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Old 25 February 2019, 12:24   #1
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Good buy or Not

Tornado rib seems a good only 9 years old 5.8 with good engine
but have been told tornado ribs are PVC tubes and not Hyperion does this decreases there value
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Old 25 February 2019, 13:56   #2
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Hyperion
Titan off Uranus.
One for my list
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Old 25 February 2019, 14:13   #3
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yes if all else is the same. hypalon is heavier and harder wearing but also more expensive and having used both it would depend on what i am using the boat for and how often. there is a lot of negative a pvc but wear patches for key places and they are more than fine. as pvc is lighter it means less hp required and in some cases can mean unbraked and not a braked trailer. Condition of both though is the key as both cost a lot to replace!!!
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Old 25 February 2019, 14:29   #4
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as pvc is lighter it means less hp required and in some cases can mean unbraked and not a braked trailer.
That's something I'd not considered previously! In your experience, what would the typical weight savings be on a 6m RIB?
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Old 25 February 2019, 14:46   #5
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Thought tornado were PU not PVC
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Old 25 February 2019, 14:47   #6
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Hi

sorry others will know on here but the 5.8 with a 100 suzki (new engine) came in with no fuel a some basic electrics and bits at 520kg so depending on your engine the tornado 6m it says is the same weight see https://tornado-boats.com/ribs/ so when we sold a trailer he was ok to be unbraked ie we can go to 590kg unbraked so he just loaded his boot with extra fuel and the anchor. unbraked = a lot cheaper and easier to look after so it can make a difference.
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Old 25 February 2019, 14:59   #7
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Thought tornado were PU not PVC
your probably correct ,I was told they where not hypalon
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Old 25 February 2019, 15:05   #8
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Hi

sorry others will know on here but the 5.8 with a 100 suzki (new engine) came in with no fuel a some basic electrics and bits at 520kg so depending on your engine the tornado 6m it says is the same weight see https://tornado-boats.com/ribs/ so when we sold a trailer he was ok to be unbraked ie we can go to 590kg unbraked so he just loaded his boot with extra fuel and the anchor. unbraked = a lot cheaper and easier to look after so it can make a difference.
Er thanks. Reading between the many lines, could I be forgiven for assuming that you have no idea? It's just that you seemed very sure when you were advising the OP of your professional opinion...
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Old 25 February 2019, 17:19   #9
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Good buy or Not

Quote:
Originally Posted by willk View Post
That's something I'd not considered previously! In your experience, what would the typical weight savings be on a 6m RIB?


That sounds like a job involving pi so I am duly summonsed!

As far as I can see Hypalon comes in quite a wide range of densities, from as low as 880g/m2 to 2210g/m2 whilst PVC seems to be typically 980g/m2 (other ranges may be possible). So theoretically some Hypalon boats could lighter! But I believe 1500g/m2 is the most you would find on “normal” boats.

Assuming the tubes are a total of 12m long (total), and 0.5m diam you are looking at less than 10kg difference between 1500g/m2 and 980g/m2 ...

(The only data I could find for PU was the same density as Hypalon and more puncture and abrasion resistant).
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Old 26 February 2019, 00:43   #10
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That sounds like a job involving pi so I am duly summonsed!

As far as I can see Hypalon comes in quite a wide range of densities, from as low as 880g/m2 to 2210g/m2 whilst PVC seems to be typically 980g/m2 (other ranges may be possible). So theoretically some Hypalon boats could lighter! But I believe 1500g/m2 is the most you would find on “normal” boats.

Assuming the tubes are a total of 12m long (total), and 0.5m diam you are looking at less than 10kg difference between 1500g/m2 and 980g/m2 ...

(The only data I could find for PU was the same density as Hypalon and more puncture and abrasion resistant).


Ribcraft standard commercial spec Hypalon is 1300 gsm. The heavy duty is 1500gsm.
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