Oday 20

[DanaT]

Sold my Mariner several years ago to buy a power boat. Stupid decision (family led). Made a impulse buy this past weekend (I know, not recommended) and bought a 76 Oday 20 against all recommendations on this site for a planned rational purchase. Needs fair amount of TLC but rigging, sales, decks, all seem pretty good. Hasn't been taken care of very well last several years.

I'm curious, how does this boat rate against the Mariner? I see it has less sail area but I don't know how to interpret the ratios and such. Mariner wasn't very fast but very stable, just right for a novice sailor such as I am.

 

[Brian S]

Was going to give you Portsmouth numbers for both boats, 'cos you asked "What's she rate?" but the jerkwads at US Sailing have changed their web site in the past month, and have put it behind a login.

 

[jepomer]

D-PN
ODY20 101.7 O'Day 20

MAR19 101.8 Mariner
MAR19B 102.1 Mariner (centerboard)

RDS19 96.9 Rhodes 19
RDS19B 95.8 Rhodes 19 (centerboard)

ODY19 95.2 O'Day 19 (my boat — going to have to do some serious on water comparisons after reading this)
ODY192 98.3 O'Day 192

PHRF (New England)
O'Day 20 270
O DAY MARINER 19 294

Rhodes 19 234
Rhodes 19 (centerboard) 243

 

[DanaT]

I don't know what these numbers represent

 

[Siamese]

Numbers, shmumbers...the O'day 20 will not disappoint you. Small boats I've owned are the Grumman 16 Flyer, Cal 21, Precision 23, and the O'day 20. Never mind the big boats I've owned.

I only sailed the O'day for one season, but remember it as a true pleasure to sail. Good manners, and fast enough. I recall locking the tiller when close hauled, and be able to let her steer herself while I went forward to fix some real or imagined problem.

 

[DanaT]

Thanks for sharing Siamese. I have all winter for my anticipation to build.

 

[jepomer]

I don't know what these numbers represent

Unfortunately, a table format doesn't work in this forum. I was tired and consequently a bit lazy by not giving any additional information to describe the handicaps.

The first characters are the D-PN (Dixie Portsmouth Yardstick Number) code name for the specific model.
The next number is the "handicap" for the "time on time" adjustment if different boats are racing together.

Looking at the numbers for the O'Day 20 and the Mariner, the two handicap values are very similar so they should be about the same speeds!

The PHRF (Performance Handicap Racing Fleet) handicaps are also similar but not as close. PHRF handicaps also have a few more variables that can adjust the final handicap number.

So in a quick summary, the O'Day 20 will give you a very similar level of performance to a Mariner 19. Every design will have some differences, but in this case it should be close enough to what you were used to yet different enough to learn a few new things!

I think you made a good choice. Enjoy it on the water and any of the maintenance/repairs you get to do over the winter. Focus on the things that are safety related. The cosmetic things can wait if you need to hold off on anything.

 

[Sunbird22358]

The Standard figure for sail area on the 1976-78 O'DAY 20 is 190 SqFt, MARINER has 185 SqFt., So, the 20 actually has slightly more sail area than the Mariner. I think your figures showing less must have been referring to the 1973-75 O'DAY 20 which had a masthead-rig with a shorter mast than the later Fractionally rigged 20s. Anyway, I would think the 20 would be more or less similar in sailing performance to the Mariner, with more ballast the 20 may be more stable, but still would seem to perform close to the Mariner.