PY LOOK ALIKE

SCHRS is the principal handicapping system recognized by World Sailing for cat on cat racing. Where monohulls and catamarans race together in the UK, Portsmouth Yardstick (PY) ratings are commonly used. The PY Look Alike ratings below are provided to enable catamarans without official PY Ratings to compete.

The Portsmouth Yardstick Committee and SCHRS Technical Committee have agreed a conversion factor that may be applied to any make, model and configuration of catamaran for which an SCHRS rating has been approved by SCHRS so that it may be raced under the Portsmouth Yardstick. The conversion formula is SCHRS x 678 = PY and is shown in the column headed PY LOOK ALIKE.

To strengthen the SCHRS to PY conversion factor, UK clubs are encouraged to provide data to the RYA for all races in which catamarans compete. If such races are initially scored under SCHRS, sailing scoring programs such as Sailwave or HAL Race Results are capable of dual scoring under a second system such as PY. This would allow for results to be considered under both SCHRS and PY and the results of PY Racing to be simply uploaded direct to www.pys.org.uk, strengthening both schemes. For advice on dual scoring use scoring software help systems or contact RYA Technical and Racing Services.

ClassRatingCrewPYPY
Look
alike
2Win Sonic1.2912 875
2Win Sonic Solo1.2721 862
2Win Twincat 13 without Spinnaker1.5042 1020
2Win Twincat 15 Sport1.2392 840
2Win Tyka1.3822 937
A-Class Foils0.9781 684663
A-Classic (straight/constant curve foils)1.0081 683
AHPC Capricorn F181.0002 678
AHPC Taipan 4.91.0802 732
AHPC Taipan 4.9 Spinnaker1.0302 698
AHPC Taipan 4.9 Solo1.1061 750
AHPC Taipan 4.9 Solo Spinnaker1.0401 705
Alado 18 Aileron1.0862 736
Alado 18 F181.0002 678
Bim 16 Double Spinnaker1.1612 787
Bim 16 Javelin 16 Solo Spinnaker1.0281 697
Bim 16 Javelin Double Spinnaker1.1242 762
Bim 18 Class A (>100kg)1.0821 734
Bim 18 Double1.0702 725
Bim 18 Double Sloop1.0522 713
Bim 201.0252 695
Bim Javelin 18 Hightech1.0142 687
Bim Javelin 2 (not 18HT)1.0452 709
Bimare X16 Double Spinnaker1.1302 766
Bimare X16 Solo1.0991 745
Bimare X16 Solo Spinnaker1.0471 710
Bimare X16FPlus1.0332 700
Bimare F161.0392 704
Bimare X4 F181.0002 678
Blade 16 Double light (WS <123kg)1.0172 690
Blade 16 Solo light (WS <119kg)1.0221 693
C 4.81.2882 873
C 4.8 Major1.2512 848
Catapult1.2631 856
Cirrus 16 Q F 161.0432 707
Cirrus 16 Q Solo F161.0671 723
Cirrus B1 F181.0002 678
Cirrus Ecole1.1002 746
Cirrus Energy Regate1.1152 756
Cirrus Energy Regate Solo1.1471 778
Cirrus Evolution1.0422 706
Cirrus Evolution Solo1.0901 739
Cirrus F181.0002 678
Condor 161.1822 801
Dart 161.3012 882
