race two class yachts, the IOM and the R6M.
Although we hold organised racing for only the IOM and R6M classes we will welcome anyone with any RC sailing yacht. However we do suggest you contact us first, as occasionally sailing is changed or cancelled. Details of how to make a last minute check that sailing has not been cancelled can be found on the Sailing Programme.
The Six Metre Yacht
The International One Metre
Note: Illustrations above are not to scale
The Beautiful Sixes
The sixes are basically semi-scale versions of their full size cousins. The six metre radio controlled yachts are usually around 1500 mm in length, are yacht-like in appearance and displace around 12 Kg. The class is very active in the UK but seems temporarily dormant in other countries.
Six Metre yachts were raced in the Olympic Games from 1908 until 1936. The rule used today dates from the last rule simplification in 1933.
The Rule used to calculate the rating for a radio controlled 6 metre yacht is shown below:
L+2d-F+S + penalties
The rating for any given yacht should be no greater than 833mm
is the hull length 13mm above the waterline, plus taxes concerned with the hull shape at bow and stern, which typically add another 80mm to the hull length used in the formula (for the purposes of rating calculations)
is the girth difference between the skin girth and the chain girth measured at a fixed point along the hull
|is the freeboard which shall be no more than 101mm
|is the square root of the sail area
|penalties are added for excessive draught and tumblehome
NOTE: This is a much simplified version of the rating calculations. Please refer to the class rules on the Six Metre Owners' Association web site for more precise information.
Measuring a Six Metre
yacht is a complex procedure requiring specialist equipment including
a measuring tank and measuring rig (see picture right).
This picture shows
a typical 'dry' measuring rig in which measurements including draft, girth,
water line length etc are taken.
Six metre yacht pictures can be seen in the Picture Gallery
The Fun Ones
The International One Metre (IOM) class yacht is, as the name implies, one metre in overall length. The design was created around 1988/89 with the aim of creating a class of model yacht that controlled costs while at the same time allowing the home builder some latitude in hull design and construction, within certain limits. There is now a wide range of designs and kits available from specialist suppliers. Contact the club or speak to a club member (pop down and meet us - you'll be made very welcome) if you wish to get started by either buying new, building or buying second hand.
Other One Metre yacht pictures can be seen in the Picture Gallery
Both Sixes and One Metre yachts are featured on the SAILSetc web site.
We are happy to teach beginners the yacht racing rules.
Come along and have a go.
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