Software and Services Byron Sail Boat Racing 2016 / 2017 Please Note: Class portsmouth handicap Numbers are quoted below for an upper quartile version rather than the Class median version. In general terms that means, handicaps refer to the larger polyester type headsail and full sized spinnaker version rather than the often more popular vessels with cruising or builder supplied sails. Clubs may need to adjust a 'Byron Class Number' to suit local conditions, of course reasons should be declared (ie tidal/course skew factor). A vessel specific ByPN handicap/rating calculation can be provided. Class: OD :One Design, DD :Deep Drafted, SD :Shoal Drafted, TM :Tall Mast, GC :Gaff Cutter. Knots: light displacement hull speed. Keel: f :fin, ff :flared fin, fb :fin ballasted(lowCofG), b :bulb, w :wing, 2k :bilge, 3k :trikeel, d :drop keel, d. :drop keel fixed down when racing (also fbd. etc), s :swing keel, bb :bilge boards, L :long, 2h 3h :multihull (refer to Boat Keels for more detail). Engine/propeller: non :no engine, ob :outboard, obf :outboard within hull and fixed down, ibf :inboard +furling prop. ib2 :ib +2 fixed bladed prop. ib3 :ib +3 fixed bladed or more. Furl: rr :roller reefing/furling sail included. uSAD: indication of 'on the water' power to weight ratio upwind. dSAD: indication of 'on the water' power to weight ratio downwind. We do not have financial help from the RYA, so if you use our 'contribution to the sport' or just agree with our attempts to promote 'fair play' then please click on the PayPal Donate link/button to make a payment. Just a few £s a year for each Class/ByCN used would help us to maintain and continue with that Class listing. PayPal is very secure, you don't need an account just a credit/debit card, if you have any doubts then refer to the PayPal site, but then we hope you will be convinced and return to click on the above Donate link/Button. ByCN Class Knots Keel Eng Furl uSAD dSAD 957 A Le Comte 35 6.9 f ibf rr 21.4 37.5 912 Abbott 33 6.95 f ibf 23.7 40.0 1065 Achilles 24 5.99 ff ob 19.3 31.7 1119 Achilles 24 5.99 3kf ob 19.9 31.9 970 Achilles 840 6.6 ff ib2 21.9 39.4 1106 Achilles 840 6.6 3kf ib2 16.7 30.8 964 Achilles 9M 6.78 ff ibf 18.8 35.8 1027 Aegean 234 5.87 f ob 21.3 34.1 760 Aerodyne 38 7.85 fb ibf rr 25.4 60.6 1215 Alacrity 18 Mk1 5.52 2k ob 18.4 32.0 1065 Alberg 30 6.24 L ib2 rr 18.2 29.8 1012 Alberg 35 6.66 L ib2 rr 