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P class question

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Old 01-03-2003, 05:51 AM
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Default P class question

What are the different P classes?
Size, Power, Speed?

Thanks!...Mark
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Old 01-03-2003, 06:00 AM
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P-5 70 mph
P-4 80
P-3 90
P-2 100
P-1 110
There is no rules as to size power just speed.
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Old 01-03-2003, 08:55 AM
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I don't think there are any restrictions as to size, power or drive choice. The classes are broken down by speed.
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Old 01-03-2003, 08:56 AM
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There is also a Px class for the all out boats.
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Old 01-03-2003, 11:53 AM
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Does anyone know the equation they use to equate the speed of your boat??
 
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Old 01-03-2003, 01:17 PM
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does the P class have to be V only or can it be a Cat???

Maybe i should race


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Old 01-03-2003, 01:23 PM
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can be Cat or Vee...Speed is the only factor....
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Old 01-03-2003, 01:32 PM
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Allen, try this, it's very accurate. Basically, prop pitch x gear reduction x RPM x slip factor x hull drag.

http://www.go-fast.com/boat_speed_predictions.htm
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Old 01-03-2003, 01:46 PM
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do they radar you for top speed???
how do you depict what class??
say my boat does 80 can top oout higher on a perfect day but 80 is the normal
or do they use what someone said about a theory calculation?
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Old 01-03-2003, 01:55 PM
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Rules are listed on APBA website, page 169.
http://www.apbaoffshore.com/rules.cfm
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