
.


Support our future , get a kid involved in the outdoors!!

:rebel:



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ptr34
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Re: Prop Question

Post by ptr34 » Sun Dec 14, 2014 6:57 pm

2 blade 74" NGQ all day. I have on can test see if u like it
if u don't run dry .then should have gotten a bassboat
tons videos on YouTube ptr34

cdid
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Re: Prop Question

Post by cdid » Mon Dec 15, 2014 2:04 pm

Whats that whirlwind going to sell for??


Terry, thats where im going if i dont find a deal on something used.. lol more than likely thats where ill end up Thanks!!1
13' Palm Beach Full Deck (under construction) GITSO 520 72" NGQ

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WhirlWind Propellers
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Re: Prop Question

Post by WhirlWind Propellers » Mon Dec 15, 2014 8:46 pm

For your 520 conversion, if you think you will be putting out 250 to 300 hp, you have a number of excellent propeller choices to think about.

One of the best all-around propellers is our 2-blade 72" Whisper Tip propeller for $1690 - a great performer at a very economical price.

If you were 280 to 300+ hp, you would want to also consider the 3-blade 72" Whisper Tip Narrow (like the one Big Casino offered - which is most likely in perfect condition and a great opportunity to buy), this is the "cadillac" propeller choice for motors like yours that make good power. The 3-blade will be extremely smooth and quiet in addition to performance.

And then, there is the no compromise propeller, the 4-blade 72" Excalibur with our exclusive X-Core™ technology. X-Core™ allows the blade to be made extremely light and stiff for fast, instantaneous thrust capability. The Excalibur delivers all the benefits of the smaller Razor X, with less blades, and all the mid-range and low-end thrust of the wide blade Whisper Tip series.

Sincerely,
Patti
:proud:

Bdriller
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Re: Prop Question

Post by Bdriller » Mon Dec 15, 2014 10:06 pm

WhirlWind Propellers wrote:For your 520 conversion, if you think you will be putting out 250 to 300 hp, you have a number of excellent propeller choices to think about.

One of the best all-around propellers is our 2-blade 72" Whisper Tip propeller for $1690 - a great performer at a very economical price.

If you were 280 to 300+ hp, you would want to also consider the 3-blade 72" Whisper Tip Narrow (like the one Big Casino offered - which is most likely in perfect condition and a great opportunity to buy), this is the "cadillac" propeller choice for motors like yours that make good power. The 3-blade will be extremely smooth and quiet in addition to performance.

And then, there is the no compromise propeller, the 4-blade 72" Excalibur with our exclusive X-Core™ technology. X-Core™ allows the blade to be made extremely light and stiff for fast, instantaneous thrust capability. The Excalibur delivers all the benefits of the smaller Razor X, with less blades, and all the mid-range and low-end thrust of the wide blade Whisper Tip series.

Sincerely,
Patti
:proud:
now that's the proper way to conduct business (you go patti) you see guys shes informative, polite, factual, told the man several alternatives some of which did not profit her company directly, and above all was totally honest!!

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aherr520
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Re: Prop Question

Post by aherr520 » Mon Dec 15, 2014 10:51 pm

Bdriller wrote:
WhirlWind Propellers wrote:For your 520 conversion, if you think you will be putting out 250 to 300 hp, you have a number of excellent propeller choices to think about.

One of the best all-around propellers is our 2-blade 72" Whisper Tip propeller for $1690 - a great performer at a very economical price.

If you were 280 to 300+ hp, you would want to also consider the 3-blade 72" Whisper Tip Narrow (like the one Big Casino offered - which is most likely in perfect condition and a great opportunity to buy), this is the "cadillac" propeller choice for motors like yours that make good power. The 3-blade will be extremely smooth and quiet in addition to performance.

And then, there is the no compromise propeller, the 4-blade 72" Excalibur with our exclusive X-Core™ technology. X-Core™ allows the blade to be made extremely light and stiff for fast, instantaneous thrust capability. The Excalibur delivers all the benefits of the smaller Razor X, with less blades, and all the mid-range and low-end thrust of the wide blade Whisper Tip series.

Sincerely,
Patti
:proud:
now that's the proper way to conduct business (you go patti) you see guys shes informative, polite, factual, told the man several alternatives some of which did not profit her company directly, and above all was totally honest!!
I agree
aaof member

swampdragon
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Re: Prop Question

Post by swampdragon » Tue Dec 16, 2014 8:09 am

That's why I run a Whirlwind and Big Casino does have a great prop at a good deal.

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Hog Guts
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Re: Prop Question

Post by Hog Guts » Tue Dec 16, 2014 10:47 am

I had the same motor and a 72 NGQ and it ran great. I'm sure any of the previous options would work great too and are less money. Ptr offered to let you test one might want to do that. I tested one from him and I wouldn't give it back :)


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