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www.ByronSoftware.org.uk (070170 19268) - Sail Boat Racing 2008 / 2009
 
Please Note - Clubs may need to adjust a Portsmouth Number to suit local conditions, of course reasons should be declared.
Greater confidence is achieved in the calculated ByPN when several submissions have been received for a Class to confirm boat/rig  data,  so if P is blank or your boat's mast P dimension is different then sending your boats data would be appreciated, it could improve your boats handicap !
Keel:  f - fin, b - bulb, w - wing, 2k - bilge, 3k - trikeel, d - drop or swing foil, cb - center board, bb - bilge boards, p - drop or swing plate, L - long, 2h & 3h - multihull.
Engine/propeller: a blank entry indicates class base such as non, ob or ibf, non - no engine, ob - outboard, ibf - inboard + furling prop. ib2 - ib + 2 bladed prop. ib3 - ib + 3 bladed or more prop.
Var: variance to base calculation (ie 2 - reefing sail included, 4 - no spinnaker carried on board, ... )
uSA/D: indication of boat's power to weight ratio as per USA method .        
Knots: displacement hull speed.
P:  Mainsail mast band measurement, to indicate which rig values have been employed (in either metres or feet).
 
ByPN Class Keel Var uSA/D Knots P:
662 Farrier F-32 Tri. 3h ob 49.07 7.46
862 Ben 25 OD b ob 45.34 6.3 32.28
572 Farr 36 OD b ibf 42.99 7.67 49.9
913 Melges 24 OD f ob 41.87 6.29
843 Corsair F-24 MkIl Tri. 3h ob 41.16 6.51
743 Corsair F-31 Tri. 3h ob 39.02 7.34
942 Tempest (International) b Non 38.98 5.99 25
763 Dragonfly 920 Tri. 3h ob 37.68 7.17
810 Corsair F-28 Tri. 3h 36.87 6.87
697 J 125 w ibf 2 34.44 8.1 14.17
832 Dragonfly 800 Tri. 3h 33.47 6.73
847 B 32 f ob 32.81 7.03 39.5
864 B 32 f ib2 32.81 7.03 39.5
845 Reflex 28 b ob 32.28 6.67 9.85
753 Dragonfly 1000 Tri. 3h 32.27 7.36
752 Corsair F-31R Tri. 3h ob 31.94 7.34
699 Corel 45 OD f ib2 2 31.79 8.79 61.7
867 Bravura 29 SD f 31.48 6.81 41.6
892 Ben Figaro f ib2 31.45 7.04
861 Dufour 34 Trophy f ib2 31.29 7.15
798 Mumm 30 b ibf 30.18 7.11 12.36
1214 Silhouette II 2k ob 30.03 5.01
925 Antrim 27 f ob 29.76 6.52 33.7
918 Ben First Class 8 f ob 29.75 6.47 32.97
927 Hunter 707 b ob 29.74 6.32 28.87
887 Projection 920 f ibf 29.49 7.02
726 Concordia 47 f ibf 2 29.43 8.55 61.3
863 Jen Selection 37 f ibf 2 29.08 7.24 13.6
830 Cork 1720 f ob 28.59 6.5 32.5
1007 Hunter F1 f ob 28.26 6.03 27.3
929 Dufour 304 Trophy f ib2 28.20 6.78
947 Gibsea 304 f ib2 2 28.20 6.78
904 Projection 762 b ob 28.19 6.39
876 Dehler 36 f ibf 6 28.14 7.65
1154 Seafarer 575 f ob 6 28.00 5.19
