Oar length for 15' Star Inflatables Super Bug - Mountain Buzz
 



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Old 08-20-2018   #1
 
Salt Lake City, Utah
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Oar length for 15' Star Inflatables Super Bug

Having a hard time deciding what size oars to get for my 15' Star Super Bug. I have 9'ers on there now and they just aren't giving me enough purchase in the water. I don't really have the opportunity to try new oars before I buy.

Wondering if anyone has some advice here on 9.5' vs. 10'?

Boat is 15' long, 7'4" wide, 66" frame, 8" oar locks. Rowing from my cooler.

Any advice would be much appreciated.

Thanks,

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Old 08-21-2018   #2
 
Fruita, Colorado
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not sure what oars you are running, but you might be able to get some extensions, and that would be a less expensive way to find out...
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Old 08-21-2018   #3
 
Denver, Colorado
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I have 9.5's on my 7'2" wide boat rowed from dry box with 8" towers and it seems about right.
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Old 08-21-2018   #4
 
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Belgrade, Montana
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I have a 15 foot boat with about the same stats, though your tubes are noticeably bigger. I use both 9.5 and 10'ers... I like the 9.5's better most of the time but I'd suspect that if you feel 9'ers are way too short then I'd go 10'. I can row mine with 9 foot and it's ok, 9.5 is noticeably better but not a night and day difference. 10 foot ends up being too long (too much leverage on the blade side in pushy water). They're great though when making miles on flatwater or rowing fishermen. That's why I keep both....
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Old 08-21-2018   #5
 
Boise, Idaho
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I ran 9' oars when I had a super bug, but I am a wide guy and like my hands further apart. I thing 10' oars would we a bit too long. I would go with 9.5,
YMMV.
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Old 08-21-2018   #6
 
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Kalispell, Montana
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66" frame, seems that 9.5' oars would be about right.


I think you'd have a hard time balancing or leveraging 10' oars with your locks that close together.
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Old 08-22-2018   #7
 
Salt Lake City, Utah
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Thanks for the input everyone. At this point I'm leaning towards the 9.5' and maybe bumping up to 10" towers, 76" apart at the horns.

I spent the better part of the afternoon with the frame setup in the yard messing around with placement of things. Ditched the seat and sitting on my cooler now so I'm up a bit higher. Borrowed a friend's 10' oars and threw them on there, they felt a little long on the lawn, but I can't tell if that was due in part to not being counterbalanced like my 9'.
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Old 08-22-2018   #8
 
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Kalispell, Montana
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I have a stern frame with 66 inches between the locks, a day frame with 74 inches between the locks, and my big 4-bay Frame is 84 inches. 9.5' and 10' wood oars.

I can swing the 10 footers in my day frame, but it is not as comfortable as the 9.5' oars.

Common rules of thumb for oar stop placement are 2/7 the length of your oar, 30%, and the 1/3 2/3 Rule.

2/7 needs a counterbalanced oar with light blades, I like 30% for most situations, and 1/3 works with heavy blades and wide oarlock spacing

For a 10 foot oar, 2/7 is only 34.2" of oar inside the locks, 30% is 36", and 1/3 is 40".

For a 9.5 foot oar, 2/7 is only 32.4" of oar inside the locks, 30% is 34", and 1/3 is 38".

I assume you set those 9.5' oars somewhere around 35" in?
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Old 08-22-2018   #9
 
Join Date: Aug 2006
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Choosing Oar Length from NRS web site.

https://www.nrs.com/boating_tips/oarlength.asp
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Old 08-22-2018   #10
 
Salt Lake City, Utah
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Quote:
Originally Posted by MT4Runner View Post
I have a stern frame with 66 inches between the locks, a day frame with 74 inches between the locks, and my big 4-bay Frame is 84 inches. 9.5' and 10' wood oars.

I can swing the 10 footers in my day frame, but it is not as comfortable as the 9.5' oars.

Common rules of thumb for oar stop placement are 2/7 the length of your oar, 30%, and the 1/3 2/3 Rule.

2/7 needs a counterbalanced oar with light blades, I like 30% for most situations, and 1/3 works with heavy blades and wide oarlock spacing

For a 10 foot oar, 2/7 is only 34.2" of oar inside the locks, 30% is 36", and 1/3 is 40".

For a 9.5 foot oar, 2/7 is only 32.4" of oar inside the locks, 30% is 34", and 1/3 is 38".

I assume you set those 9.5' oars somewhere around 35" in?
Man that's a lot of math! Glad it was you doing it and not me Thanks.

Didn't have a chance to get any 9.5' oars in there but I would have them set about 35-36" inside the locks to give me about a fist width in between them.
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