19.2 32.8 965 Alberg 37 6.9 L ib2 rr 19.3 32.5 1026 Albin 7.9 5.99 f ibf 19.3 35.5 1039 Albin Accent 26 6.1 f ib2 18.2 32.8 970 Albin Cumulus 28 6.33 ff ibf 18.8 32.6 955 Albin Delta 31 6.69 f ibf 19.8 32.9 963 Albin Express 6.24 f ob 24.3 44.4 874 Albin Nimbus 7.83 f ibf rr 22.3 40.2 930 Albin Nova 6.91 f ibf 22.8 37.7 913 Albin Stratus 6.99 f ibf 21.1 35.2 1095 Albin Vega 27 6.43 L ibf rr 18.0 29.7 1067 Albin Viggen 23 5.95 ff ob 19.9 37.7 839 Alden 44 TM 7.92 fs ib2 rr 22.4 41.4 960 Alerion 28 Mk2 6.38 b ibf 20.4 38.0 935 Alerion 38 OD 7.34 f ibf 19.9 39.7 997 Allied Mistress 7.29 f ibf 15.9 28.1 1005 Allied Princess 7.03 L ibf 17.0 29.1 1056 Allied Seawind 32 mk2 6.77 L ib2 15.6 27.2 911 Allied XL2 7.44 f ibf 20.9 36.7 1011 Allmand 31 7.04 f ibf 17.4 30.1 945 Aloha 10.4 7.17 f ibf 18.8 33.8 1010 Aloha 28 6.65 f ibf 20.3 36.9 971 Aloha 32 6.7 f ibf 22.0 41.0 1084 AMF 2100 5.62 d ob 17.3 36.2 1063 Anderson 22 5.88 fbd ob 18.6 33.2 939 Andrews 26 6.07 ff ibf 25.2 42.8 796 Antrim 27 6.53 fbd ob rr 34.5 84.6 901 Aphrodite 101 6.89 f ibf rr 23.3 39.8 1064 Aquarius 23 TM 6.15 f ob 23.7 40.3 827 Archambault A31 7.28 f ibf rr 26.6 44.2 826 Archambault A35 7.48 f ibf rr 26.1 54.6 792 Arcona 400 DD 7.86 ff ibf rr 25.0 41.8 783 Athena 38 8.31 2h 2ib2 rr 26.9 46.5 1064 Audacity 21 5.76 s ob 12.3 23.4 896 Avance 36 7.28 f ibf 20.9 34.6 786 Azzura 310 6.78 fb ibf rr 31.7 89.8 1007 B-25 6.43 d ob 23.0 40.5 815 B-32 7.03 f ob 31.5 62.1 1006 Baba 30 6.63 L ib2 19.0 48.3 763 Bahia 46 9.09 2h 2ib2 rr 26.9 46.6 1030 Balboa 26 6.11 s ob rr 23.3 42.2 991 Ballad 30 6.37 f ibf 18.9 34.3 899 Baltic 35 7.18 f ibf 21.6 38.4 869 Baltic 37 DD 7.18 f ibf rr 21.9 39.8 830 Baltic 42 7.82 f ibf rr 21.9 39.6 795 Banner 41 7.68 f ibf 27.0 43.1 945 Bavaria 30 6.97 ff ibf 21.1 34.7 940 Bavaria 31 7 fb ibf rr 18.7 31.3 922 Bavaria 32 7.08 fb ibf rr 21.8 36.9 926 Bavaria 34 7.06 ff ibf rr 21.4 36.0 849 Bavaria 35 7.26 ff ibf rr 26.3 42.6 828 Bavaria 35 Match 7.54 ff ibf rr 24.9 40.4 922 Bavaria 350 7.33 ff ibf rr 20.0 33.4 887 Bavaria 36 7.44 fb ibf rr 20.1 34.1 877 Bavaria 37 7.44 fb ibf rr 20.7 35.1 855 Bavaria 38 DD Cruiser 7.64 fb ibf rr 20.3 34.7 807 Bavaria 38 Match 7.77 fb ibf rr 23.7 40.9 856 Bavaria 39 DD Cruiser 7.95 f ibf 20.1 34.6 850 Bavaria 40 8.04 fb ibf 20.0 34.0 853 Bavaria 42 8.1 fb ibf rr 21.4 39.9 787 Bavaria 42 Match 8.2 fb ibf rr 24.5 43.0 808 Bavaria 44 DD 8.21 ff ibf rr 