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EasTexDux88
MMT 1000 Club
Joined: Tue Sep 29, 2009 3:08 pm Posts: 1069 Location: Longview Tx
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 9x3 Prop
Hey guys, Gettin ready to take the 16 out for her maiden voyage tomorow and thought id check the prop out. Well i measured it at the widest spot and she only came out to 8.1875.  Thats quite a bit under the 9 inches i thought it should be. Did i measure it right? and is there an alternative to the go devil props (kinda pricy)? If not I dont mind goin back with a gd prop just tryin to keep up with the budget. Thanks
_________________ ETD88 09/28/09-05/14/2010...
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Wed Oct 21, 2009 8:44 am |
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b_coonass
MMT 1000 Club
Joined: Thu Mar 26, 2009 2:08 pm Posts: 1229 Location: morgan city, louisiana
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 Re: 9x3 Prop
_________________ 36hp Pro-Drive with EVT exhaust pushin a 17x42 custom skiff
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Wed Oct 21, 2009 4:17 pm |
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GeeLeDouche
MMT Pro Member
Joined: Thu Jan 15, 2009 1:24 am Posts: 455
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 Re: 9x3 Prop
I picked up a "Ron Hill" (aka-ebay prop) 9x5 prop to replace my 9x3 on my 16 GDLT and it runs my 16 a LOT faster top end. but going through the really skinny stuff, it doesnt do so hot. but in about 10 inches + it runs great. anywho. I think my prop was around 130 bucks shipped, but that was 2 or 3 years ago. I'd buy another one from Ron. his prop has done me really good so far. I think my next prop will be a 9x4 though. just something to think about.  what kinda RPM's are you running with your current prop anyways? do you know? Gee
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Wed Oct 21, 2009 6:11 pm |
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whitelightning
MMT Pro Member
Joined: Thu Mar 26, 2009 1:53 pm Posts: 77 Location: DE, MD, NJ
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 Re: 9x3 Prop
Gee, do you have any speeds before and after the ron hill prop? did it carry a load better? and why would you go to a 9x4? Im just trying to get some info Im also thinking of getting a new prop and trying to figure out what would be best for where I hunt.
_________________ 1544 G3 with 23hp GDLT
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Wed Oct 21, 2009 11:11 pm |
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EasTexDux88
MMT 1000 Club
Joined: Tue Sep 29, 2009 3:08 pm Posts: 1069 Location: Longview Tx
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 Re: 9x3 Prop
Yeah, i was thinkin bout goin with a lil bit more prop like the 9x5 but i will sometimes be carryin a bit of load and dont want it to bog down. id rather have a consistenst slower speed than a fast speed by myself and barely chuggin along with a load. I guess il just have to get one and try it. Typical load would be at least 2 people and gear, maybe up to 4 people and gear so id rather have the low end to keep moving. I like to get to the ramp before everybody else anyway 
_________________ ETD88 09/28/09-05/14/2010...
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Thu Oct 22, 2009 8:30 am |
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whitelightning
MMT Pro Member
Joined: Thu Mar 26, 2009 1:53 pm Posts: 77 Location: DE, MD, NJ
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 Re: 9x3 Prop
east, if you do get a bigger prop let me know how it does carrying a load. i know during teal season i had me (150) buddy (160), 2 dogs, 40 teal decoys, our gear, on flat deep water i was doing like 8-9mph. felt like turltes were passing me
_________________ 1544 G3 with 23hp GDLT
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Thu Oct 22, 2009 9:48 pm |
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GeeLeDouche
MMT Pro Member
Joined: Thu Jan 15, 2009 1:24 am Posts: 455
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 Re: 9x3 Prop
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Fri Oct 23, 2009 12:45 am |
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whitelightning
MMT Pro Member
Joined: Thu Mar 26, 2009 1:53 pm Posts: 77 Location: DE, MD, NJ
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 Re: 9x3 Prop
I mostly run tidal water, and by tidal I mean 8 foot tides. At high tide, its deep, when when the tide goes out, and I want to get to the ducks, i gotta jump mud banks and go up steep mud hills. from what you said it does sound like the 9x4 would be better for me. might be a christmas present for myself 
_________________ 1544 G3 with 23hp GDLT
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Fri Oct 23, 2009 6:32 pm |
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EasTexDux88
MMT 1000 Club
Joined: Tue Sep 29, 2009 3:08 pm Posts: 1069 Location: Longview Tx
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 Re: 9x3 Prop
well i went to change my seals today and noticed that my prop is really a 9x5!! I guess someone along the line changed it out and I didnt notice til today.. Im guessing its a gd prop but obviously theres no tellin. The boat does well for the load iv carried so far. Wel see how it does with the REAL load this weekend.
_________________ ETD88 09/28/09-05/14/2010...
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Tue Oct 27, 2009 6:04 pm |
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brav01
MMT Member
Joined: Thu Oct 01, 2009 9:57 am Posts: 27 Location: Texas to Alaska
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 9x3 Prop
The surface area of your prop when new was 63.6174 sq. inches; the area of a 9 inch circle drawn on paper (no pitch included). The surface of the prop at 8.18 inches is 52.55 square inches. That's a surface area reduction of around 20%. I feel the pitch is what is carrying your load. The prop that's in place now may give you the same thrust as the original 9x3 due to it's increased pitch.
_________________ 46" 42 lbs, KING Salmon On the roads of life potholes keep things interesting
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Wed Oct 28, 2009 2:31 pm |
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EasTexDux88
MMT 1000 Club
Joined: Tue Sep 29, 2009 3:08 pm Posts: 1069 Location: Longview Tx
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 Re: 9x3 Prop
Thanks brav. thats what i was thinkin.
_________________ ETD88 09/28/09-05/14/2010...
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Wed Oct 28, 2009 3:52 pm |
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