Notes for Skippers taking part in the Round the Island Race organised by the Island Sailing Club
For a number of years the class association had been approached by members suggesting we work with the Island Sailing Club to find a way that in the Round the Island Race can get a class result AND an overall result under the ISC handicap system (ISCRS). For the 2017 race we have agreed with ISC to trial the removal of the “tick-box” Contessa 32 one-design entry option and instead the skippers should enter in the ISC class. Once results have been calculated for the overall ISC position the organisers will pick out the Contessa 32’s entered under ISCRS and give a Co32 class result.
The skipper feedback after the 2017 race was that this made the event more enjoyable as it's possible to race against friends who are not in the fortunate position to own a Co32 so we have decided to continue with this in 2018 and beyond.
This change requires the skipper to provide boat and sail measurement data for their Contessa and while the form is simple the class association is keen to assist in this, if only to ensure that we have as many boats as possible racing with the same standard handicap.
The info below is based on the Class rules and is typical of a “Racing” Contessa from the one-design fleet.
Note that because the class rules allow the option of using a genoa furling systems and if no furling system is used the sail tack position has to be at least 150mm above the sheerline (to make it an even-field for those that choose not to), we have selected “Yes” to the Furling system question.
Note also that Contessa 32’s entering in the IRC class will not get a class result.
I hope the below is helpful and wish you well for the race. I suspect that with the quality of the sailors at the top-end of our fleet we could see some very impressive overall results.
As always, if you have any questions you are welcome to contact me via the Co32 website.
George Isted – (Official Measurer).
Boat Dimensions & Weight
Hull Length (LH) – 9.75m
Waterline Length (LWL) – 7.32m
Beam – 2.90m
Draft – 1.68m
Empty Weight – 4309kg
Sailing Displacement – 4600kg
Source of Weight Data – Manufacturers data and “real world” data from boats measured for IRC rating
Keel Configuration and Ballast
Type of Keel – Fin
Moveable/Variable ballast – No
Engine and Propeller
Type of Engine – Inboard
Type of propeller – Fixed
Number of Blades – 2
Note – following tests and much discussion it has been agreed that the difference in drag between a fixed 2-bande prop “hidden” and locked in position behind the skeg and a feathering (Darglow) 3-bladed propeller is unmeasurable and negligible at most.
Rig and Sailplan
Is the Sail plan standard for your boat’s design type – Yes
Spinnaker – Yes
Cruising Chute – No
Type of Rig – “Sloop” & “Masthead”
Mainsail Hoist (P) – 9.75m
Mainsail Foot (E) – 3.05m
Mainsail ½ width (MHW) – 1.90m
Mainsail ¾ Width (MTW) – 1.14m
Mainsail Area – 17 m2
Furling Mainsail – No
Luff Length of largest Headsail (LL) – 11.28m
Luff Perpendicular of largest headsail (LP) – 5.81m
Area of Largest Headsail – 32m2
Furling Headsail – Yes
Source of Sail Measurement Data – based on Co32 Class Rules