[Just Another Sailor]

Old IOR Designs...

How many different designs have IRC Ratings.

Peterson
Holland
Farr
Kauffman
DuBois

From old early 1970 to Late 1990 40' - 50' frac designs

Here in the states we still have many of these designs actively racing. Many are still very competitive under PHRF. IOR owners will be wary of accepting IRC if they see their ratings skew against them.

What is your experience w/ IRC & old IOR designs? Please supply examples.

[Just Another Sailor]

Need to keep it at the top of the forum...

[Laserslave]

well the reason why i think your not gettin so many answers is because it really isnt known yet...IRC is a new system and the old IOR boats probably havent checked it out yet...so there arent many examples around

[GBH]

Pretty much all the IOR boats in the UK have or had IRC certs, and typically they all do pretty well if they are kept up to scratch in sials and stuff. 1/2 tonners do particularly well cos you can sail them with six instead of the IOR 5 and then a lot were really helped by keel changes to get away from the wooden tips and stuff - sounds rather like IMS these days no??! Also rudders got improved so they handled better....one tonners were good to0....only a couple of 50's around ever and they went out of the country. Still lots of 1/2 tonners being raced here in Ireland and 1/4 tonners making a comeback too - there a 1/2 ton cup even being re-run.

[chrisba]

Yeah, an event in was run Belgium (?) for any boat that at any time had a IOR half-ton certificate ( was it 22.5ft?, I can't remember ). I was raced under IRC, so not level rating, but the photos bought back great memories. Several Brit boats went, but a Frenchman won ( of course ).

There are plans for another one next year, possible in UK.

I don't think the old Half-Ton cup was awarded though.

[Chris 249]

Almost all of them have IRC ratings.

I can't find my old files of IRC ratings, but the following may be a start. Most come from Irish ECHO golf handicap standards, which use IRC rounded off to the nearest .005.

Some are smaller than 40 but they'll give you an idea of IOR v IRC.

Frers IOR 50 fractional racer, 1991? - 1.173
Castro IOR 43' 1987 - 1.1200
Peterson 1976/77 masthead 3/4 ton .9300
Db1 3/4 ton - .965
Db2 3/4 ton - 1.000
Farr 1104 - .995 (1975 Farr 36' IOR cruiser/racer; c/r version of Sweet Okole).
Farr 40 1983 1 ton - 1.0800
Farr 43 (1987 IOR 43 fractional racer) - 1.1150
'75 Holland masthead 42' 2 ton - 1.0200
Macgregor 26X .8700 (sorry, couldn't help myself)
Generic one ton - 1.0800
Generic late 2 ton - 1.1400
Peterson 45, 1979 masthead IOR (I think) - 1.055
X One Ton - 1.0750
Peterson 1976 masthead IOR 2 ton - 1.0279 IIRC
Peterson 1975 masthead IOR 2 ton - 1.015 IIRC
Kaufman - dunno but I noticed that the IRC on the 1976 Kaufmans 38s I used to sail on was OK, but a sistership was a bit high - 1.013 or something.

Most popular IOR designs will have IRC.

[Just Another Sailor]

Chris 249, on Nov 27 2004, 12:41 PM, said:

Almost all of them have IRC ratings.

I can't find my old files of IRC ratings, but the following may be a start. Most come from Irish ECHO golf handicap standards, which use IRC rounded off to the nearest .005.

Some are smaller than 40 but they'll give you an idea of IOR v IRC.

Frers IOR 50 fractional racer, 1991? - 1.173
Castro IOR 43' 1987 - 1.1200
Peterson 1976/77 masthead 3/4 ton .9300
Db1 3/4 ton - .965
Db2 3/4 ton - 1.000
Farr 1104 - .995 (1975 Farr 36' IOR cruiser/racer; c/r version of Sweet Okole).
Farr 40 1983 1 ton - 1.0800
Farr 43 (1987 IOR 43 fractional racer) - 1.1150
'75 Holland masthead 42' 2 ton - 1.0200
Macgregor 26X .8700 (sorry, couldn't help myself)
Generic one ton - 1.0800
Generic late 2 ton - 1.1400
Peterson 45, 1979 masthead IOR (I think) - 1.055
X One Ton - 1.0750
Peterson 1976 masthead IOR 2 ton - 1.0279 IIRC
Peterson 1975 masthead IOR 2 ton - 1.015 IIRC
Kaufman - dunno but I noticed that the IRC on the 1976 Kaufmans 38s I used to sail on was OK, but a sistership was a bit high - 1.013 or something.

