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| 7x4 verses 7x5 Prop http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=41&t=21054 |
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| Author: | Otter1 [ Tue Aug 16, 2011 6:25 am ] |
| Post subject: | 7x4 verses 7x5 Prop |
I'm in the process of building a longtail motor from ebay plans. One of their recomendations is to either use a 7x4 or a 7x5 prop for the 6.5hp engine. Just wondering which would be a better match for my boat (14' jon) ? I wont be running any large warter , just small shallow streams, plus I'm not looking for any amt. of speed, just somthing up to 10mph. max. Thanks |
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| Author: | Woodiebuster [ Tue Aug 16, 2011 10:08 am ] |
| Post subject: | Re: 7x4 verses 7x5 Prop |
Get the 7x4, you can probly forget 10 mph with that set-up also. You need to look into atleast a 13 hp engine. |
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| Author: | fireman1293 [ Tue Aug 16, 2011 6:30 pm ] |
| Post subject: | Re: 7x4 verses 7x5 Prop |
Otter, check out our website www.swamprattmudmotors.com We built a 6.5 hp with a 6.5x4 prop and got 10 mph on a 14 ft. jon boat carrying 1 adult(200lbs),1 child(90lbs), lab(75 lbs) and 5 dozen decoys. With the jon boat its all about the floatation, with the same motor on our Otter Stealth boat we got 8 mph because it isn't as bouyant. Good luck Scott |
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| Author: | keys1222 [ Wed Aug 17, 2011 12:47 pm ] |
| Post subject: | Re: 7x4 verses 7x5 Prop |
my 1436 with a 6.5 gdlt will push it 11-12mph with a worn prop thats been on it 6yrs |
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| Author: | specgoos1222 [ Fri Aug 19, 2011 4:44 pm ] |
| Post subject: | Re: 7x4 verses 7x5 Prop |
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