Boe-Craft Skeeter

Ice Yacht Association

Specifications

       

Boe-Craft Skeeter One Design Specification 

12/8/2013 11:30 AM Rev 9

I.  General Rules

1. Requirements.  For a yacht to be qualified to race as a Boe-Craft Skeeter, it must conform to the following specifications.

2. Interpretations. The basic principle of the specifications is to maintain the class within reasonable limitations as standard, equalized, one design yachts. It is not the intention of these rules to permit everything not specifically prohibited. Requests for interpretations or deviations shall be made in writing and brought before the Technical Committee for review and decision by majority vote.

II. Overall Dimension

1. The distance from the pivot bolt of the front runner to the pivot bolt of the rear runners when measured down the center of the boat will not exceed 22 feet 9 inches.

III. Component Detail Dimensions and Materials

NOTE: Wood and plywood refer to commercially available forest products. Carbon fiber is not allowed in any construction.

1. 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

                                axle bolt line + 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 1 foot foreword of the aft

                                Edge of the cockpit excluding padding thickness.

                           E.  Hull weight with springboard to be 200 pounds

                                Minimum. weight to be measured less all

                                Removable upholstery and all ratchet and mainsheet

                                Blocks.

                           F. Hull to be made of plywood and solid wood components.         

Fiberglass may be used on the outer surface for repair or                           reinforcement with written approval from the technical committee.

2. Springboard   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 max. Thickness 2 ¾ inches max.

                           F. Springboard to be made of wood.

Fiberglass may be used on the outer surface for repair or                           reinforcement with written approval from the technical committee.

3. 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. Vertical depth at the clew end shall be

                                8 inches + or – 1 inch.

                           D. Max vertical depth at center 7 ¼ inches.

                           E. Length not including jaw 99 inches minimum,

                               108 inches maximum.

                           F. Clew plates of stainless steel or aluminum shall be

                               installed at the tack and clew.

                           G. One mainsheet fairlead of 5 inch max length is

                                Permitted.  

                           H. Boecraft pattern to be followed within ½ inch perimeter.

                           I. A single window is permitted in the boom.

                           J. Boom to be made of wood. Plywood sides may be used.        

Fiberglass may be used on the outer surface for repair or                           reinforcement with written approval from the technical committee.

4. Runner           A. Cutting edge between runners on plank 17 feet 6 inches 

    Plank                  + or – 1 ½ inches.

                           B.  Length overall 18 feet max, 17 feet 10 inches min.

                           C. Width at center of plank shall be 11 to 11 ½ inches

                           D. Width at the ends of the plank shall be 9 ½ inches + or – 

                                ¼ inch.

                               Thickness to be 3 inches maximum, 1.8 inches minimum

                               10 inches from the outboard ends of the plank.

                           E. Construction shall employ no less than 3 and no more

than 5 laminates of wood. Added wood may be used for repair. Fiberglass may be used on the outer surface for repair or reinforcement with written approval from the technical committee.

                           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.

5. Mast              A. Overall length including ball 24 feet 5 inches maximum.

                          B. Thickness 3 inches maximum, 2 ¾ inches minimum.

                          C. Width fore and aft to be 10 inches max, 8 inches min.

                          D. Mast pivot to be centered on the width in noted in C.

                          E. Hound center strap bolt to be 16 feet 6 & ¼  inches

                              maximum from the bottom of the ball.

                          F. Construction shall employ a maximum of 4 laminates.

3 laminates are recommended. Added wod my be used for repair. Fiberglass may be used on the outer surface for repair or reinforcement with written approval from the technical committee.

6. Runners         A.  Main blade length 40 + or – ½  inch.

                           B.  Main Blade cutting edge from heel to the point at which

                               a 0.050” feeler gauge stops at the lead in to be 32.625 

                               maximum.  

                          C. Steering blade length 32 + or – ½ inch.

                          D. Steering blade cutting edge from heel to the point at

                               Which a 0.050” feeler gauge stops at the lead in to be

                                26.75 maximum.

                           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 – ½ inch from trailing edge

                              of steering runner.

7. 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.

8. Sail                         A. Sail to be measured on floor with fair lay to 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 max, 22 feet min.

                               Leach will equal 19 feet 6 inches max, 19 feet min.

                               Distance from Luff at 90 degrees to foot 6 feet 9 & ½

                               + or – ½ inch.

                               Cloth may not extend more than ¼ inch above the

                             Headboard or 3/8 inch aft of its top aft corner.

                    

                       D. Eight transverse battens shall 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 of the bottom batten pocket cannot be

                             Closer than 1 inch from the foot tape.

                             Batten materials and tensioning devices are unrestricted.

                      

                        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 - 2xs (Boehmke)

 Michael Ortiz – Gritch (Pegel)

 Brendan Cashman – Polar Bear II (Boehmke)

 Steve Schalk – Jack in the Green (Boehmke)

 Fritz Button – B-sting (Pegel)

 John Simms – Icebreaker (Pegel)

 Karl Bergesen – (Pegel)

 Tom Freytag – Mad Cap (Lundberg)

 Sparky Lundberg – Proud Rebel VI (Lundberg)

 Cody Heindl – Ramblin Rebel Too (Lundberg)

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 – Polar Bear II

 Fritz Button – B-Sting

43 inch long main runners:

Karl Bergesen

John Simms – Icebreaker

Spring front steering:

Spring board overall length 10 feet:

Spring board steering post to king bolt 6 feet 7 inches:

 Rick Pappas – Akebono