How to Fix the USPN system
One:
Problem:
The US system takes this even further into BS as it is based on results, so as long as there are a lot of recreational sailors on a particular brand, or no one sails them at all the number will be slanted away from its theoretical potential.
Only use the caclulated PN number AFTER A CLASS HOLDS a Nationals with 10 boats in attendance for two years.
TWO
switch to one of the systems being used in Europe now.
Agree, this would be the base number in the USPN table an obtained by mapping the rating as Scooby suggests.
THREE
It would be adjusted based on performance data so long as the class continues to hold a national championship (pertains to all racing classes required to meet this standard). The PN could change only after the class reaches the status of a viable racing class.
These changes supplement the principles of the USPN
Annual changes in ratings are modest. The elapsed time for each boat in a race is measured against the primary and secondary yardstick classes in the race and a handicap calculated for each boat. These are stored in the database by Beaufort number. Annual changes in ratings are modest. The elapsed time for each boat in a race is measured against the primary and secondary yardstick classes in the race and a handicap calculated for each boat. These are stored in the database by Beaufort number. When there is new data, the previous ratings are adjusted by 25% of the difference between the old ratings and new history. .
Assumptions made in generating Portsmouth Yardsticks (D-PN) include:
That each boat placing first in each class was sailed to its true potential by a perfect crew according to flawless strategy;
That all boats sailed the same course, experienced the same wind/water conditions and degree of interference of clear air;
That all one-design boats conform to class specifications and rules, and use sails specified by the class; and
That boats with multiple sail inventories (genoas, spinnakers, etc.) utilize the proper sails for the wind conditions and legs of the course.
Since the changes every year are small... getting the rating correct in the begining is vital... Starting with SCHRS or Texel solves this problem.
Requiring the class to hold a natinoals for two years assures that the sailors are actively racing their boats...
the sailors are closer to the USPN Standard.
sailed to its true potential by a perfect crew according to flawless strategy;