1203 Sandpiper 565 p ob 6 28.00 5.19
1191 SailFish 18 p ob 2 27.84 5.19 19.5
852 J 92 b ibf 2 27.83 6.8 11.58
1023 Reve De Mer 23 f ob 27.78 5.61
930 Hunter HB 31 f ibf 27.76 6.51
956 Antrim 27 f ib2 27.67 6.52 33.7
793 Ben First 407 b ib2 2 27.50 7.91
839 Ben First Class 10 f ibf 27.49 7.35
986 B 25 d ob 27.42 6.43 28
872 J 35 b ibf 2 27.11 7.26 12.35
796 ILC 40 f ib2 2 27.04 8.05 55.5
1133 Copland Foxcub f ob 2 26.78 5.44
1007 Evolution 25 f ibf 2 26.72 6.33
1014 Robber Mk III E f ob 2 26.63 5.94
878 J 80 b ob 26.59 6.29 30
777 J 44 b ibf 2 26.42 8.46 16.29
962 Jen Sun Dream 28 f ibf 26.36 6.64 30.19
857 Feeling 1090 f ib2 26.34 7.98
936 J 24 OD b ob 26.26 6.08 8.54
830 Morgan 38 w ib2 26.21 7.63
909 Rondo 33.2 f ib2 26.18 7.19
1008 Macgregor 26 p ob 6 26.18 6.43
818 Prima 38 f ibf 26.11 7.88
980 Laser 28 f ibf 26.03 6.51 33.1
1038 Mischief 24 f ob 25.97 5.87 24.67
887 Azzura 310 f 25.96 6.78 38.7
768 Sinergia 40 w ibf 2 25.90 7.86 54.8
912 Hustler 32 f ibf 25.77 6.7 12.19
996 Bolero 25 f ob 25.77 5.98
1011 Ben First 235 b ob 2 25.70 6.04 26.6
869 X-99 b ibf 25.68 7.08 23.08
978 Albin Express f ob 25.67 6.24 35.1
975 Hunter Formula 28 f ibf 25.64 6.31
1023 Unna 20 d ob 25.64 5.84
1048 Drascombe Lugger p ob 25.63 5.19
869 J 29 b ibf 25.58 6.62 11.83
804 Aerodyne 38 f 25.33 7.84 51.7
1051 Micro 18 b ob 25.30 5.69
1089 Dehler 22 d ob 25.26 5.99
1057 Drascombe Coaster p ob 25.24 5.69
891 MG 335 f ibf 25.23 7.03 12.5
979 Dehler 31 f ib2 2 25.22 6.9
922 Ben First 300 Spirit f ibf 25.15 7.27
1086 Express 27 f ob 25.09 6.43 28.5
1130 Manta 19 p ob 25.07 5.31
1053 Listang 25 f ob 2 25.00 5.85
827 Ben First Class Europe f ibf 24.99
964 Achilles 9M f ibf 24.90 6.76 31
1209 Vivacity 21/650 2k ob 6 24.87 5.88
1102 Swift 18 d ob 0 24.85 5.41
811 J 120 w ibf 2 24.83 8.08 14.15
860 Bull 7000 d ob 24.73 6.56
1111 Jen Sun Way 21 p ob 24.70 5.66
1067 Ben First 24 f ib3 2 24.69 6.08 26.6
918 DB 2 f ibf 24.65 6.9 43.3
1072 J 22 f ob 24.57 5.84 26
808 J 109 b ibf 24.47 7.34 13.1
904 Ben First 310 f ibf 24.45 7.1 11.46
1073 Sonar 23 f ob 24.44 5.86 27.5
1069 Parker 21 f ob 24.39 5.8
972 Malbec 240 b ob 24.37 6.15 9.2
848 Ben First 42 f ib2 2 24.24 8.04 46.6
905 MG 346 f ibf 24.22 6.97
896 Feeling 356 f ib2 24.20 7.24
925 Dehler 33 Cruising f ib2 2 24.16 7.28
1014 Etap 22i b ob 24.03 5.64 24.7
987 Delphia 29 Deep Fin f ib2 2 24.01 6.72
1015 Dufour 30 Classic f ib3 24.01 6.82
956 Hunter Impala f ob 23.98 6.44 37.42
1014 Gib Sea 77 p ib2 23.97 6.38
1023 Gibsea 264 p ib2 6 23.97 6.73
1024 Gibsea 242 f ob 23.97 6.09
940 Jouet 920 f ibf 2 23.95 7.56 8.7
1037 Etap 21i b ob 23.95 5.99 26.74