23.5 39.5 982 Bavaria 960 6.86 f ibf 17.7 29.7 783 Belize 43 8.41 2h 2ib2 rr 25.8 46.3 869 Ben 25 OD 6.31 b ob 29.4 49.3 921 Ben 310 7.18 f ibf 22.5 36.7 804 Ben 50 DD 9.03 ff ibf rr 22.9 41.4 801 Ben 57 DD 9.4 ff ibf 21.4 36.6 872 Ben Figaro 7.04 ff ibf rr 27.6 48.7 1101 Ben First 18 5.52 s ob 22.1 35.4 995 Ben First 21.7 5.95 s ob rr 19.3 45.8 999 Ben First 210 5.95 s ob rr 22.0 40.4 1013 Ben First 211 5.95 s ob rr 19.2 36.7 979 Ben First 235 DD 6.04 f ob rr 22.4 35.0 1019 Ben First 24 6.07 s ibf 22.1 38.5 1018 Ben First 25 6.18 s ibf 20.8 39.4 1019 Ben First 26 6.4 f ibf 20.6 36.7 965 Ben First 260 Spirit 6.58 s ibf rr 23.0 37.9 1004 Ben First 27 6.25 f ibf rr 21.1 37.4 908 Ben First 27.7 6.99 b ibf 21.4 38.9 971 Ben First 28 6.6 f ibf 21.8 36.6 976 Ben First 285 6.77 ff ibf 19.9 37.0 982 Ben First 29 6.87 s ibf 20.4 35.6 1000 Ben First 29 SD 6.87 f ibf rr 20.6 37.1 898 Ben First 300 Spirit 7.27 ff ibf 22.5 43.5 961 Ben First 305 6.94 f ibf 20.1 34.8 905 Ben First 31.7 7.2 fb ibf rr 21.4 37.6 904 Ben First 310 7.1 ff ibf 21.7 39.7 936 Ben First 325 7.18 f ibf 20.6 34.3 925 Ben First 32S5 7.06 ff ibf rr 19.8 29.3 897 Ben First 33.7 SD 7.15 fb ibf 21.9 34.6 849 Ben First 34.7 7.17 fb ibf rr 23.4 40.0 927 Ben First 35 7.26 f ibf 18.6 32.6 830 Ben First 35 2009 7.41 fb ibf rr 22.6 43.9 821 Ben First 36.7 7.37 ff ibf 23.5 38.4 920 Ben First 375 7.5 f ibf 18.3 35.4 771 Ben First 40 7.93 bt ibf rr 24.8 35.8 796 Ben First 40.7 DD 7.92 f ibf rr 25.1 41.0 841 Ben First 42 8.04 f ibf rr 22.7 41.4 770 Ben First 45 8.32 bt ibf rr 22.1 51.2 775 Ben First 47.7 8.62 ff ibf rr 24.4 42.3 840 Ben First Class 10 7.35 f ibf 25.7 42.7 916 Ben First Class 8 6.47 s ob rr 24.9 45.9 804 Ben First Class Europe 7.69 ff ibf rr 30.4 43.3 947 Ben Idylle 11.50 7.38 f ibf 18.7 32.5 873 Ben Idylle 13.5 7.86 f ibf 20.0 35.8 998 Ben Oceanis 281 6.63 ff ibf 19.4 33.1 977 Ben Oceanis 300 6.83 w ibf 20.9 33.7 923 Ben Oceanis 311 7.19 ff ibf rr 23.3 38.4 971 Ben Oceanis 320 7.05 ff ibf 19.3 32.4 943 Ben Oceanis 321 7.26 b ibf rr 20.0 36.6 935 Ben Oceanis 350 7.32 ff ibf 19.9 34.4 919 Ben Oceanis 351 7.47 fb ibf 19.1 33.7 939 Ben Oceanis 36 7.48 w ibf 18.6 35.6 906 Ben Oceanis 361 7.47 fb ibf 20.2 37.6 906 Ben Oceanis 373 SD 7.68 b ibf rr 20.1 34.6 918 Ben Oceanis 381 7.68 fb ibf 18.5 32.4 875 Ben Oceanis 393 DD 7.87 fb ibf rr 19.1 33.2 879 Ben Oceanis 40 8.12 w ibf 17.9 30.3 821 Ben Oceanis 411 