Most popular IOR designs will have IRC.

You rule buddy!!!

But isn't the echo system an adjusted system like PHRF. Couldn't the rating listed be way off from an actual IRC cert.?

[Chris 249]

Thanks.

Nah, the ratings above are the STANDARDS; ie the base rating they use BEFORE they start throwing in the "golf handicap".

Also see Cork Week results, and Cowes. I had a huge list which crashed with my computer and I can't find the *&^%$%$##@ back-up! :(

[Just Another Sailor]

GBH, on Nov 27 2004, 10:23 AM, said:

Pretty much all the IOR boats in the UK have or had IRC certs, and typically they all do pretty well if they are kept up to scratch in sials and stuff. 1/2 tonners do particularly well cos you can sail them with six instead of the IOR 5 and then a lot were really helped by keel changes to get away from the wooden tips and stuff - sounds rather like IMS these days no??! Also rudders got improved so they handled better....one tonners were good to0....only a couple of 50's around ever and they went out of the country. Still lots of 1/2 tonners being raced here in Ireland and 1/4 tonners making a comeback too - there a 1/2 ton cup even being re-run.

Do you have any ratings for these boats?

[Jambalaya]

Dick Dasterdly - Beret 1/2 tonner - irc 0.952 (raced cork week 2004, prior owners? raced JOG in 2003 sucessfully)

[chrisba]

Most custom half-tonners seem to be around the .920-.940 region. Older, production boats would probably be lower. Scampi's, which rated half-ton back in the early seventies had dropped to nearly quarter-ton by the end of IOR, and now rate about 0.885.

[Chris 249]

OzRick, on Nov 27 2004, 09:24 PM, said:

Chris - do you have a list of half-ton IRC numbers? I'd especially like to know about any for Custom 30's of course ..... :-), but also curious about Cav 32/975, Dunc/Compass 29, Carter 33, Currawong 30, and Lambert 1/2ers. Ever had a cert for your one?

[QUOTE]

I'll drag out my old hard drive when I can, there's a lot of info on there IIRC. Chrisba is right, most late 1/2s are around .920-.940 and older halves around .885-.905.

My near sistership is around .885 IIRC which seems OK to me. My rating will be higher as I have a different rig or rudder and I'm pretty light.

I may have a Cav rating but it would be very old. Keep an eye on the CYCA site 'cause the Cav Gilliwa is doing this year's Hobart and may have an IRC. It'll be a slow trip for them, we murdered them in very strong conditions a couple of years back in our shorter, older half. The Cavs were actually very succesful in NZ when they were new but everyone thinks of them as cruisers now it seems.

Currawongs are .885-ish IIRC. Carter 33s are 3/4 tonners rating around the .930 mark IIRC. I think you'll be scratching for a Lambert or Compass 29......I may have a very old Compass 28 figure which should be similar for the 29 but the Compass guys assure me that the Dunc 29, being a modified 28, is a bit quicker than the 28/29 which were very similar according to their designer Don Lees (I did an article about their design years ago so I went into this).

[winch-handle]

Anyone specically have one tonner 1985-86 era? Frac rigged about 12,000 lbs?

[Just Another Sailor]

IOR / IRC ratings?

Need one tonner /2 tonner ratings

[Chris 249]

You'll have to get looking in Cowes Week, Cork Week, Spi Ouest etc results.

Here's a few more, many not 1/2 ton but they'll give you an idea perhaps;

Sapphire (Andreiu one ton, dunno what year) - 1.068

Peterson masthead IOR 43' 1979, alloy - 1.055

"Sagacious", Farr 40 1 ton racer, 1987 - 1.045 (IRC modified with no overlap??)

Canterbury - Davidson one ton racer/cruiser, 1985 - 1.065

Frers 45 (I think an IOR masthead kevlar/carbon racer from the mid '80s) - 1.075

Capricorno (C 90s Farr IOR 50) 1.188.

41' heavy masthead S&S IOR racer circa 1971 - .9900

Joubert (France) light-ish wide-stern IOR 42, C 1981? - 1.041

Swan 441 (Swan version of 1977 Holland 44) - 1.025

"IOR 50" - 1.190

Swan 51 - 1.099

Duboios 1/2 tonner "Alchemist"; dunno her age - .922

[Chris 249]

Rick, there's a Carter 33 in Victoria, Revenge, at .927 which seems normal to me.

[Burnsy]

According to Cork Week, my DB1 3/4 tonner is a .956