Dart 16 X Race Spinnaker1.2352 837
Dart 181.2152 824824
Dart 18 Cat Boat1.2321 835
Dart 18 Spinnaker1.1692 793
Dart 201.0962 743
Dart 20 TSX1.1052 749
Dart 20 TSX Spinnaker1.0682 724
Dart 60001.1282 765
Dart Hawk F181.0002 678
Dart Sting Double1.3452 912
Dart Sting Solo (with jib)1.2541 850
Dart Sting Solo (without jib)1.3601 922
Diam 3 F181.0002 678
Drake1.0282 697
Falcon F16 Double1.0362 702
Falcon F16 Cat Boat1.0581 717
Falcon 16 Double light (WS <123kg)1.0172 690
Falcon 16 Solo light (WS <119kg)1.0221 693
Flying Phantom0.8982 609
Flying Phantom Essentiel0.9512 645
Flying Phantom Essentiel side racks0.9442 640
Formula 16 Double1.0322 700
Formula 16 Solo1.0481 711
Formula 181.0002 680678
Goodall C2 F181.0002 678
Goodall Viper Double1.0452 709
Goodall Viper Solo1.0631 721
Gwynt 141.2512 848
Hawke Surfcat 70201.2911 875
Hawke Surfcat 7020 main only1.4661 994
Hobie 131.5812 1072
Hobie 141.4141 959
Hobie 14 race (with jib)1.2831 870
Hobie 151.3052 885
Hobie 161.1972 812
Hobie 16 Easy1.3022 883
Hobie 16 Spinnaker1.1462 777
Hobie 17 (without wings)1.2121 822
Hobie 17 (with wings)1.1991 813
Hobie 181.0902 739
Hobie 18 Formula1.0812 733
Hobie 18 Formula Spinnaker1.0312 699
Hobie 18 Formula 1041.0582 717
Hobie 18 Magnum (with wings)1.0952 742
Hobie 18 SX1.1092 752
Hobie 20 Formula1.0102 685
Hobie 210.9892 671
Hobie 21 Spinnaker0.9432 639
Hobie 21 Spinnaker (3 Crew)0.9823 666
Hobie 21 Formula0.9422 639
Hobie Advance1.5342 1040
Hobie Catsy2.0972 1422
Hobie Dragoon Club1.4762 1001
Hobie Dragoon Xtrem1.4102 956
Hobie Fox F200.9652 654
Hobie FX One Cat Boat1.0861 736
Hobie FX One Double1.0432 707
Hobie FX Xtrem1.0452 709
Hobie Getaway1.2421 842
Hobie Max1.1352 770
Hobie Max Youth1.1462 777
Hobie Pacific (no Spinnaker no wings)1.1382 772
Hobie Pacific (Spinnaker no wings)1.0912 740
Hobie Cat T11.4562 987
Hobie Cat T1 Spinnaker1.3992 949
Hobie Teddy1.5943 1081
Hobie Tiger F181.0002 678
Hobie Twixxy1.4313 970
Hobie Wave1.4962 1014
Hobie Wildcat F181.0002 678
Hurricane 4.91.1402 773
Hurricane 5.51.0482 711
Hurricane 5.91.0512 713
Hurricane 5.9 Spinnaker1.0022 679
Hurricane 5.9 Sport1.0212 692
Hurricane 5.9 SX1.0252 695695
Hurricane 5001.1872 805
Hurricane 500 Spinnaker1.1062 750
KL 15.5 - SL 15.51.2302 834
KL 161.1742 796
KL 17 Power1.1462 777
KL 17 Regate1.1712 794
KL 17 Regate Spinnaker1.1222 761
KL 17.5 Tonic (without Spinnaker)1.1902 807
KL 18 Regate1.0962 743
KL Booster1.1332 768
KL Phoenix F181.0002 678
M by Erplast1.5002 1017
M Race by Erplast1.4142 959
Magic F181.0002 678
Mattia 141.4842 1006
Mattia 161.2482 846
Mattia 171.0412 706
Mattia 18 (104)1.1142 755
Mattia 18 (104) Spinnaker1.0632 721
Mattia 18 F181.0002 678
