APBA Region 11 Stock Outboard classes:

 

Stock Outboard boats in three classifications are raced.

Runabout: This is a flat bottom boat that the driver kneels in, steering wheel in the right hand, throttle in the left hand. The driver's weight and body movements are very important on how the boat performs. Turning can be either flat with the aid of a side fin or the boat can "roll" up on it's left chine in the turns, similar to how a motorcycle turns. There are minimum lengths and widths for the boats in each class.

Hydroplane: Most boats are of a "3 point" design, with two forward sponson's. There are no minimum dimensions. The hydroplanes ride on a cushion of air between the sponson's and air traps. A hydroplane takes more finesse to drive. Hydroplanes are generally about 10% faster in speed than runabouts.

Tunnel Hull: This design is used in the 45SS class. It has sponson's that run the full length of the boat. The driver sits restrained in a reinforced cockpit or capsule. The driver has use of power trim on the motor to attain the best performance.

Classic Division: This is the place that motors that have been out of production for over 25 years can be ran. In 2000 Region 11 will have races for the Classic B class at selected sites.

Stock Outboard Motors are production engines with "racing" lower units.

Motors from Mercury, O. M. C. (Evinrude and Johnson), Yamato, and Hot Rod are utilized in this division.

The only modifications allowed are for safety reasons. "Blue printing" is allowed in some classes so motor performance can be equalized due to production tolerances.

Seven Stock Outboard classes raced regularly in A. P. B. A. region 11.

 


A Stock Runabout and A Stock Hydroplane

These classes use the Evinrude or Johnson 15A engine. 14 cu. in., 15 h.p. This engine is presently out of production, used prices range from $900 to $1,400. Also the Mercury 15 hp. with racing gear case is approved for this class.

Boats in A Stock Runabout are about 10 feet long and have a top speed of about 50 m.p.h.

The minimum overall weight for boat, motor and driver is 350 pounds.

Minimum driver age 14.

This class is suited for drivers up to 160 lbs.

ASR Driver Kellee O'kane

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Boats in A Stock Hydroplane are 8 to 9 feet long and have a top speed of about 55 m.p.h.

The minimum overall weight for boat, motor and driver is 345 pounds

Minimum driver age 14.

This class is suited for drivers up to 160 lbs.

Stacy Sutfin Holds the Lead in ASH

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C Stock Runabout and C Stock Hydroplane

These Classes use the Yamato 102 and 302 engines. 24 cu. in. / 400 c.c., 33 h. p. The Yamato 302 in currently in production. It is manufactured for pari-mutuel boat racing in Japan. They are imported to the Untied States after a year of use in Japan. The price from dealers is $1,469. The Yamato 102 used prices range from $700 to $1,200.

Boats in the C Stock Runabout class are about 12 feet long and have a top speed of over 60 m.p.h.

Minimum overall weigh for boat motor and driver is 475 pounds.

Minimum driver age 16.

This class is suited drivers 175 lbs. to 250 lbs.

Darrell Sorenson & Allen Sutfin Battle in CSR

 

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Boats in C Stock Hydroplane class are 10 to 11 feet long and have a top speed of about 65 m.p.h.

Minimum overall weight for boat motor an driver is 440 pounds.

Minimum driver age 16.

This class is suited for drivers 165 lbs. to 215 lbs.

                           C-67 Buzz Rasmussen 2005 CSH High Point Champion

     

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D Stock Hydroplane

This class uses the Mercury 44XS engine. 44 cu. in., 50 h.p. This engine is presently out of production, used prices range from $2,000 to $3,000.

Boats in this class are about 12 feet long and have a top speed of about 80 m.p.h.

Minimum overall weigh for boat motor and driver is 470 pounds.

Minimum driver age 18.

This class is suited for drivers 165 lbs. to 220 lbs.

 

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20 Super Stock Hydroplane

This class uses the Yamato 80 engine. 20 cu. in./ 327 c.c., 30 h. p. This engine is presently out of production, used prices range from $400 to $1,000 An alternate engine is the C class Yamato 102 or 302 with a carburetor restrictor plate to reduce it's power.

Boats is this class are 10 to 11 feet long and have a top speed of over 60 m.p.h.

Minimum overall weight for boat, motor and driver is 400 pounds

Minimum driver age 15.

This class is suited for drivers 150 lbs. 185 lbs..

Todd Anderson in 20SS Hydro

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45 Super Stock Tunnel Boat

This class uses the Evinrude or Johnson 45SS engine. 45 cu. in., 50 h.p. This engine is presently out of production, used prices range from $2,000 to $3,500.

Boats are 13' to 15' long and have a top speed close to 80 m.p.h.

Minimum driver age 16.

2005 High Point Champion RJ West

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Boats in the Runabout and Hydroplane classes are available from custom builders. Prices range from $1,400 to $2,500. You can build your own boat from plans or kits for 1/3 to 1/2 the cost of a custom built boat. Used boats are available, where price depends on condition of the boat.

45SS Tunnel boats are available from two custom builders in California. Prices are in the $6000 range. Due to the technology of the capsules, building your own is not an option. Of course use boats are also available.

 

Classic B

This class uses B stock racing engines produced from 1950-1957. The boat designs are the 11' B utility runabouts from that era. If you are interested in the class, the following links will give you more information.

Classic B Information

Classic B Rules

Classic B Roster