2. HULL
A. The hull shall not exceed 20 feet in length overall
B. The mast step cup shall be 8 feet 3 inches from the rear of axle bolt +2 or
-1 inch.
C. The rear of the cockpit opening to the bow shall be 16 feet 4 inches + or 1
inch.
D. Cockpit width to be 2 feet 9 inches + or - 1 inch. Measurement to be
taken from 1 foot foreword of aft edge of the cockpit excluding padding
thickness.
E. Hull weight to be 200 pounds minimum. Hull weight to be measured less
springboard, all removable upholstery and all ratchet and mainsheet
blocks.
3. SPRING BOARD
A. Overall length shall be 9 feet 6 inches maximum.
B. Construction shall employ no more than 4 laminates.
C. No mechanical spring action is allowed without a class approved deviation.
D. Length from the steering post to the King bolt shall be 5 feet 8 inches maximum.
E. Width 11 inches maximum. Thickness 2 3/4 inches maximum.
4. BOOM
A. Thickness shall be 3/4 inch to 1 1/8 inches.
B. Max vertical depth at the tack end shall be 2 1/2 inches.
C. Max vertical depth at the clew end shall be 8 inches + or - 1 inch.
D. Max vertical depth at center shall be 7 1/4 inches.
E. Length not including jaw 100 inches minimum, 108 inches maximum.
F. Clew plates of stainless steel or aluminum shall be installed at the tack and clew.
G. On mainsheet fairlead of 5 inch max length is permitted.
H. Boe-craft pattern to be followed within 1/2 inch perimeter.
I. A single window is permitted in the boom.
5. RUNNER PLANK
A. Cutting edge between runners on plank 17 feet 6 inches + or - 1 1/2 inches.
B. Length overall 18 feet maximum, 17 feet 10 inches minimum.
C. Width at center of plank shall be 11 to 11 1/2 inches.
D. Width at the ends of the plank shall be 9 1/2 inches + or - 1/4 inches.
E. Construction shall employ no less than 3 and no more than 5 laminates.
F. Four 3/8 inch bolts shall be used to fasten the plank to the hull using four
holes near the center.
G. Side stay attachment points to be at center of the runner chock top plates.
6. MAST
A. Overall length including ball 24 feet 5 inches maximum, 24 feet 2 inches minimum.
B. Thickness 3 inches maximum, 2 3/4 inches minimum.
C. Width fore and aft to be 10 inches maximum, 8 inches minimum.
D. Mast pivot to be centered on the width noted in C.
E. Hound center strap bolt to be 16 feet 5 inches.+ or - 2 1/2 inches from the bottom of the ball.
F. Construction shall employ a maximum of 4 laminates. 3 Laminates are recommended.
7. RUNNERS
A. Main blade length 40 + or - 1/2 inch.
B. Main blade cutting edge length 24 to 30 inches.
C. Steering blade length 32 + or - 1/2 inch.
D. Steering blade cutting edge 20 to 24 inches.
E. Blade steel to be 1095.
F. Blade thickness limited to 1/4 inch.
G. Blades may not be heat treated.
H. Pivot hole location 14 to 15 inches from trailing edge of main blade.
I. Pivot hole location 11 + or - 1/2 inch from trailing edge of steering runner.
8. SHEETING
A. Winches are prohibited.
B. A single block is allowed at the tack of the boom.
C. A single ratchet block is allowed on the mast step plate.
D. A maximum of 5 single blocks are allowed on the rear deck track and
boom clew plate.
E. The maximum pulley diameter is 3 inches.
F. A single cam cleat is permitted in front center of the cockpit.
9. SAIL
A. Sail to measured on floor with fair lay cloth.
B. Materials: The sail and patches shall be made from Dacron. Patch size
and layers are not restricted. The only additional permitted materials are
rope for the luff and foot, with standard sailmaker hardware to finish the
sail.
C. Measurements:
Luff will equal 22 feet 5 inches maximum, 22 feet minimum.
Leach will equal 19 feet 6 inches maximum, 19 feet minimum.
Distance from Luff at 90 degres to foot 6 feet 9 and 1/2 + or -
1/2 inch.
Cloth may not extend more than 1/4 inch above the headboard or
3/8 inch aft of its top aft corner.
D. Eight transverse battens sahll be parallel to the foot and equally spaced
along the luff and leach within 1 inch.
The top of the top batten pocket cannot be closer than 20 inches from
the measurement hole in the headboard, and the bottom batten pocket
cannot be closer than 1 inch from the foot tape.
E. Sails shall be in compliance with ISA measurement requirements for class
B and be measured and stamped accordingly.
IV. Currently Approved Deviations
Runner plank set back from standard 6 inches:
Chuck Kaye In X Cess
Brendan Cashman Blitzen
Steve Schalk RumRunner
Chuck Kaye Gritch (Pegel Built)
Fritz Button B-Sting (Pegel Built)
John Simms Icebreaker (Pegel Built)
Karl Bergesen Moldy (Pegel Built)
Tom Freytag Proud Rebel II (Lundberg Built)
Sprky Lundberg Proud Rebel IV (Lundberg Built)
***Note: The location of the mast step socket to the center of the runner plank on
these boats conforms to the 8 foot 3 inch requirement.
Side and framing stays set in from end of runner plank:
Brendan Cashman Blitzen
Steve Schalk RumRunner
Fritz Button B-Sting (Pegel Built)
Spring front steering &
Spring board overall length 10 feet and 5 inches &
Spring board steering post to king bolt 6 feet 7 inches:
Rick Pappas Akebono