Mattia 18 Raid Spinnaker1.0222 693
Mattia 201.0402 705
Mattia 20 Sloop1.0052 681
Mattia 20 Spinnaker1.0292 698
Mattia 20 Venti1.0172 690
Mattia Declic1.2262 831
Mattia Esse1.0892 738
Mattia Esse Solo1.1891 806
Mattia Esse Sport1.0422 706
Mattia Esse Sport Solo1.0911 740
Mattia Flash F181.0002 678
Mattia Smile1.1402 773
Mattia Smile Sport1.1002 746
Miracle 201.0162 689
Miracle 20 (without Spinnaker)1.0682 724
Mystere 2000 F200.9872 669
Mystere 5.01.1972 812
Mystere 5.0 Xl1.1432 775
Mystere 5.5 Fun1.0972 744
Mystere 5.5 Master1.0622 720
Mystere 5.5 Master Spinnaker1.0182 690
Mystere 6.00.9932 673
Mystere Twister F181.0002 678
Nacra 151.0982 744
Nacra 16 Solo curved foils1.0521 713
Nacra 16 Double curved foils1.0272 696
Nacra 16 Solo1.0691 725
Nacra 16 Double1.0432 707
Nacra 17 C foils0.9952 675
Nacra 17 Olympic Class full foiler0.9772 662
Nacra 18m21.0901 739
Nacra F20 Carbon0.8812 597
Nacra 20 One Design0.9662 655
Nacra F181.0002 678
Nacra 4.51.2762 865
Nacra 4.5 Solo1.3281 900
Nacra 4601.2772 866
Nacra 460 Solo1.3111 889
Nacra 460 Solo Spinnaker1.2411 841
Nacra 460 Sport1.2142 823
Nacra 5.0 Cat Boat1.2591 854
Nacra 5.0 Double1.1652 790
Nacra 5.0 Double Spinnaker1.1242 762
Nacra 5.21.1212 760
Nacra 5.2 Spinnaker1.0772 730
Nacra 5.5 Raid1.0882 738
Nacra 5.5 Raid Spinnaker1.0372 703
Nacra 5.5 SL1.0672 723
Nacra 5.5 SL Spinnaker1.0242 694
Nacra 5.7 Race1.1222 761
Nacra 5.7 Race Spinnaker1.0832 734
Nacra 5.8 Spinnaker1.0192 691
Nacra 500 Solo1.2321 835
Nacra 500 Solo Spinnaker1.1661 791
Nacra 500 Double1.1712 794
Nacra 500 Sport Spinnaker1.1182 758
Nacra 570 (without Spinnaker)1.0932 741
Nacra 570 Sport Spinnaker1.0432 707
Nacra 580 (without Spinnaker)1.0622 720
Nacra 580 Sport Spinnaker1.0112 685
Nacra 6.0 Spinnaker0.9922 673
Nacra 6.0 Raid Spinnaker1.0062 682
Nacra 6.0 SE Spinnaker0.9792 664
Nacra Blast1.1812 801
Nacra F17 Sloop1.0452 709
Nacra F17 Solo1.0751 729
Nacra F20 Carbon FCS0.8602 583
Nacra Infusion F181.0002 678
Nacra Inter17 Xl Solo1.1791 799
Nacra Inter17 Xl Solo Spinnaker1.1081 751
Nacra Inter 18 F181.0002 678
Nacra Inter 20 F200.9702 658
New Cat 141.4042 952
New Cat 14 Spinnaker1.3482 914
New Cat F11.4272 968
New Cat F1 Spinnaker1.3692 928
New Cat F21.4702 997
New Cat Swing1.2312 835
New Marine 16 Swing Cat Boat1.2501 848
New Marine 16 Swing Double1.1922 808
Paper Tiger1.3281 900
Prindle 151.3221 896
Prindle 161.2432 843
Prindle 181.1492 779
Prindle 18-21.0912 740
Prindle 18-2 Spinnaker1.0472 710
Prindle 191.0652 722
Prindle 19 Spinnaker1.0112 685
Prindle 19 Pacer1.0822 734
Prindle 19 Pacer Spinnaker1.0172 690
Prindle Play Cat1.2961 879
Raptor F161.0262 696
RS Cat 16 Club1.3691 928
RS Cat 16 S1.3432 911
RS Cat 16 XL1.2812 869
