Stuart Cresswell wrote:

RYA Portsmouth Yardstick Scheme (on which Dixie was based in 1961) uses
several Primary Yardstick classes so making it more a level "playing
field" in comparing classes' performances.

These include single-handed and two handed, una rigged, two sail and
three sail (with conventional and asymetric spis), modern and older
designs.

The biggest problem with the US Portsmouth system is that reported results
are few & far between. There is a great dearth of good numbers to crunch.

It would make sense to pick a larger number number of boat types to use as
inputs to the basic yardstick. From what I've seen & heard the RYA system
would be a far better model to follow.

FB
Doug King