Prop Dealers

Airboat propeller discussion.
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digginfool
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Prop Dealers

Postby digginfool » Wed Jan 13, 2016 7:57 am

Sending my Excalibur blades out to repair some minor tip damage. Want to try either a Vortex or RazorX while they are gone. Thinking along the lines of 5 or 6 blades, 70 in. PM me your contact info if you have something I can try.
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Re: Prop Dealers

Postby getchasumairboats » Wed Jan 13, 2016 4:42 pm

You have been through 2 props in a year lol now ya wanna test someone else's lmao
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digginfool
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Re: Prop Dealers

Postby digginfool » Wed Jan 13, 2016 5:05 pm

getchasumairboats wrote:You have been through 2 props in a year lol now ya wanna test someone else's lmao


That's true but neither incident was due to me. As far as this incident, most people would let it go. I've seen far worse on many boats. I lost maybe a quarter inch off the tip of two blades.
“When plunder becomes a way of life for a group of men living together in society, they create for themselves in the course of time a legal system that authorizes it and a moral code that glorifies it” - Bastiat

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Re: Prop Dealers

Postby Dirtman » Wed Jan 13, 2016 9:20 pm

Did you have a warp on your sled when you got it?
IO520 on a 12"6" Lazer with a 72" Q #20814
Build in progress: 14x7'9" JB w/ GSO540 &80" Razor

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digginfool
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Re: Prop Dealers

Postby digginfool » Wed Jan 13, 2016 9:41 pm

No. This is the first issue with my sled. Getchasumbrains is talking about two different incidents, two different boats. First one, put a new engine on my boat, installed and pitched prop. My mechanic left a rack of sockets sitting on top of the motor that went through on first test run. That was on my DB and was a 4 blade 82" NGR. Had a Q on my sled before I swapped out my 320 for a 540. Installed a bowtie Excalibur. Let my 17 year-old son take boat out New Years weekend and came back with tips knocked off two blades. Stop on rudder was bent over and blades hit steering rod. Most likely, somebody blew the sheet out of my rudders. No way son pushed the handle that hard.
“When plunder becomes a way of life for a group of men living together in society, they create for themselves in the course of time a legal system that authorizes it and a moral code that glorifies it” - Bastiat

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Re: Prop Dealers

Postby AceNtheHole » Thu Jan 14, 2016 12:15 am

I feel for ya Diggin. Especially when someone else is to blame for your misfortunes. Might wanna try a 6 blade warp on a double hub. Off set blades with slightly different pitches. Set up like a 3 blade bowtie if you could imagine. My boy runs one set up like that on his boat, and it pushes like Ndomikong Suh! and it tops out over 65mph easy. And it is on a GPU. A dang GPU! Imagine how that set up could run on your 0540. Why hell, you could reclaim your reign as the 'King of the Glades'.

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Re: Prop Dealers

Postby Bdriller » Thu Jan 14, 2016 1:10 am

I happen to have on hand a rubber mallet and a 100lbn anvil i could lease for say $100.00 with a $1000.00 deposit if this would help!

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Re: Prop Dealers

Postby plumcrazy » Thu Jan 14, 2016 3:28 am

Let me put a signature on it

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Re: Prop Dealers

Postby digginfool » Thu Jan 14, 2016 12:47 pm

plumcrazy wrote:Let me put a signature on it


My engine is making close to 300 HP (SV 540 with 10:1 pistons and 290 cam). I'm trying to get away from a 72" prop since I'm currently pushing the limits at that length. Would a 70" Signature end up being over-pitched to handle that kind of power?
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Deano
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Re: Prop Dealers

Postby Deano » Thu Jan 14, 2016 1:00 pm

digginfool wrote:I'm trying to get away from a 72" prop since I'm currently pushing the limits at that length.
Is that to say that 72" is at the outer limits, cage wise ?

Plum may know better, but I would think a 70" three blade would be perfect.
I've run a shortened 3 blade Signature on a Cadillac, and it was an animal.
Those were made for that effort, but I'm sure Plum could set you up.
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Re: Prop Dealers

Postby digginfool » Thu Jan 14, 2016 2:02 pm

Deano wrote:
digginfool wrote:I'm trying to get away from a 72" prop since I'm currently pushing the limits at that length.
Is that to say that 72" is at the outer limits, cage wise ?


Yes. We put a dogleg into the steering rod to make the clearance along with a stop on the rudder to fit the 72" I have now. I had a good inch of clearance from the rod unless pushed too far to the right, thus the stop. Unfortunately, the stop bent and allowed the rudder to go too far. We're going to put a longer dogleg in it this time to stop that from happening again, as well as a stouter means of making sure the rudders don't turn too far.
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Re: Prop Dealers

Postby plumcrazy » Sat Jan 16, 2016 2:01 am

if you have 300 hp a 72 inch 3 blade sig would climb a tree

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KR23
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Re: Prop Dealers

Postby KR23 » Sat Jan 16, 2016 9:14 am

put a 68in 5 blade and put some pitch to it, she'll run. You still got the Q and what size was it.
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digginfool
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Re: Prop Dealers

Postby digginfool » Sat Jan 16, 2016 10:13 am

The Q is only a 68". It would never work with the 540.
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Re: Prop Dealers

Postby KR23 » Sat Jan 16, 2016 12:24 pm

Image

If you still got the Q maybe we can work a deal for the 5 blade that you see in the pic, 68 in 5 blade razor X that was on my 0540, I ran it on a 10/1 and 12/1 motor, I sold this boat minus motor and prop, I need a prop for my kids boat I just finished.
"Freedom is never more than one generation away from extinction"

http://www.performanceairboats.com/Home_Page.html (407)349-1209

Warrior AirCraft Engines: (772)260-4235

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KR23
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Re: Prop Dealers

Postby KR23 » Sat Jan 16, 2016 12:27 pm

Image

If you still got the Q maybe we can work a deal for the 5 blade that you see in the pic, 68 in 5 blade razor X that was on my 0540, I ran it on a 10/1 and 12/1 motor, I sold this boat minus motor and prop, I need a prop for my kids boat I just finished.
"Freedom is never more than one generation away from extinction"

http://www.performanceairboats.com/Home_Page.html (407)349-1209

Warrior AirCraft Engines: (772)260-4235

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Re: Prop Dealers

Postby Tony480 » Sat Jan 16, 2016 5:03 pm

Switch hubs and make the Q a 70"

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Re: Prop Dealers

Postby chuckitt@earthlink.net » Sat Jan 16, 2016 5:31 pm

3 blade 70 inch Cypress = Rocket Ship. What do you think Plum?

Chuck

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Re: Prop Dealers

Postby akblackdawg » Sat Jan 16, 2016 9:36 pm

i will agree with you that it is smart considering your past prop experience, to use somebody else's prop for as long as you can. wish i had thought of that
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Re: Prop Dealers

Postby chuckitt@earthlink.net » Sun Jan 17, 2016 8:38 am

I know, most everyone is thinking the Cypress blades are for those little 4 bangers.
2 Blade 66 inch is for 150 HP = 75 HP per blade @ 66 inch
2 Blade 68 inch is for 175 HP = 87.5 HP per blade @ 68 inch
2 Blade 70 inch is for 200 HP = 100 HP per blade @ 70 inch
3 Blade 70 inch @ 100 HP per blade = 300 HP. 3 Blade 68 inch = 262.5 HP ( perfect for SV 0-540 and DD Caddy )
Shorter Props let you lower the engine stand and give you a lower push point which we have seen benefits.
I bet if you try it and don't like it, Andrew would give you your money back if you don't damage the prop.

Chuck


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