S9 Stunt Solo1.1121 754
Shadow1.1231 761
Shadow X1.1131 755
Shearwater1.2572 852
Shearwater Spinnaker1.1892 806
Shockwave F181.0002 678
SL 15.5 - KL15.51.2302 834
SL 161.1412 774
SL 5.21.0882 738
Spitfire Solo (without jib)1.0851 736
Spitfire1.0422 705706
Spitfire S1.0382 704
Sprint 15 Cat Boat1.4041 927952
Sprint 15 DX1.2261 831
Sprint 15 GTI1.3972 947
Sprint 15 Sport Solo1.2741 904864
Stealth F16 Double1.0152 688
Stealth F16 Solo1.0211 692
Stingray 5.51.0302 698
Supercat 15 Solo1.2201 827
Supercat 15 Double1.1542 782
Supercat 171.0812 733
Supercat 191.0462 709
Supercat 200.9742 660
Supercat 20 Tall rib0.9402 637
Thundercat 181.0802 732
Tomahawk F200.9972 676
Topaz 14C1.4392 976
Topaz 14CX Spinnaker1.3802 936
Topaz 14Xtreme1.2831 870
Topaz 16C1.3142 891
Topaz 16CX1.2562 852
Topaz 16S1.3862 940
Topaz 16S Spinnaker1.3152 892
Topcat 4.5 Solo1.2331 836
Topcat Chico1.7552 1190
Topcat F11.3631 924
Topcat F21.2992 881
Topcat K1 Classic1.1562 784
Topcat K1 Streamcut1.0902 739
Topcat K1 Regatta Spinnaker1.0462 709
Topcat K2 Classic1.1842 803
Topcat K2 Streamcut Regatta1.1452 776
Topcat K2 Spinnaker1.1002 746
Topcat K2X Classic1.1782 799
Topcat K2X Streamcut1.1392 772
Topcat K2X Regatta Gennaker1.0912 740
Topcat K3 Classic1.2432 843
Topcat K3 Streamcut1.2032 816
Topcat K3 Regatta Spinnaker (no jib)1.1522 781
Topcat K3X Solo Streamcut Jib Spi1.0571 717
Topcat K3X Solo Regatta with Gennaker DS1.1161 757
Topcat K4X Classic Solo1.3371 906
Topcat K4X Classic with Jib1.3492 915
Topcat K4x Streamcut with Jib1.3022 883
Topcat K4X with Reacher1.2532 850
Topcat Spifire 2.31.1212 760
Topcat Spitfire 2.51.1162 757
Tornado0.9502 644
Tornado 24m2 Spinnaker0.9792 664
Tornado Classic1.0372 703
Tropic GTI1.1412 774
Tropic GTI Spinnaker1.0932 741
Unicorn1.1771 798
Ventilo 181.0462 709
Ventilo 18 HT1.0142 687
Ventilo 6090.9702 658
Ventilo M3 Cat Boat Spinnaker0.9882 670
Ventilo Quickie1.0281 697
Ventilo Zippo1.0702 725
Warp 181.1422 774
Warp 18 Spinnaker1.0942 742
Whisper0.9522 645
The following have been given individual SCHRS ratings
Cirrus Ocean BF (FRA 97492)1.0652 722
M20 Flying Vampire KS (GBR2)0.8372 567
M20 Flying Vampire WS (GBR1)0.8332 565
M3 Flyer LV (SUI 190)1.0031 680
Mattia F500 Double FS (FRA118) 1.0472 710
Mattia F500 Double FT (FRA104) 1.0472 710
Mattia F500 Solo FS (FRA118) 1.0831 734
Mattia F500 Solo FT (FRA104) 1.0831 734
Nacra 16 Sq Australia solo SD (505)1.1291 765
Nacra 16 Sq Australia solo spinnaker SD (505)1.0811 733
Proto EVO YV (FRA175)0.8952 607
Proto EVO YV (SUI 23)0.8982 609
Ventilo 609 (SUI )0.9392 637
Ventilo Pulso SC (SUI 118)0.9692 657
Ventilo Pulso VM (SUI 101)0.9842 667
Viper Foiling Proto (16)1.0112 685