C400/445 IA Catalina 400/445 International Association

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Constitution Bylaws One Design Race Rules Association Officers

Catalina 400/445 One-Design Race Rules

Eligible Sailboats

A Catalina 400 or a Catalina 445 is eligible and considered in the Catalina 400 or Catalina 445 class only if it:

  1. conforms to measurement rules as certified by the Class Measurement and Registration Certificate
  2. has been properly registered or documented
  3. is owned by a qualified member recorded at the time in good standing with the Association

Measurement And Registration Certificates

The Association's Official Certificate of Measurement and Registration, as issued by the Chief Measurer or his/her delegate, shall be binding upon all organizations conducting races for the Catalina 400 class or the Catalina 445 class. To be eligible to participate in an International Championship Class Regatta, a Catalina 400 or a Catalina 445 must have a valid official Certificate of Measurement and Registration. A Catalina 400 or Catalina 445 is always subject to re-measurement by order of the Commodore of the Association, Fleet Officers, Governing Board members, International Race Committee members, and/or the Measurement Committee at International Championship Regattas.

Fleet Measurers shall have the responsibility of measuring Catalina 400s and Catalina 445s within their Fleets. Appeals from a ruling by a Fleet Measurer may be made to the Chief Measurer whose decision may only be overruled by a majority vote of the Governing Board. Rulings on controversial changes or changes that affect sailing characteristics must be referred to the Chief Measurer for evaluation and presentation to the Governing Board, if required. Fleet Measurers shall not measure their own sailboats, except under the supervision of a disinterested Fleet or Association Officer. Fleet Measurers do not need to be owners of a Catalina 400 or a Catalina 445.

No sailboats shall be eligible to enter any race for the Catalina 400 class or the Catalina 445 class unless a Certificate of Measurement and Registration has been granted to that specific sailboat.

Specifications And Regulations


The Catalina 400 and the Catalina 445 shall be kept, basically, as designed by Frank Butler and Gerald Douglas and built by Catalina Yachts, Inc. Any changes made by the manufacturer or owner of the Catalina 400 or the Catalina 445 in the hull configuration, sail plan, ballast (as for amount or location), and rigging, without prior approval of the Association, would render that sailboat ineligible to compete as a Catalina 400 or a Catalina 445 in a Catalina 400 class or Catalina 445 class regatta. Proposed changes by the builder in the hull configuration, sail plan, ballast or rigging shall be referred to the Governing Board, who shall render a decision regarding the specific issue under investigation and the eligibility of that specific sailboat's participation in Association races and/or regattas.

All measurements, equipment, and characteristics of the Catalina 400 or the Catalina 445 shall comply with the details listed and described herein.

The Catalina 400 or the Catalina 445, when racing in class, shall be raced in cruising trim and the owners should recognize the spirit of this requirement. Cruising trim shall mean that the sailboat is equipped with a galley, dinette, water and holding tanks, head, lifelines, running lights in working order, two 12-volt rechargeable marine batteries, inboard engine, fuel tank, regular bunk pads, and all equipment normally furnished with the sailboat such as drawers, covers, and hatches.

All removable parts of hull, cabin, or deck, shall be on board during a race.

A Catalina 400 or a Catalina 445 shall carry ground tackle and lifesaving equipment conforming to USSA (USYRU) Rules #23 and #24 and U.S. Coast Guard requirements. Each sailboat shall carry ground tackle and anchor sufficient to hold the sailboat stationary in a maximum of a 30-knot head wind.

The sailboat shall begin the race series with at least 20 gallons of fuel in the main fuel tank. There are no requirements for the amount of water that is to be carried in the water tanks.

Interior appointments, if other than the standard Catalina 400 or the Catalina 445 plans, must be approved by the Chief Measurer.

Hull and Trim

Construction of all hulls, hull liners, decks, and deck liners shall be molded fiberglass in or over an approved mold manufactured by Catalina Yachts Inc., or its successors or assigns.

No hull modifications or alterations will be allowed with the exception of fairing on both keel and rudder.

If repairs are made that affect more than one-half (1/2) of the hull or are so extensive to so warrant a new measurement in the opinion of the Chief Measurer and/or the Governing Board, a new Measurement and Registration Certificate shall be required.

No inside ballast shall be allowed except for water and fuel and as noted above.

Folding and feathering propellers shall be allowed. An appropriate handicap may be allowed for any Catalina 400 or Catalina 445 that races with a fixed-blade propeller.

Spars and Rigging

The mast and boom shall be made of aluminum to the drawings and dimensions shown on the official plan as designed by Frank Butler and Gerald Douglas.

Rigging shall be as shown on the plans. The Chief Measurer reserves the right to declare ineligible any Catalina 400 or Catalina 445 that does not conform to the spirit, as well as, the letter of these rules and specifications. Head sail roller furling is required.

The whisker pole, when set, shall be connected to the mast. The length of the whisker pole shall not exceed the 'J' dimension of the Catalina 400 or the Catalina 445. This is the overall length, including fittings.

Backstay adjusters shall not be used in Catalina 400 class or Catalina 445 class races. If the owner has modified the boat to include a backstay adjuster, it shall be set to one position for the duration of the regatta and marked to show that the position has not been changed.


The intent of these rules is to minimize the cost for sails and to discourage rule-beating sails. Therefore, any changes which are not established practice or specifically covered by the sail plan and measurements are considered illegal unless a ruling has been specifically obtained from the Chief Measurer and Board of Directors.

When required, all sails shall be stamped on the tack of the sail with waterproof ink by a Fleet Measurer with the official stamp issued by the Association. The Fleet Measurer shall sign and date the sail within the stamped area. The Chief Measurer shall issue these stamps to all Fleet Measurers. Sails that are not stamped with the official Catalina 400 or Catalina 445 stamp and signed and dated by a Fleet Measurer, shall not be considered legal and shall disqualify any Catalina 400 or Catalina 445 sailboat if these sails are used while racing.

The sail locker for Catalina 400 class races and Catalina 445 races shall be restricted to the sail plan as follows:jibs smaller than 135%, 135%, and 155% jibs and a single, standard mainsail. All sizes shown are maximum.

Any sail used in a Catalina 400 class race shall be a cruising (as opposed to racing) sail. Only sails that are constructed primarily of polyester will be allowed, including composites and laminates based on polyester and mylar. Materials such as Spectra, Kevlar, and other high-tech fabrics are not permitted. Roller furling head sails with UV leech and foot covers are required.

While being measured, sails shall be pulled tight to remove wrinkles, but not so tight as to put tension in the sailcloth.

Battens shall not be used in any head sail.

The clew of the mainsail shall not be pulled out beyond its natural extended position on the boom.

Cunninghams and any number of reef points may be used on the mainsail.

Spinnakers of any type will not be allowed in any Catalina 400 or Catalina 445 cruising class races.