US SAILING

Portsmouth Yardstick Multihulls


2008 TABLE OF NORTH AMERICAN PORTSMOUTH NUMBERS
AND WIND DEPENDENT HANDICAPS

MULTIHULL CLASSES
March 2008


Copyright © 2008 by N. E. Richards and J. F. Spinnler
 Reprint permission by authors is required  for material in the Portsmouth Yardstick
Please contact hobockd@aol.com for permission
 

Changes 09/2008:  F16
MULTIHULL CLASSES NAPY D-PN WIND HC FOR HANDICAP RANGE
*************************** CODE   0-1 2-3 4 5-9
18m2 (Cat.1 Open) 18SM-1 64.2 68.2 65.4 63.4 60.0
18m2 (Cat.2 incl 11' N5.5) 18SM-2 67.2 69.0 67.3 66.5 64.0
A Class Cat A-C 64.5 68.8 65.6 63.8 60.9
A Class Cat >200# all-up A-C2 70.5 72.9 71.4 69.0 66.3
Antrim 30+ Tri ATM30 64.5     (63.0)  
ARC 21 ODR spi ARC21 61.8 65.3 62.7 61.1 58.0
ARC 22 ODR spi (SC22) ARC22 57.0 60.4 57.8 56.7 55.3
Blade F16                              See: F16          
C Class Cat (Slp, 2-up) C-C 61.5   (64.2)    
Capricorn F18                      See: F18          
CFR20 Uni w/spi CFR20 57.9 61.8 58.2 58.0 57.3
Dart 18 Slp 2-up D18 76.3 81.3 79.7 76.6 70.8
Dart 18 Uni 1-up D18U 78.7 84.0 82.2 78.6 72.2
Dart 20 Slp 2-up D20 72.5 76.0 74.9 72.9 66.2
Dart Hawk F18                      See: F18          
Dingo DINGO 81.1 87.3 83.5 80.5 74.1
F-24 Tri Mk I                      All Sails F-24 76.1 79.9 76.7 75.6 74.5
F-24 Tri Mk II                     All Sails F-242 74.3 77.6 75.3 74.1 72.0
F-25C Tri Cbn                  All Sails F-25C 61.9 67.5 64.4 62.1 57.7
F-27 Formula                   All Sails F-27F 69.4 71.9 70.1 67.2 65.1
F-27 Tri                             All Sails F-27 70.5 72.4 73.0 71.4 65.7
F-28 Tri Stock                   M&J F-28 67.1 70.6 69.3 67.2 63.9
F-28R Tri                           All Sails F-28R 65.0 67.8 66.6 64.8 61.3
F-31 Tri Stock                   M&J F-31 65.4 72.0 67.0 66.1 66.2
F-31R Tri                           All Sails F-31R 61.9 65.4 64.1 62.5 59.9
F-750 Sprint  (24' )          All Sails F-750 67.6 [69.9] 68.6 [66.0] [63.2]
Formula 16 spi F16 63.0 66.0 64.5 61.9 60.1
Formula 18 Slp spi F18 62.4 65.4 63.9 61.3 59.5
Formula 18HT Uni spi 2up F18HT 60.0 63.1 60.5 59.6 57.3
G-Cat 5.0m G5.0 76.1 82.0 78.2 76.0 72.0
G-Cat 5.7m G5.7 73.2 78.0 75.0 72.2 68.2
Hobie 14 H14 86.4 95.0 90.1 85.6 80.9
Hobie 14 Turbo 1-up H142 83.1 86.3 85.1 81.1 79.4
Hobie 16 H16 76.0 81.5 78.7 74.1 71.3
Hobie 17 (1-up) H17 74.0 78.3 76.2 73.7 69.7
Hobie 17 Sport Slp 2-up H17P 74.5 78.0 74.7 74.0 71.5
Hobie 18 & 18 Magnum H18 71.4 76.8 73.5 69.5 66.8
Hobie 20 Miracle H20 65.0 69.1 66.4 64.4 61.4
Hobie 21 no spi H21 67.0 71.9 69.2 66.3 61.7
Hobie Fox spi HFOX 60.4 63.7 61.5 60.5 58.0
Hobie FXOne jib n/s HFX1T [70.1]        
Hobie FXOne spi 1-up HFX1 S 68.5 72.0 70.4 69.2 65.7
Hobie Getaway HGET 83.3 87.5 86.2 82.5 80.0
Hobie SX-18 spi H18SX 71.3 75.5 73.0 70.1 66.3
Hobie Tiger F18                    See:  F18          
Hobie Tiger ODR spi HTIG 62.1 65.3 63.6 61.2 59.5
Hobie Trifoiler HTRIF [75.0]        
Hobie Wave HWAV 92.1 95.8 92.7 89.5 89.2
Inter (see Nacra)            
Isotope Slp 1-up ISTP 74.3 78.4 74.3 73.8 70.1
Isotope Slp 2-up 250#Crew min ISTP2 77.2 82.0 77.5 76.7 72.0
Loka   (A Class) LOKA 76.2 80.3 78.0 75.5 72.0
Marstrom 20 carbon spi M20 58.0 61.0 59.0 57.5 55.0
Mystere 4.3 Slp1-2up spi M4.3 S 78.8 82.7 81.4 77.3 75.7
Mystere 4.3 Uni 1-up n/s M4.3U 83.0 [88.9] 86.3 [83.9] [79.0]
Mystere 5.0 XL 2-up M5.0XL 75.6   (77.0) (70.1)  
Mystere 5.5 Slp M5.5 66.2 70.9 68.8 65.7 61.9
