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Old 08 February 2021, 11:39   #1
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Handed Propellers

I come from the world of shaft drives.

Regarding Outboards, are the props "handed" - ie Sbrd prop clockwise and Port prop anticlockwise

If handed, do you need to buy a left spinning port outboard or have it modified?

If not handed, the tendancy will be to turn to starboard???

JD
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Old 08 February 2021, 12:52   #2
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Quote:
Originally Posted by Jack Dalmatian View Post
I come from the world of shaft drives.

Regarding Outboards, are the props "handed" - ie Sbrd prop clockwise and Port prop anticlockwise

If handed, do you need to buy a left spinning port outboard or have it modified?

If not handed, the tendancy will be to turn to starboard???

JD
Many larger installations nowadays use counter rotation engines which come with a different gearbox to allow using a lh prop
Many smaller installations run standard rotation without issue.
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Old 08 February 2021, 13:29   #3
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Handed Propellers

Quote:
Originally Posted by beamishken View Post
Many larger installations nowadays use counter rotation engines which come with a different gearbox to allow using a lh prop
Many smaller installations run standard rotation without issue.


I thought the 350hp suzis were contra rotating duo prop, maybe the op needs to RTFM
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Old 08 February 2021, 14:00   #4
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Originally Posted by Pikey Dave View Post
I thought the 350hp suzis were contra rotating duo prop, maybe the op needs to RTFM
Hadn't noticed that hence my dummys guide reply
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Old 09 February 2021, 01:18   #5
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Quote:
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I thought the 350hp suzis were contra rotating duo prop, maybe the op needs to RTFM
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Old 09 February 2021, 03:21   #6
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LH Props

Thanks Guys

Forget the Suzies with Duoprops

Ordinary props on a standard twin configuation - are they handed?

JD
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Old 09 February 2021, 04:17   #7
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Over around 150hp you'll get handed ones, LH rotation on port RH on starboard usually on outboards
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Old 10 February 2021, 12:24   #8
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Quote:
Originally Posted by Jack Dalmatian View Post
Thanks Guys



Forget the Suzies with Duoprops



Ordinary props on a standard twin configuation - are they handed?



JD


Frequently but not always. Counters the prop walk youd get with more powerful motors. Same outboards different gearboxes.
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Old 10 February 2021, 13:51   #9
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Quote:
Originally Posted by Jack Dalmatian View Post
I come from the world of shaft drives.

Regarding Outboards, are the props "handed" - ie Sbrd prop clockwise and Port prop anticlockwise

If handed, do you need to buy a left spinning port outboard or have it modified?

If not handed, the tendancy will be to turn to starboard???

JD
Yes, for larger outboards on a twin installation the props are handed. Most of the time you will need a left hand gearbox on the left side as generally the bearings are different inside the gearcase.
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