Oar length for a raft - Mountain Buzz
 



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Old 01-07-2013   #1
 
Riverton, Utah
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Oar length for a raft

So, a simple question maybe... how do you know how long of oars you need for a raft?

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Old 01-07-2013   #2
 
Westminster, Colorado
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Roughly space between the oarlocks divided in half is 1/3rd the oar length. (6' wide frame = 9' oars)

Lots of threads if you search about the benefits of wide spacing vs overlap, height of the oarlock above the water, height of your seat, leverage, counterweights, pins & clips, whether to drain the water from your cooler, and all the other pointless crap that we rafters obsess over.
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Old 01-07-2013   #3
 
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portland, Oregon
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Quote:
Originally Posted by asleep.at.the.oars View Post
Roughly space between the oarlocks divided in half is 1/3rd the oar length. (6' wide frame = 9' oars)

Lots of threads if you search about the benefits of wide spacing vs overlap, height of the oarlock above the water, height of your seat, leverage, counterweights, pins & clips, whether to drain the water from your cooler, and all the other pointless crap that we rafters obsess over.
I would argue that your 9' estimate is a bit short. Maybe 9' to the middle of the blade but that is not how they size them. Most buzzards will tell you 10' is about right unless you have large 27" tubes then 11' is about right. My friend runs 9.5 on his 72" frame (24" tubes) but he keeps the handles about a foot and a half apart.

Oars are typically specified in overall length including blade

Dont buy oars before doing the math or borrowing a buddies. Unless the place you bought them from will offer to exchange for different sizes. The one exception is if you intentionally want to use extensions, longer blades (30" vs 24") or to cut them down
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Old 01-07-2013   #4
 
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C. Springs, Colorado
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What boat are you trying to put them on? I have a 16' and a 14' Avon along with a 14' NRS cat. I like to use my 9 1/2' oars on all three. I use the same frame on the two Avons, but I also have a couple of day frames. The 9 1/2' ones seem to fit them all. If I put the 10'ers on.....I need to put the counterbalancers on too..... if I'm rowing for any length of time. I do like the 10'ers on long stretches of flat water and usually rig them as spares on runs like Deso/Gray.
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Old 01-07-2013   #5
 
East MT, WestMT, Both sides of the Yellowstone
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Not to thread jack but my new boat is 8' oarlock to oarlock. 18' w 24" tubes, sitting approx 4" up on a cooler 8" oar hieght, suggestions for setup?
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Old 01-07-2013   #6
 
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vancouver, Washington
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Quote:
Originally Posted by spider View Post
Not to thread jack but my new boat is 8' oarlock to oarlock. 18' w 24" tubes, sitting approx 4" up on a cooler 8" oar hieght, suggestions for setup?
Yeah that setup needs sweep boat oars about 18' long
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Old 01-07-2013   #7
 
East MT, WestMT, Both sides of the Yellowstone
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I get jokes. Mabye I'll just go with a 10 hp mercury.
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Old 01-07-2013   #8
 
Leavenworth, Washington
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You need oars long enough to last the trip...
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Old 01-07-2013   #9
 
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at my house, Montana
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I rowed an 18' on the grand. I liked 11' oars best, and tried 10's also. But I use 10's on a 14' raft.
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