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Old 25 May 2006, 09:00   #31
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Country: USA
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Make: Crapko, AKA Mako
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I like to rev for more than a min.
thinkin most feel the same, not just Yanks
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Old 25 May 2006, 12:26   #32
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Over hear any way, over 21' or 7.1m, max hp is only whats recommended .
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Old 25 May 2006, 13:57   #33
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Quote:
Originally Posted by codprawn
Why do Yanks add an s to RPM? Revs Per Minute - what does the S stand for???
Have lived in the USA for 25 years and have asked that question many times. Have not had a sensible answer yet. Just one of those wierd things I guess. Just like the term "Bril" in the UK. However, I have to say, that the correct use of the English language in general by the majority of Americans is far better than the majority of Brits. Is that not ironic.
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Old 25 May 2006, 14:28   #34
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Quote:
Originally Posted by fast fred
Over hear any way, over 21' or 7.1m, max hp is only recommended .
better said
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Old 25 May 2006, 15:24   #35
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Country: UK - Channel Islands
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2 * 275 verado

MECAL have coded our new 11.5m Tornado for diving with twin 275's. Their only issue was to ensure the transom was at least 300mm above waterline.

With a single installation the leg is not long enough to clear the V without a notch in the transom of the tornado, thus not having 300mm transom and not getting through MECAL!

Tornado have delievered 1 to Norway recently that has reported top speed of 73kts with full fuel + 12 pax + 2 crew.

I can finish work go diving, get my dinner, and still be home in time for Neighbours!!

Karl T
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Old 25 May 2006, 17:28   #36
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Country: Norway
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Make: Humber Offshore 8,5
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Regarding the Tornado in Norway, the boat is still sitting on the trailer and the rigging is not finished until Monday next week, i know because im doing the rigging.

73 knots with 12 pax and 2 crew is not true, i would rather say 60-65 knots, and the reason is that Tornado have mounted the bracket to low so the engines is sitting to deep in the water. and we are testing first with bravo one 26" pitch

The engines cavitation plate is only 8 cm over the bottom of the hull, last monthe i rigged a Revenger 34 with twin 275 verados and here the engines is 15,5 cm over, and the boat has 25" engines and revenger builted it for transom for 30" engines.
The top speed for this boat is 61 knot with revelolutin 4 props with 2 pers onboard and 52 wit 18 pax onboard, now the boat has bravo one 23" props and top out at 58 knots 2 pers onboard and 53 with 18 pers onboard thats impresive for this big and heavy boat
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Old 25 May 2006, 19:09   #37
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Quote:
Originally Posted by codprawn
Why do Yanks add an s to RPM? Revs Per Minute - what does the S stand for???
just plural cod, some add a "s" to rpm, some don't. You could have one rpm or 5 rpm's. The abbreviation of revolutions per minute to rpm is so common that "rpm" is basically used as a correct word.
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