SBI
6.2.12 Tunnel Width no more than 63”. Any boat having less than 63” in the tunnel may reduce its overall weight by 25lbs. per inch of tunnel, from their base weight.
Example: Base Boat – Doug Wright 32’ with the 63” tunnel weight is 4,300 lbs
32’ with the 61” tunnel would be 4,275 lbs
32’ with the 60” tunnel would be 4,250 lbs BOTTOM LINE-Doug Wright 32’(older models)57” tunnel would be 4,150 lbs
a total reduction of 150 lbs.
6.2.13 Minimum overall length of 28’ with a maximum of 32’.
6.3 Minimum weight: 28’ … 3,800lb
29’ … 3,925lb
30’ … 4,050lb
31’ … 4,175lb
32’ …4,300lb
APBA
All Super Stock (SS) Class boats must adhere strictly to the following specifications. Please also refer to the rules pertaining to all APBA Offshore classes.
1 - Dimensions:
Hull type:Catamaran
Length minimum:28' 0"
Length maximum:32' 0"
Beam maximum:10' 6”
Tunnel width maximum (measured at keel):65"
Weight minimum 28 feet:3,800lb
Weight minimum 29 feet:3,925lb
Weight minimum 30 feet:4,050lb
Weight minimum 31 feet:4,175lb
Weight minimum 32 feet:4,300lb