Judders
Well-Known Member
I am sure there must be a site where there are lists of such things? If not for indivdual boats then guidlines for certain models.
Anyone know of such a site?
Anyone know of such a site?
IRC Ratings
- Thread starter Judders
- Start date
LadyJessie
Well-Known Member
Judders
Well-Known Member
I have been over it with a fine tooth comb.
LadyJessie
Well-Known Member
Sorry, probably misunderstood your question. If you are looking for IRC ratings for specific boat types; I have never seen any. I don't think it can be produced, as rig and sails are such an important part of the rating and racers typically change the standard sail plan. I would be surprised if you could find a boat type/IRC list. If you do, please let us know.
martinb
Well-Known Member
I have never heard of such a list.
If I am interested in finding a boats a andicap I will look for it in race entry lists, ie Round the Island race, Hamble Winter Series, Warsash Spring Series etc. You can usually get a good idea, but unless the boat is a one design then the variation between boats of the same class can be marked.
Cheers,
Martin
If I am interested in finding a boats a andicap I will look for it in race entry lists, ie Round the Island race, Hamble Winter Series, Warsash Spring Series etc. You can usually get a good idea, but unless the boat is a one design then the variation between boats of the same class can be marked.
Cheers,
Martin
DavidMcMullan
Well-Known Member
A list is available, by subscription to the RORC. However no numbers are generally published in the public domain, except as others have said you can usually find them in published race info.
moondancer
Well-Known Member
I have compiled my own list. PM me with your email details if you want it.
dom
Well-Known Member
The IRC rating system is a blind rule and subject to change. It is possible to optimize a boat's rating by changing the rig, appendages, set up and so on. This cat and mouse game is played by all of the large designers such as Farr, Briand and so on. There are also specialist riggers and optimizers. Usually these services are not cheap and these guys like to play their cards very close to their chest!
Sadly a lot of what one finds on web sites and in yacht bars often amounts to little more than pub talk.
Sadly a lot of what one finds on web sites and in yacht bars often amounts to little more than pub talk.
michael_w
Well-Known Member
Googling for race results may help. Remember, apart from certain one design classes, IRC ratings are individual for each boat. Don't forget that the sums get tweaked annually.
If you are after the rating of a specific boat, the Rating Office are very helpful in a "guarded" way. You can buy copy rating tickets from them too.
If you are after the rating of a specific boat, the Rating Office are very helpful in a "guarded" way. You can buy copy rating tickets from them too.
moondancer
Well-Known Member
[ QUOTE ]
Sadly a lot of what one finds on web sites and in yacht bars often amounts to little more than pub talk.
[/ QUOTE ]
True. But it is still possible to keep tabs on actual IRC ratings, as many people do, through the race lists.
Sadly a lot of what one finds on web sites and in yacht bars often amounts to little more than pub talk.
[/ QUOTE ]
True. But it is still possible to keep tabs on actual IRC ratings, as many people do, through the race lists.
dom
Well-Known Member
That is a very good point. If one knows another boat in the same class with an optimized rating it is often possible to see what they have done.
What you might also be alluding to is the notion of comparing two boats of the same class but different ratings and match racing them in order to establish their respective polars. This can often give an idea on where to try and plumb the rule given the limited number of times one is allowed a remeasurement. This is probably one of the more valuable techniques for optimizing the rating.
What you might also be alluding to is the notion of comparing two boats of the same class but different ratings and match racing them in order to establish their respective polars. This can often give an idea on where to try and plumb the rule given the limited number of times one is allowed a remeasurement. This is probably one of the more valuable techniques for optimizing the rating.
Judders
Well-Known Member
At this stage I am not looking for the specific rating of the vessel in question, but just a ball park figure.
flaming
Well-Known Member
Ok.... More info? What type of boat?
Racecruiser
Well-Known Member
I recommend you go to the event sites and Cowes Week is probably a good place to start http://www.skandiacowesweek.co.uk/
and then go to Racing/Entry List and then the individual IRC classes. They all should drop on revaildation application for 2008 - at least I hope mine does!
What boat(s) are you interested in?
and then go to Racing/Entry List and then the individual IRC classes. They all should drop on revaildation application for 2008 - at least I hope mine does!
What boat(s) are you interested in?
dom
Well-Known Member
I don't know what boat you are looking at. Assuming it is not a one off you could find similar boats in Cowes Week, Club Races, Little Britain etc and you will get an idea. If there is a class association contact them and you might get some useful information. You could also put some more data on here.
If on the other hand you are trying to create an IRC ratings queen that looks slow but is in reality a good deal faster there is a lot of work to do. once they sense what you are up to they will be not be helpful at all. In that case don't even think of putting more detail on here!
If on the other hand you are trying to create an IRC ratings queen that looks slow but is in reality a good deal faster there is a lot of work to do. once they sense what you are up to they will be not be helpful at all. In that case don't even think of putting more detail on here!
underdog
Well-Known Member
Suggest that you look at the Irish Echo standard list http://www.sailing.ie/racing/echo_alphabetical_searchResults.asp
These are not a mile away from the average IRC handicap
These are not a mile away from the average IRC handicap
Judders
Well-Known Member
[ QUOTE ]
Suggest that you look at the Irish Echo standard list http://www.sailing.ie/racing/echo_alphabetical_searchResults.asp
[/ QUOTE ]
Perfect. Okay so it wont apply to every boat but its a good start.
Sadly, the Feeling 720 is not on there!
These are not a mile away from the average IRC handicap
Suggest that you look at the Irish Echo standard list http://www.sailing.ie/racing/echo_alphabetical_searchResults.asp
[/ QUOTE ]
Perfect. Okay so it wont apply to every boat but its a good start.
Sadly, the Feeling 720 is not on there!
These are not a mile away from the average IRC handicap
underdog
Well-Known Member
The following shows an IRC rating for a Feeling 720 in 2005
http://www.ancruzeiros.pt/anc.irc.05.html
It doesnt indicate whether fixed or lift keel.
But hope this helps
http://www.ancruzeiros.pt/anc.irc.05.html
It doesnt indicate whether fixed or lift keel.
But hope this helps
LadyJessie
Well-Known Member
This is a very impressive list of many boat types. But be aware that it only applies to ONE boat of that type that happened to participate in a race in Ireland. Another boat of the same type can have a very different IRC rating in another race. I do not think this is very useful information. Just accept the fact that IRC ratings are attached to an individual boat and not to a boat type.
underdog
Well-Known Member
Whilst I accept to quote the Echo blurb "ECHO standards are an approximate value, based on available data, for a boat of the type in question. There is no relationship between a boat's IRC TCC [if it has one] and its ECHO standard. "
None the less of the 7 IRC rated, fairly standard sub 8 metre, cruiser racers in our club their current IRC ratings range from plus 1% to minus 2% from their Echo standard.For that reason
the Echo list is a useful tool in determining the likely area where an IRC handicap might fall for a particular class of boat
None the less of the 7 IRC rated, fairly standard sub 8 metre, cruiser racers in our club their current IRC ratings range from plus 1% to minus 2% from their Echo standard.For that reason
the Echo list is a useful tool in determining the likely area where an IRC handicap might fall for a particular class of boat
