3 Blades for a A/C...

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duckluv26
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3 Blades for a A/C...

Post by duckluv26 »

looking to change props on my 260 lycoming. have a 72" Power Shift now and not very happy. what are some other recommendations? considering a 3 blade Super Snapper. any input would be appreciated......thanks.

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Whitebear
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Post by Whitebear »

Duck I would take a good hard long look at an old reliable company like Sensenich and check out their Q-series props.

I hear nothing but glowing reports on Sensenich.

Scotty
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darkwader
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Post by darkwader »

Duck I running a 3 blade H series Sensenich and it does the job
YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE DUCT TAPE.

froggigger1
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Post by froggigger1 »

3 blade q- series seinsich.

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frank w.
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Post by frank w. »

ihave 220 with 3blade ss whirlwind and love it

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Skeeter
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Post by Skeeter »

I have 3 blade Sensenich 72". I tried the Q series outstanding prop. I would go with Sensenich if at all possible.Great product and Don is super to work with.

Larry
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Post by Larry »

I have a 70" sensenich h series 3 blade for my 520. I have not run it yet but a friend of mine has the exact same prop on his 300hp gpu and it works really well on that boat. It snaps up real quick and smoother sound then the 2 blades that I ride with.

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Post by BigMac »

I have a 72" H sensinch three blade with 7 hrs total time . I need a bigger prop for my boat. I can tell you it works great on a 260/540 772-216-0712 1800.00 obo hub and bolts included.

duckluv26
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Post by duckluv26 »

hmmm.....so i guess it would be sensenich. what the deal though? do they make a narrow, medium, wide and super wide Q series or is the Q series just for wide and super wide?

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swampjet
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Post by swampjet »

Duckluv,
Don't make a move just yet. Look at all options. I am running a 72" powershift Signiture 2 blade which is on loan to me by Bobby Corey( Powershift Patty's husband). He and patty have just got in several sets of Cypress series blades and next weekend Bobby and I are going to do some testing useing a 3 blade cypress series on my 520 (285hp) and 4blade setup on his 520 (300hp). We will also be doing thrust and sound measurements on all setups. I'll post findings when we are done.
Also I tried a 3 blade Q series 72" on my boat. It wasn't the best on my boat.

Bob
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swampjet
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Post by swampjet »

Ducluv,
Also the 3 blade H series is a great prop for a 540. A lot of folks here in citrus county are changing from Warp 6blade staggered to 3 blade H series.
I would say a lot of people swear by them but then a lot of people just swear. :lol:

Bob
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duckluv26
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Post by duckluv26 »

swampjet, do you like your 72" PS...? i honestly expected more out of mine. it will be a few weeks before i do anything but i am very eager to hear your results. at this point right now, i'm torn between the 3 blade H and the 2 blade Q. to put it this way, when i run nasty stuff, i usually cruise it at about 2300 rpms.....so, with that said, i'm leaning toward the Q for its low end push. very rarely do i ever peg my engine out. would this eliminate the need for the 3 blade H or does it have good low end push as well? thanks.....

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swampjet
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Post by swampjet »

Duckluv,
For some history, I had a 72" terminator composite prop on my 520 and it was "OK". but I knew it wasn't as effeceint cutting and pushing the air as could be. Bobby and Patty Corey (Powershift) have become good friends of mine and my wife and they wanted to show how much better the Powershift is. They went as far as pulling the 3 blade (Signiture Series)off of Bobby's boat and putting it on mine. The 3 blade did great with great push and smoothness but it would max out at 2800 RPM. I could run it but it doesn't leave room for play. I have 285 HP while Bobby has 300 HP. He can run it. That is why we are gonna play with the Cypress Series because they are just a little shorter and just a little narrower.
It depends on how you like to run that determines to a great deal of what prop configeration to focus on. Do you rely on fast snap? Do you have a light or heavy boat? Do you prefer to cruise at lower RPM? Lots of questions. What RPM do you max out at? Is sound a issue with you?
A 540 is a great engine and there are LOTS of options.
The Q series are good as are the H series (narrow in 3 blade)Sensenich.
It does help to have good friends to have a "prop swap party".
I'll keep everyone updated after we do the testing and post the info.
And yes I do like the 72" 2 blade Powershift but I have become fond of 3 blades.

Bob
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duckluv26
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Post by duckluv26 »

i really don't need a huge amount of snap. i know my marsh very well and i know beforehand when i need to turn it up a little. my main concern is that i may cruise a dry ridge with 3 ft tall grass for a few miles straight. i'd rather be able to cruise that at 2200 as opposed to 2500. i'd also like to cruise at 1700 as opposed to 1900 in open water. this is strictly a hunting boat so its usually loaded with 3 people and a dog. i would like to cruise in deep water loaded at no more than 2000. this aspect has me leaning to a 74" Q 2 blade. from what i gather the 3 blade is more for instant acceleration with a higher cruising rpm. am i right? i really don't think i could turn a 3 blade medium blade. very rarely do i turn my boat up over 2500. i can count on one hand how many times i have. i run a 13 x 8 ultralite air ranger. runs very well. i can crawl over 3 and 4 foot levees with 4 people in it and never turn over 2500 rpms. do you think i could turn a wide 74" Q 2 blade? whats the performance differences between the 3 blade H and the 2 blade Q? too many options.....????

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swampjet
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Post by swampjet »

Duckluv,
I said I would get back to you but I can't give out the figures yet as we are still working on some things. But I need to ask what diameter is the MOST you can SAFELY run in your cage? Also, you said you don't run over 2500 RPM. You would do a lot better setting your prop to max your motor at 2800-2900 RPM. Do that first and soon I'll be able to tell you other ways to get more push without changing your whole prop.
Don't get rid of your Signiture just yet. We are finding interesting data here.

Work in progress.


Bob
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rjonesboy
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Post by rjonesboy »

I just changed to a 72" 3-blade H series from a 72" 2-blade H-series and the difference is amazing. I can do more at 2500 now than before at 2950. Runs dry much easier, cruises at 1700, stays on plane at 1400 in deep water, and has more water speed if I need it. Very happy with it on my 13x7.5 Alumitech.

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Post by Olf Art »

rjones, I'll bet the prop feels and sounds smoother too, right?

A three blade prop is usually a lot smoother than a two blade because the third blade stabilizes the plane of the other two blades ...... takes out any tendency to wobble. Plus, you can get more push without having to change your prop cage. I love em.

rjonesboy
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Post by rjonesboy »

Olf Art , I guess I forgot to mention how much smoother and quieter it is. Thanks.

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calbrigsr
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3 Blade

Post by calbrigsr »

What engine is the 3-blade on?
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Post by rjonesboy »

dual-mag GPU with domed pistons

duckluv26
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Post by duckluv26 »

swampjet, i have more than enough room for anything cause my boat is 8' wide. probably 84 inches......i know i can't swing that much....my rpms are set to 2850 right now. i'll be waiting for your data. thanks!!!

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Post by blackpowderscout »

Bob..any results yet???

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swampjet
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Post by swampjet »

Everything is on hold right now. Life seems to get in the way of fun. :?

Bob
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BATTLE READY
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Post by BATTLE READY »

I would like to hear from Mike Thurman. He is our local Sensenich dealer and I think he has sold bunches of 3 blades to the guys down South.
"Experience is a tough teacher, she gives the test first and the lesson afterwards"

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