DD 8.05 ff ibf rr 24.2 38.1 914 Bianca 101 6.89 f ibf 24.0 40.8 921 Block Island 40 7.23 fs ib2 rr 17.9 31.9 1079 Bluenose 24 5.36 ft ob 27.0 39.9 997 Bolero 25 5.98 f ob 22.4 36.6 1024 Bombay 31 Clipper 6.77 ft ibf 17.8 29.9 741 Bravura 29 6.57 fb ibf rr 35.2 66.0 729 Brazapi 40 8.4 2h 2ibf rr 31.1 72.3 1098 Bridges Point 24 5.78 L ib2 18.6 27.8 1064 Bristol 26 6.26 f ob 19.5 33.9 1026 Bristol 27 5.97 L ib2 21.4 38.4 1023 Bristol 28 6.49 f ib2 17.6 31.5 1015 Bristol 29 6.37 f ibf 18.7 31.7 1010 Bristol 29.9 6.56 f ibf 18.1 31.6 1013 Bristol 30 6.38 f ibf 18.6 31.6 1041 Bristol 32 6.29 f ibf 18.0 31.3 982 Bristol 33 6.83 f ib2 17.3 29.8 980 Bristol 35 6.52 f ibf 19.1 33.4 959 Bristol 40 7.03 L ib2 rr 19.4 33.7 955 Broadblue 38 7.87 2h 2ibf rr 19.3 42.8 1144 Buccaneer 220 5.69 f ob rr 17.3 35.0 1083 Buccaneer 270 6.47 f ob 19.4 34.5 963 Buccaneer 295 6.63 f ibf 20.9 38.3 1005 Buccaneer 305 6.86 f ibf 19.8 37.2 879 Bull 7000 6.57 bd ob 25.7 73.0 830 C&C 110 7.52 f ibf rr 27.6 46.5 813 C&C 121 7.98 fb ibf rr 21.9 44.1 1068 C&C 24 5.92 f ob 21.7 40.8 1038 C&C 25 6.01 f ob 22.3 41.1 1040 C&C 26 6.07 f ib2 21.3 38.8 998 C&C 27 6.41 f ibf 22.2 39.5 975 C&C 29 6.5 f ibf 21.7 39.8 968 C&C 30 6.67 f ibf 22.4 41.0 973 C&C 32 6.83 f ibf rr 21.4 38.2 939 C&C 33 6.89 f ibf 21.8 40.1 947 C&C 34 6.82 f ibf rr 21.6 39.4 905 C&C 35 7.03 f ibf rr 26.0 46.6 898 C&C 36 7.05 f ibf 22.8 41.5 868 C&C 37 7.19 f ibf 22.9 41.2 868 C&C 38 7.29 f ibf 21.0 41.5 870 C&C 39 7.6 f ibf 20.9 41.3 846 C&C 40 7.53 f ibf 22.9 41.1 819 C&C 41 7.56 f ibf 23.9 42.4 809 C&C 48 8.37 f ibf 23.8 42.0 1034 Cal 25 5.99 f ob 21.1 37.1 1042 Capri 26 6.42 f ib2 19.4 33.4 1056 Caravela 25 6.32 f ibf 17.8 34.1 987 Carter 30 6.77 f ibf rr 20.4 37.3 905 Carter 36 7.33 f ibf rr 21.7 40.5 887 Carter 37 7.14 f ibf rr 20.8 38.6 1044 Catalac 8M 6.77 2h ob 16.6 25.8 1110 Catalina 22 Mk2 5.89 f ob 21.7 37.3 1049 Catalina 26 6.42 f ibf 16.9 28.8 1040 Catalina 270 6.53 w ibf 17.7 29.3 1011 Catalina 28 mk2 6.54 ff ib2 17.3 30.1 971 Catalina 30 Mk3 6.7 w ibf rr 20.1 37.2 969 Catalina 320 7.09 ff ibf rr 16.2 34.5 917 Catalina 34 Mk2 7.32 w ibf 19.5 34.5 886 Catalina 36 Mk2 TM 7.37 f ibf 20.9 37.0 877 Catalina 380 7.63 w ib2 19.9 33.9 856 Catalina 400 7.92 f ibf 22.3 37.9 870 Catalina 42 8.04 f ibf 21.3 37.5 748 Catana 471 9.18 2h 2ibf rr 27.6 44.0 974 Centurion 32 6.57 f ibf 18.4 31.5 870 Centurion 37S 7.56 f ibf rr 24.0