Mystere 6.0 M6.0 63.9 68.4 66.5 64.0 61.2
Mystere 6.0XL & w/wing M6.0XL 64.2 69.0 66.9 63.7 60.2
Mystere Twister F18              See: F18          
Nacra 17 Uni no spi N17 73.2 75.7 75.0 73.2 71.0
Nacra 18 Slp spi (NI18) N18 64.6 67.9 65.6 64.4 60.5
Nacra 20 Slp spi N20 59.3 61.9 60.2 58.5 57.6
Nacra 450 Turbo 1-up N450T 76.6 80.5 79.8 77.0 74.4
Nacra 5.0 Slp 2-up N5.0 77.0 80.5 78.5 76.2 73.0
Nacra 5.2 Slp 2-up N5.2 72.1 78.0 74.8 71.6 67.4
Nacra 5.5 Slp 8.5' N5.5 67.0 73.5 69.5 65.7 61.2
Nacra 5.5 Uni 11' beam      See: 18SM-2          
Nacra 5.5 Uni 8.5' N5.5U 69.7 74.4 71.9 69.0 64.5
Nacra 5.7 2-up N5.7 72.6 75.5 74.8 72.2 68.6
Nacra 5.8 No.Amer. 2-up N5.8NA 66.5 70.4 68.5 65.4 62.0
Nacra 5.8 Orig. 2-up N5.8 66.6 72.1 69.3 65.7 62.2
Nacra 500 Slp 2-up N500 76.4 80.3 78.8 76.1 72.6
Nacra 570 2-up N570 70.5 75.0 73.7 70.5 66.3
Nacra 6.0 No.Amer. 2-up N6.0NA 62.6 65.4 64.3 61.9 59.5
Nacra F17 Uni spi NF17 66.7 69.0 68.0 66.6 65.0
Nacra F18                               See: F18          
Nacra Inter   (see Nacra)            
Phoenix PH 77.8 83.9 80.0 77.5 73.3
Pixel 23 Outrigger spi PIX23 (82.0)   (81.9)    
Prindle 15 P15 76.2 81.5 78.3 75.7 72.1
Prindle 16 P16 77.5 84.1 80.7 76.3 71.3
Prindle 18 P18 74.8 81.0 77.8 74.7 70.5
Prindle 18-2 P182 69.1 72.6 71.7 68.7 65.1
Prindle 19 P19 66.4 71.7 68.9 64.5 62.3
Prindle 19MX no spi P19MX 64.4 69.2 66.6 64.0 61.0
Raider 30 RDR30 [61.9]        
RC-27 All Sails RC-27/41 [56.0]        
RC-27 All Sails M.Hd spi RC-27/44 56.5 59.3 57.7 56.5  
RC-30 All Sails RC-30/45 53.1 55.5 54.0 52.3 50.2
RC-30 All Sails (MugRig) RC-30/41 [55.6]        
Reynolds 21 REY21 (81.5)        
Reynolds 33 REY33 (60.1)   (59.0)    
Sea Spray 15 (Sea Moth) SPY15 77.9 85.1 80.7 76.1 73.0
Shark SK 73.0 77.1 75.4 73.2 68.0
SL 16 Slp spi SL16 [73.0]        
Stiletto 23  3-up STL23 66.3 70.5 67.5 65.4 61.3
Stiletto 27 STL27 74.8 79.0 76.6 75.4 69.5
Stiletto 27 All Sails STL27R (64.7)        
Stiletto 30 STL30 67.3 72.9 69.1 68.5 65.3
SuperCat 15 Sloop SC152 (77.0)        
SuperCat 15 Uni SC15 78.0 83.5 79.5 77.5 73.2
SuperCat 17 SC17 73.9 79.6 76.5 72.3 69.0
SuperCat 20 33' mast n/s SC20 65.0 70.4 67.3 65.2 60.8
SuperCat 20 TallRig n/s SC20H 63.8 67.1 65.0 63.6 59.8
Taipan 4.9 Slp no spi T4.9 68.2 72.7 70.6 67.5 64.9
Taipan 4.9 Uni 1up no sp T4.9U 69.5 73.5 71.4 68.9 65.9
Taipan 4.9 w/spi                    See: F16          
Taipan 5.7 Sloop w/spi T5.7 60.7 66.0 63.0 61.2 58.0
T-Gull 23 TGL23 79.5   (76.6)    
TopCat K3 TOPC3 (75.0)        
Tornado (Int.) 2-trap spi TORN 59.0 62.2 60.5 57.8 55.5
Tornado 1-trap no spi TORN2 63.9 67.0 65.6 63.1 60.6
Trac 14 TRC14 84.5 (90.5) 86.9    
Trac 16 TRC16 76.3 82.1 81.1 76.1 69.9
Unicorn (A Class) UC-A 75.2 81.3 76.5 73.6 69.0
Wilson 16 Outrigger WLS16 85.0 (85.6) (84.4) (83.2)  
WindRider 17 Tri WR17 81.4   82.2 [81.5]  

Supporting Clubs 2008

In the Tables:
Parentheses ( ) around numbers indicate between 5 and 15 data points
Brackets [ ] around numbers indicate calculated number or fewer than 5 data points

 Ratings are based on boats being rigged in accordance with one-design class rules and with class sails and equipment.
In fairness to other competitors, each competitor should comply with minimum crew weight and number of crew
Please submit race results by November 1, 2008, including
Class Code, Average Wind Speed, Elapsed Times and Corrected Times to:
 US SAILING, Portsmouth Numbers Committee, Box 1260, Portsmouth, RI 02871
or via email to hobockd@aol.com