Class Rules

Farr 727 Owners’ Association Class Rules For One Design Racing

As Amended and verified, April 2007

Overview:  The intention of the amendments and verification of rules as follows is to provide an updated interpretation of the class rules with-in the scope of ,and with-in the limitations and allowances of Rule 15:

 All boats will be in the spirit of the class


  1. All yachts shall conform in all respects to the drawings of Bruce Farr 727 Yacht Design except where these rules specifically allow departure from the drawings.
  2. All boats shall be from the Farr 727 or Horizon, i.e., hull, deck and rudder moldings. The only exception being Pinto, (original mould plug).
  3. The silhouette must be preserved as drawn for both 727 and Horizon hulls.
  4. The designer’s layup sheets must be observed during building. No exotics (e.g., Kevlar, Nomex etc) are permitted on boats first launched after September 1, 1988.

Any boat that either does not conform with the drawings and/or has had modification to keel, rudder or hull must make a declaration to the Association Committee.



The interior arrangement to be as per designer’s drawings including permanent bunks for at least three people, lockers port and starboard, toilet (not a bucket), sink, minimum fresh water capacity of six litres in closed containers.  A two-burner stove is optional.


All yachts must be weighed and conform with the minimum weight of 2850lbs (1291kgs). Those yachts which are underweight must add extra weight.

Up to 200lbs (91kg) of the extra weight shall be placed:-

  1. Above the waterline.
  2. 50% against the main forward bulkhead and touching the hull on either side (i.e., split in two with half on each side).
  3. The remaining 50% must be fixed aft of the bridge deck and against the hull on either side.

The balance, if any, of the extra weight shall be fastened so that not less than 50% of the balance is forward of the forward bulkhead (i.e., forward of the aft end of the anchor locker as shown in the original design) and the remainder of the balance is aft of the aft bulkhead (i.e., aft of the aft end of the cockpit).

Any boat carrying existing ballast weight shall ensure such ballast conforms to this rule, otherwise such ballast must be removed and placed according to this rule.

  1. All weights must be verified, numbered and have the class stamp or mark upon them so a consequent random check can be made.
  2. All yachts shall be weighed stripped of all removable gear excluding motor. No water or petrol shall be carried. Main boom, mast, spinnaker pole and stove only remain on board.



All boats to carry an auxiliary motor of 5HP minimum.


  1. A maximum of four winches will be allowed.
  2. Mainsheet traveller – maximum length of track (measured between stops) to be 1.2 metres. Track to be located aft of the main companionway on the bridge deck.
  3. Headsail sheeting – optional fore and aft and/or transverse adjustment.


  1. Sails will be restricted in number, area and minimum cloth weight as follows:-
Sails1 x Mainsail
1 x No. 1 Genoa
1 x No. 2 Genoa
1 x No. 3 Genoa
1 x No. 1 Spinnaker
1 x No. 2 Spinnaker
1 x Trisail
1 x Storm Jib
Min. Weight
(US Measurement)

5 oz
2.2 oz
4.5 oz
5 oz
0.85 oz
0.85 oz
6 oz
6 oz
  1. Mylar is permitted in addition to standard Dacron cloths. Kevlar and other exotics are not permitted in sails constructed after September 1, 1988.  Any boat that is carrying previously made sails constructed of Kevlar must make a declaration to the committee.
  2. Maximum dimensions for all sails are to be as shown on the Farr 727 Standard Sail Plan, dated September 1, 1991, measured with sails spread flat. Full length battens are permitted in any sail.
  3. The mainsail must have a minimum of two and a maximum of three rows of reef points, one of which must reduce the total area to less than 50%, as shown in the drawings.
  4. All headsails may only be set hanked to the forestay, or in a luff foil.
  5. All sails must carry the association stamp beside the sailmaker’s mark.
  6. Sail purchases are restricted to one of each type in any given twelve month period subject to the discretion of the committee.

Sail controls, excluding sheets, halyards, leech and foot cords and reef lines are restricted to the following:-

  1. Mainsail
    Boom vang, luff and leech cunningham, foot outhaul and mainsheet traveller adjustment, and topping lift.
  2. Headsail
    No 1 Genoa – one luff cunningham.
    No 2 Genoa – one luff cunningham, one row of reef points will be optional.
    No 3 Genoa – one luff cunningham, one row of reef points will be optional.
    Barber haulers are permitted for all headsail sheeting.
  3. Spinnaker
    Barber haulers are permitted on both sheet and guy.
    No hydraulic controls will be allowed.
    Class sail insignia is available from the Association and will be compulsory. Insignia is to be displayed as per design standard sail plan.


