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Old 23 May 2006, 08:56   #11
ADS
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Quote:
Originally Posted by fast fred
hears one with 500+hp tops out just over 90mph
What size are the engines on that?
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Old 23 May 2006, 09:10   #12
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thay are nicasil bore 2.5 Offshores, She got a 1000lbs of gas on in that shot,
check the daylight under the hull.
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Old 23 May 2006, 09:22   #13
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Quote:
Originally Posted by Rene
I really think that you should get the fact straits regarding this.

Boating dynamics do not supply the boat as key finished.
Boating dynamics do not supply the engine.
Boating dynamics is not responsible for the CE marking, because they are not selling the boat in Europe, JBT marine is.


Rene
Rene, I personally couldnt give a fck about the ins and outs of CE marking nor do I profess to have any real knowledge about the subject (hence my questions posed in the other thread). In terms of facts, it appears none of us really has a great grasp of this issue at all - including your good self.

What I do know is that the two ballistics I have owned have been given a max HP rating that appears to be at odds with the formula, that real world use of this formula seems to be non existent and that Searider, a hugely respected member of the surveying community and this forum spoke with me about this over a beer on Saturday and I passed this info to the forum.

As for getting my facts straight, I suggest you check out the supply chain dynamics at Ballistic between SA and the UK and in particular, who owns what and where...you may be surprised.
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Old 23 May 2006, 09:50   #14
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Fred if that does 90 mph on a gps then I should buy it

Sorry mate but that would be quicker by a long way than we have ever had one go!!!!

The one at ribex all be it not propped right did 68.2 mph on gps

We have now propped it and she breaks the 70mph quite easily

But we sell on genuine money back speeds so 20 mph quicker just seams a little bit too quick in my book

For a big heavy boat? Is it g p s speed or that lying Speedo that all boats have

and if you go off the world rounound fomula that every 2 mph over 70mph costs 10k to achive that make yours worth a whole lot of dosh
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Old 23 May 2006, 09:56   #15
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Quote:
Originally Posted by RIVA
Fred if that does 90 mph on a gps then I should buy it

Sorry mate but that would be quicker by a long way than we have ever had one go!!!!

The one at ribex all be it not propped right did 68.2 mph on gps

We have now propped it and she breaks the 70mph quite easily

But we sell on genuine money back speeds so 20 mph quicker just seams a little bit too quick in my book

For a big heavy boat? Is it g p s speed or that lying Speedo that all boats have
I was thinking along the a similar lines although the engines are highly modded by the sound of it, didn't realise a rib hull could go that fast!
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Old 23 May 2006, 10:00   #16
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If he's got his 2.5's reving to 8k ish it would certainly be a fair amount faster than with a pair of etec's

Harry
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Old 23 May 2006, 10:03   #17
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why ?

at some point you have reached the hulls maximum design speed

and that was past some time ago at 90mph
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Old 23 May 2006, 10:31   #18
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Quote:
Originally Posted by RIVA
why ?

at some point you have reached the hulls maximum design speed

and that was past some time ago at 90mph
Does that matter?

On flat water, if you keep adding power then - to a degree - surely it keeps going faster. At that sort of speed almost nothing of the hull is in the water - it'll be on the last couple of inches of flat bit anyway...

As long as the hull can take the forces being applied to the transom to move the thing through the water...

Yes? No? Maybe?

D...
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Old 23 May 2006, 10:37   #19
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I would be interested to see if that really is top speed. it seems a bit optimistic. A blade runner 35 with twin 300 promax tops out at 90 and that is one seriously fast hull...
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Old 23 May 2006, 10:44   #20
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well i have a sr9 out side with 2 x 200 xs thats clocked 102 mph

and it weighs about the same as a fag paper and i think the term is areo dynamic


a ballistic console is hardley areo dynamic lets be honest

have you ever seen a hummer on the start at silverstone
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