911 Elan 36 f ibf 23.94 7.42
1050 Ben First 210 Spirit b ob 2 23.93 5.94 27.03
991 Feeling 286 f ibf 2 23.88 6.48
1019 Timpenny 670 d ob 23.86 6.01
961 Feeling 326 f ib2 2 23.80 6.98
1090 Hawk 20 d ob 23.79 5.52
906 Elan 40 f ibf 2 23.56 7.85 14.88
1035 Colgate 26 OD f ob 23.56 5.99 29.7
1027 Limbo 6.6 d ob 23.53 5.52 27
799 Ben 50 Deep Keel f ib3 2 23.51 9.02 15.51
1054 Seal 22 d ob 23.45 5.69 28.25
1010 Trapper TS 240 d ob 23.38 5.89 26.5
978 Prospect 900 f ib2 2 23.37 6.36
1073 Prospect 900 3k ibf 2 23.37 6.36
971 Jen Arcadia f ibf 2 23.34 7.1 32.25
868 IMX 38 DD f ibf 23.31 7.48
1087 Matilda d ob 23.30 5.41
971 Hanse 301 Deep Keel f ibf 2 23.27 6.79 11.34
1198 Lysander 17 2k ob 23.21 5.19
927 Sweden Yachts 340 f ib2 23.20 7.07
782 Reflex 38 b ibf 23.18 7.88 14.46
1025 Ben First 26 f ibf 2 23.14 6.4
917 Ben First 317 f ibf 23.12 7.19 35.43
847 C&C 121 f ibf 23.11 7.98 51
871 C&C 110 f ibf 23.11 7.52 45
881 Bavaria 42 f ibf 2 23.11 8.1 14.85
960 Bavaria 32 f ibf 2 23.09 7.08 11.15
865 Ben First 36.7 f ibf 23.08 7.37 13.86
985 Ben First 28 f ib2 23.07 6.6 9
830 Ben 50 Shoal Keel f ibf 2 23.03 9.02 15.51
883 Etap 39s f ib2 23.03 7.75
1065 Ben First 21 b ob 2 22.98 5.94 27.03
968 Ben First 337 f ib2 2 22.93 7.15
954 Ben 310 f ib2 2 22.92 7.17 37.86
922 Contention 30 f ibf 22.88 7.17 37
895 Sovereign 400 f ib2 22.87 7.69
875 Jen Sun Odyssey 40 f ib2 22.86 7.73
1071 Jen Sun Fast 20 p ob 22.85 5.83
914 Soling f ob 22.83 5.81 27.9
951 Feeling 850 f ibf 22.82 6.61
936 Westerly Ocean 33 f ibf 22.81 7.12
945 Jen Sunrise 34 f ib2 2 22.79 7.09 38
1079 Achilles 24 f ob 22.76 5.99 22.25
1109 Bluenose 24 f ob 22.76 5.34 26.3
1170 Achilles 24 3k ob 22.76 5.99 22.25
1038 Hunter Sonata f ob 22.75 6.17 26.3
808 J 133 w ibf 2 22.73 8.28 16.53
892 X-362 Sport f ibf 22.73 7.39
910 Elan 38 f ib2 22.64 7.58
948 Bavaria 35 f ib2 2 22.63 7.26
1152 Archambault A 35 f ibf 22.61 13.73
980 Bavaria 30 f ib2 22.59 6.69 35.7
981 Feeling 326DI p ibf 0 22.55 6.93 10.7
991 Elan 295 f ib2 22.54 6.91
982 Dufour 284 Trophy f ib2 22.52 6.61
1002 Gibsea 284 f ib2 2 22.52 6.61
898 J 105 w ibf 2 22.49 7.4 12.65
852 X-332 b ibf 22.47 7.21 43.1
940 Islander 44 f ib3 2 22.46 7.69 42.5
902 Elan 333 f ibf 22.45 7.29 12.29
1052 Jen Sun 2000 Basic cb ob 2 22.38 6.04 8
920 Parker 325 f ib2 22.37 7.17
1231 Alacrity 18 2k ob 22.36 5.52 20
979 Etap 28i b ib2 22.35 6.53
1029 Etap 20 b ob 22.35 5.52
1031 Ben First 25 d ibf 2 22.34 6.18 26.5
1013 Hanse 301 S.Keel f ibf 2 22.32 6.79 11.34
939 Ood 34 b ibf 22.31 7.02 11
1056 Hunter Sonata LK p ob 22.31 6.17 26.3
1234 Silhouette III /IV 2k ob 22.30 5.01
