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Old 08-08-2002, 02:15 PM
  #11
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Their speed calc using gear ratio, prop pitch, slip and rpm works pretty good, but it has a glitch if you "play" with the numbers. I always do mine the old fashioned way so i know it's right on. I think almost all of their calcs work pretty well except for the one I mentioned. Which may work in a lot of cases. But, like I said there are a lot of variables. I do agree that 60 mph in a 43000 lb boat with 2000 hp is cruising!
 
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Old 08-08-2002, 02:18 PM
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Actually, I take that back. That calculator may be accurate. The problem with my boat is it has a surface drive so my prop slip is much higher. if I just use their constant for a fast V-bottom of 250 it says 76 is max speed. I used 200 because my boat has over 15% prop slip. Most don't.
 
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Old 08-08-2002, 02:28 PM
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I have seen the Italian Cigarettes before, nice styling. But at 21+ tons And a 24 Degree Bottom?? Hell 18-20 degrees would of been better ! But Aronow said you do not screw with success 24 Degrees .Same BTW with the 53 Magnum .
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Old 08-08-2002, 02:43 PM
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Old 08-08-2002, 07:26 PM
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60 isn't all that fast in a boat that big timucin. There is a 55 Hylite running around the Muskegon and Grand Haven areas of Lake Michigan that weighs in at 41,000 lbs and runs OVER 70 mph with 1300 hp MTU's. I know this because I've been on the boat at the dock and he passed us like we were standing still while we were doing a GPS 64 mph. I believe that at Lake X it dialed in at 74 mph. I have no trouble believing 60 mph from Roger's boat.
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Old 08-08-2002, 07:34 PM
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be careful pls: I did not say I dont believe...
I said I can not imagine.




the reason why I am trusting that bam formula is what ever I have calculated is very close to real-speeds .+/-
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Old 08-08-2002, 07:43 PM
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Quote:
Originally posted by timucin
blackhawk:



but I still cannot imagine 43000lbs boat going 60 with 1000hp's
Sure sounds like you don't believe it.
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Old 08-08-2002, 08:00 PM
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I always wanted to be a politician...
LOL
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Old 08-08-2002, 08:03 PM
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You got my vote!!! LOL!!!

You need to learn this phrase:

"I'm sorry, I don't recall."
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Old 08-08-2002, 08:30 PM
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I can neither confirm nor deny weather I recall or dont recall...........What was the question???
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