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Old 18 October 2007, 16:23   #1
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Avon sr4 sling measurements?

Does anyone have the measurements for a 4 point sling for a bucket seat Avon 4 meter searider? A friend of mine has recently purchased this boat and needs a 4 point sling to lift the boat off of a crane to put into the water. The pick points are the original 4 points on the boat. 2 under the console (steering wheel), 2 U bolts on the transom.
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Old 18 October 2007, 17:01   #2
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I don't know your exact dimensions, but Spencer Rigging made mine and might have the dimensions. Its a 4-point one and the RIB is 6.2m.
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Old 18 October 2007, 17:02   #3
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Old 18 October 2007, 17:42   #4
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Thanks for the pictures. I'm sure there is a standard sling measurement for the sr4 since it is such a common boat.
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Old 18 October 2007, 17:46   #5
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Quote:
Originally Posted by boatster_sr4 View Post
Thanks for the pictures. I'm sure there is a standard sling measurement for the sr4 since it is such a common boat.
I am not sure. Doesn't it depend on the centre of balance?
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Old 18 October 2007, 18:42   #6
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I'm not sure but the sling measurements for my searider 5.4 were supposedly from Avon for a 3 point sling. I haven't used it just yet but it seems to be correct.

The bucket seat 4 meter is pretty popular even here in the states so I would have thought there was a standard 4 point sling for it as well.
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Old 19 October 2007, 19:14   #7
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I'm not convinced that you actually need measurements-the C of G should be around where the trailer axle sits under the boat if the trailer is set up correctly-so that's where the join between the 3 should be. As long as the angle between strops at the join is around 45-60 degrees then the lines should be long enough.

I suspect that an Sr4 is so light you could probably make a sling with decent rope and carabiners.
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Old 22 October 2007, 10:51   #8
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Boatster,

Just email Avon in the UK, that's how I got the dimensions for the 5.4.

BTW, recently spliced up new aft slings out of some spare 6mm Vectran line I had. Amazing how much better the boat lifts with those, vs. the stretchy 3 strand nylon I had originally used!
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