1087 Albin Viggen L 2 22.27 5.94
987 Seal 26 d ibf 22.22 6.54
987 Super Seal 26 d ibf 22.22 6.54
1023 Hustler 25.5 f ibf 22.22 6.17 35
1023 Gibsea 262 d ib2 2 22.20 6.28 9.6
933 Contention 30 7/8 rig f ibf 22.19 7.17 38.25
905 Centurion 37 f ib2 22.16 7.56
1026 Delphia 29 Std Fin f ib2 2 22.16 6.72
1043 Delphia 29 Shoal Draft f ib2 2 22.16 6.72
935 Mustang 30 Mk2 b ibf 22.15 6.46 10.2
958 Etap 32i Cruising w ib2 22.15 6.87
1002 Westerly Tempest f ibf 2 22.15 6.63
1110 Pandora 22 f ob 0 22.15 5.8 20.67
914 Bavaria 38 f ib2 2 22.09 7.62 44.45
1067 Aquarius 23 f ob 22.07 6.16 23.25
1018 Kelt 850 d ib2 2 22.06 6.67
867 Bavaria 44 f ibf 22.05 8.21 14.85
958 Ben Oceanis Clipper f ib2 22.04 7.19
902 Bavaria 38 f ibf 2 22.03 7.77 13.55
1120 Pandora International f ob 2 22.01 5.8 20.67
932 Ben First 325 f ibf 21.95 7.18
985 Ben Oceanis Clipper f ib2 2 21.95 7.26
920 Gladiator 32 f ibf 21.93 7 39.18
1223 Clovelly Picarooner d ib3 4 21.92 5.28
915 Ben First 35 f ib2 21.91 7.26 42.7
942 DB 1 f ibf 21.91 6.92 41.1
879 Sigma 38 f ibf 21.89 7.58 14.48
966 Elan 34 f ib2 21.89 6.97
943 Elan 36 f ib2 21.87 7.42
1036 Seamaster 925 f ib2 2 21.86 6.39
933 X-102 f 21.84 6.78 42.3
1007 Etap 21i deep keel b ob 21.76 5.99 8.15
894 Dufour 41 Classic f ib2 21.74 7.66
941 Dehler 34 f ibf 21.74 7 38.7
914 Sigma 35 f ibf 0 21.73 7.15 12.95
1055 Shipman 28 f ib3 2 21.73 6.47 29.5
838 J 42 b ibf 2 21.72 7.84 14.18
852 J 42 Shoal Keel b ibf 2 21.72 7.84 14.18
892 Feeling 386 f ib2 21.68 7.68
922 Tartan 34 f ibf 21.68 7.19 39.2
976 Legend 240 p ob 21.67 6.3
996 Hanse 301 f ibf 3 21.66 6.84 11.34
870 Catalina 42 f ibf 21.65 8.04 14.25
893 Feeling 39 f ib2 21.65 7.68
1159 Leisure 17 f ob 21.64 5.01
935 Etap 34s f ib2 21.63 7.31
1020 Westerly GK 29 f ib2 2 21.63 6.78 31.67
1052 Freedom 21 w ob 21.63 5.84
913 Dufour 39 CC f ibf 2 21.62 7.61
922 Dufour 38 Classic f ib2 2 21.62 7.61
924 Jen Sun Fast 32 f ibf 21.55 6.89 37.4
1055 Ecume de Mer f ib2 21.52 5.85
984 Jen Sun Odyssey 32.2 f ib2 21.49 6.95
953 Westerly Storm f ibf 21.47 6.97 35.8
1062 Andrews 26 f ib2 21.47 6.07 30.4
926 Dufour 36 Classic w ib2 2 21.46 7.35
1039 Ben First 285 f ib3 2 21.39 6.77 31.3
959 Dufour 35 Classic f ib2 2 21.37 7.07
1067 Sadler 26 f ibf 21.37 6.07 25.4
1096 Sadler 32 2k ib2 21.37 6.56 22
974 Farr 31 f ib2 2 21.36 7.34 38.8
979 Feeling 306 f ib2 2 21.36 7.28
1043 Romily p ob 21.36 6.03
1142 Westerly Jouster f ob 0 21.32 5.74 6.2
961 Ben First 305 f ibf 21.31 6.94 33.6
1061 Caravella 22 f ob 21.28 5.69
1065 MG Spring 25 w ib2 2 21.28 6.39 32
918 Sweden Yachts 370 f ib2 21.23 7.28
1063 Trapper 500 f ib2 21.22 6.31 28.5
