Observations Observations 1) The following observations are based on PHRF data for some 3600 boats. Age data exists for 1000 of these boats,...
OK, sound like the Farr 36 is pretty qick for its length. Are these the correct details of displacement, sail area etc for me to include in my...
Hello Jeff, I have data on all except the Farr 36. I will make some comparisons shortly based on this data and my analysis. I have found that...
Hello Jeff & Superpiper, Firstly I agree with Jeff about the benefits of tactical advantage, and that certainly is an issue when one boat has a...
Hello Erik, Yes I agree entirely to everything you wish to achieve, and I even think it is quite possible to get a lot of useful information...
Hello Erik, Yes I think you are on the right track!. I now have data on around 3,500 boats. I have the age for around 1000 or so of these and...
Forgive me for not fully understanding..... do you mean that the specified "Ballast" for these IMS boats may be say 50% of the total displacement,...
A basic performance measure I am not trying to create a rating rule, or even a design tool, but simply to find a basic reference measure from...
As I see it, the answer is definitely "Yes", a basic reference using Displacement, Length and Sail area would quite clearly identify the most...
The issue I am raising here is: "How do you know if they are slow designs or not?" There must be fundamental basis on which we can make a...
The rating rules do tend to favour boats of a particular configuration or seek to handicap out any real advances in design in the interests of...
Firstly many thanks for your efforts with providing this information. I am now including this data in my analysis. I is quite useful! The one...
Thanks for the tips, Unfortunately I cannot find much useful performance comparison data here, as they do not have any rating or performance...
I am conducting a study of the design performance improvements in yachts over the past 30 years and am after comparative data of real performance...
I have found a nice resource of data at http://www.yralis.org/ under "Handicap Racing Information with Rating Froms" , "Base Ratings". I now...
You are correct, but we need to start somewhare and perhaps it is easy enough to categorise each type based on experience. Another point is that...
This PHRF sounds ideal for our discussion! It is quite straight forward to predict a boats potential speed from the D,L & SA data, but I do not...
Hello Jeff, In fact you have in fact now understood very well what I am proposing and have provided some very good information and comparisons....
Fundamental improvements Measure of performance Billy Hughes has chosen to use Speed/Length ratio as a basic parameter for comparing...
What you are describing is essentially to set up a Dinghy like a Sailboard, ending up with the rig and crew at the back of the boat. This is...