Spars shall be manufactured from aluminium alloy only and shall conform to the following restrictions:-

  1. Size
    Size of section shall be a minimum diameter of 89mm in the fore and aft plane including sail track to within 1981mm of the top of the spar.
    The minimum transverse dimension shall be 63mm to within 1981mm of the top of the spar.
  2. Taper
    The top of the spar to be not less than 32mm fore and aft and traverse including sail track. Tapering to be such that there is no hollow in the fore and aft or transverse profiles between the top (taking minimum size at to and minimum size of section at lower end of taper as given in subsection 1. above).
  3. Weight
    Weight of the mast section to be not less than 2.2kg/m.
  4. Centre of Gravity Height
    Centre of gravity height to be measured with mast fully rigged (excluding mast mounted winches) with both ends of halyards attached to gooseneck fitting. Centre of gravity to be a minimum of ‘Y’ to be established from fully rigged mast.
  5. Spreaders
    These shall be restricted to one pair positioned as shown on the sail plan and of minimum lengths as given by dimensions on the sail plan.
  6. Black Bands
    Black bands 25mm wide shall be painted on mast and boom at maximum limit of sails. Measurement to be taken from inside face of track to start of band.
  7. Spinnaker Poles
    (One only). Measurement of spinnaker poles will be taken with spinnaker pole attached to spinnaker ring on mast and against forestay. The length of pole from forward face of mast to bearing surface for the brace at outer end of pole shall not exceed 2.85m. Pending a decision on centre of gravity height of stock masts, individual boats shall be checked and a class average established.
  8. Jockey Poles shall be optional.
  9. Spinnaker Pole Mast Attachment – maximum height above bottom black band shall be 0.4 metres.



Shall be restricted to the following:-

Shrouds and Stays
Upper Shroud
Lower Shroud
Minimum Diameter

No shrouds or stays are to be adjustable while under sail except the backstay, which may be adjustable by means of pulleys only.

Chainplates to be positioned as per attachment points as shown on design drawings.


With the exclusion of sheets, shall be restricted to a maximum of three halyards for the fore triangle, one main halyard and two topping lifts, one each for the main and spinnaker pole.

Main topping lift may be utilised as spare main halyard.


Electronics for class racing will be restricted to boat speed, log, echo sounder and radio. No other electronic equipment is to be used for class racing.

11. KEEL

The keel is to be made of cast iron, minimum weight shall be 400kg. (To be made from the standard Farr 727 plug), without modification apart from filler for normal fairing. Keels must fit the Farr 727 keel template. Position of keel is shown on the design plan.


Two measurers will be appointed. In the case of any protest, the committee shall for the fee of $10, appoint two measurers to check the discrepancy. The measurers shall report back to the committee for appropriate action, refunding the fee if the protest is upheld.

Committee members and measurers may board boats before and after racing to check weights, safety equipment etc. Failure to comply with official certificate and/or safety requirements will result in automatic disqualification.

The first three boats in the series may be inspected and may have their sails measured.


  1. All yachts to comply with NZYF Safety Regulations Part V Sheltered Waters (Harbour Category), except where sailing instructions specify otherwise.
  2. Each yacht must carry a pulpit, pushpit, stanchions and life lines.


All yachts competing in Association races shall observe IYRU rules, together with NZYF prescriptions, whichever may apply, together with any of the Association rules.


Registration of Farr 727 yachts deviating from the design drawings, but not from the spirit of the class, will be solely at the discretion of the committee. Any such deviations should be checked and approved by the committee.


In all races under class rules, the principal helmsman must be nominated. If the principal helmsman changes from the one last handicapped, the boat’s handicap shall be increased by 2.5% for that race. Nominated helmsman shall include co-owners who may change without penalty.


Each yacht conforming to these rules will be issued with a Certificate of Registration. This certificate will include details of make-up weights to be carried (number, weight and placement) and any other extraordinary details which may have affected its measurement, or which may have been approved by the committee in accordance with clause 15 above. This certificate must be carried on the boat at all times and be available for inspection by the measurers.


Farr 727 Plans

Designer: Bruce Farr, Year Designed: 1973

  • Overall length: 23ft, 10″ (7.27 metres)
  • Waterline length: 19ft, 7″ (5.96 metres)
  • Beam: 8ft 3″ (2.51 metres)
  • Sail Area: 227sq ft (21.16 sq metres)
  • Draught: 4ft 6″ (1.37 metres)
  • Displacement: 2700 pounds (1291kg)
  • Ballast: 900 pounds (408kg)




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