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LH vs RH drive? Why single engine has LH drive?

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LH vs RH drive? Why single engine has LH drive?

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Old 10-05-2009, 02:42 PM
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Default LH vs RH drive? Why single engine has LH drive?

I'm definitely not what you folks would call boat-savvy...but isn't a RH drive the "normal" drive for a single engine boat?

Why would a single-engine boat have a LH drive?
Or am I backwards in my thinking?

Last edited by KSims1868; 10-05-2009 at 02:56 PM.
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Old 10-05-2009, 02:51 PM
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The only boats I know of with a single that use left hand rotation is Fountain and Profile.
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Old 10-05-2009, 03:04 PM
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The boat I'm going to look at tomorrow (Tues) is setup for a single-engine bbc and has a left-hand TRS drive.

It's an older hull (1980), but I don't know what year the TRS is.
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Old 10-05-2009, 03:15 PM
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Formula uses LH on their 271. Testing showed slightly better handling and minor top end gain. I have no idea why. No big deal either way.
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Old 10-05-2009, 03:21 PM
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Bow lift. so they say.
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Old 10-05-2009, 03:25 PM
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I have seen a few 27-29 Fountains with a LH prop on single, one Baja 275, and just this week a Cobalt 220. All with single BBC and Bravo 1 LH.
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Old 10-05-2009, 03:27 PM
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Running it left hand helps counter the torque of the motor which sometimes makes the boat lean to one side when running.
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Old 10-05-2009, 03:42 PM
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almost every 27-29 fountain w/single engine i have seen has a lhprop.reggie says they are faster .dont know why though.
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Old 10-05-2009, 05:22 PM
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The left hand TRS is stronger than the right hand due to the placement of the lower drive gear.
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Old 10-05-2009, 05:46 PM
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I've tried lh and rh on my velocity and didn't notice a difference except that I had to turn the wheel the other way to keep it on the pad. My guess is that maybe the owner blew a drive and just bought a LH drive, otherwise I'd have to go with Biggus. I don't think anyone ran a LH single in the 80's????
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