913 Bavaria 36 f ibf 21.21 7.44 12.2
875 Dehler 41CR f ibf 2 21.19 8.07 15.9
1037 Jen Sun Odyssey 31 f ib3 2 21.17 6.73 10.21
1082 Etap 21i shallow keel b ob 2 21.17 5.99 8.15
887 J 32 b ibf 2 21.15 7.23 12.73
1007 Ben First 260 Spirit f ibf 2 21.14 6.58 30.51
1058 Sadler 25 f ibf 21.13 5.87 25
1108 Squib f ob 21.12 5.57
1062 Moody 31 2k ib2 21.10 6.76
1150 Hunter Tracer d ob 21.08 5.26
987 Gibsea 96 f ib2 2 21.07 7 36
976 Scampi 30 f ibf 21.05 6.3 41.5
1009 Achilles 840 f ib2 21.05 6.6
1113 Achilles 840 3k ib2 2 21.05 6.6
947 Jen Sun Odyssey 34.2 f ib2 21.04 7.15
950 Ben Oceanis Clipper f ib2 2 21.04 7.47
996 Moody 31 f ib2 21.04 6.75 33.5
1146 Hunter 19 f ob 21.04 5.57 18.3
1018 Roxane 29.5 d ib2 21.02 6.91
890 Sweden Yachts 390 f ib2 21.01 7.52
1041 Europa 680 (TS230) d ob 20.99 6.09 8.15
979 Alerion 28-2 b 20.96 6.38 33
1028 Alerion 28 f 20.96 6.38 33
957 Ben Oceanis 350 f ib2 20.91 7.32 35.76
958 Aphrodite 101 f 20.90 6.89 39.36
1058 Jouet 760 l ibf 4 20.89 6.21 27.17
997 Ballad 30 f ibf 20.88 6.37 32
958 Bianca 101 f 20.81 6.89 39.4
927 Sigma 33 f ibf 20.80 6.87 45
1013 Ufo 27 f ibf 20.77 6.38 30.6
1063 Anderson 22 d ob 20.77 5.88 26.3
981 Bavaria 31 f ib2 2 20.75 7
1079 Pegasus 600 f ob 20.74 5.52
1014 Westerly GK 24 f ob 20.73 6.17 9.45
1017 Ben Oceanis Clipper f ibf 2 20.73 6.47
1030 Westerly GK 24 f ibf 20.73 6.17 9.45
971 Alden One Design f 20.68 6.56 38.6
978 Hanse 292 f ib2 20.68 6.84
1027 Sadler 32 f ib2 20.68 6.56 22
1083 Copland Foxhound f ibf 20.67 6.14
1072 Moody 27 f ib2 2 20.60 6.27 28
1150 Moody 27 2k ib2 2 20.60 6.27 28
954 MG C27 f ibf 20.59 6.5
1051 Verl 27 f ib2 2 20.55 6.22
935 Dufour 36 CC w ib2 2 20.54 7.35
1169 Mystic 21 2k ob 20.54 5.23
1132 Sea Wolf 26 2k ibf 2 20.53 6.07 10
983 Westerly GK 29 tall rig f ibf 20.52 6.78 34.25
1010 Jen Sun Odyssey 281 f ib2 20.51 6.46
1042 Parker 275 f ib2 2 20.49 6.63 31.3
1064 Folkboat Nordic L ob 20.49 5.93 28.6
1105 Arden Clansman f ib2 20.47 5.76
1075 Etap 24i shallow keel f ibf 20.46 6.29 9.26
961 Hanse 331 f ib2 20.44 6.95
1013 Jen Sun Odyssey 292 f ib2 20.44 6.7
1027 Dehler 28 f ib2 20.44 6.94
987 Ben Oceanis 320 f ib2 20.43 7.05
1022 Ben First 211 f ob 2 20.39 5.94 8.24
1111 First 18 d ob 20.39 5.52
1199 Sandhopper 3k Non 20.35 5.57
960 Bavaria 36 f ib2 2 20.34 7.3 40.03
882 Dehler 41C f ib2 20.32 8.07
1008 Hunter Delta d ob 20.30 6.03 28.87
1073 Jen Sun Odyssey 30 f ib3 2 20.30 6.55 30
945 Westerly GK 33 f ib2 20.28 7.12 45
917 Legend 380 f ib2 20.27 7.58
962 Vision 32 f ib2 20.27 7.07
1002 Freedom 28 w ib2 20.27 6.67
1063 Jen Sun 2000 Comfort cb ob 2 20.24 6.04 8
1016 Wes