Club Certificate2026
O.C.ESSEITA-1972S850
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles45.3°43.0°40.5°38.1°37.4°37.1°37.1°37.4°38.8°
Beat VMG2.483.564.374.784.925.005.055.074.96
52°3.875.416.366.756.917.027.107.197.14
60°4.145.696.556.977.177.317.427.557.54
75°4.345.876.677.207.587.807.988.228.33
90°4.215.916.727.197.768.258.589.109.45
110°4.316.067.027.688.158.619.0810.0310.94
120°4.175.926.957.788.539.149.7310.8611.89
135°3.705.316.507.298.169.2510.4912.3114.11
150°3.064.455.646.547.247.988.9711.8115.31
Run VMG2.653.864.885.676.286.917.7710.2313.26
Gybe Angles139.4°142.1°146.2°151.6°151.1°147.6°144.7°143.8°148.5°
APH ToD:541.0CDL: 8.174APH ToT: 1.1090CertNo:26/1
BOAT
ClassEsse 850DesignerFelciBuilderSchuchter Sport B.Age date01/2018Series date01/2004Offset fileS850.OD.OFFData fileI1972850
HULL
Length Overall8.500Maximum Beam2.190Draft2.005Displacement1,286DLR3.1095IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight460(declared)Minimum weight330 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail24.3725.02Headsail Luffed17.0017.00Headsail FlyingSymmetricAsymmetric69.5269.52 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail6.71Storm Jib5.07Heavy Weather Jib13.68
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting Moment 36.6 Stability Index 118.9
The owner and any other person in charge is responsible that boat is complying with her certificate in accordance with RRS 78.1 and ORC Rule 304.
ORC Ref  03190004BN7 Issued on 17/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
O.C.ESSEITA-1972S850
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1452.21011.2824.4753.6731.3720.0713.1710.0725.1
52°931.4665.4565.8533.2521.1513.1507.2500.7503.9
60°869.5632.3549.7516.7502.0492.5485.5477.0477.6
75°829.4612.8539.4499.9475.0461.8451.3438.1432.1
90°856.1608.7535.6500.9464.1436.6419.6395.7381.1
110°834.4594.2512.8469.0441.8417.9396.7359.0329.0
120°863.6608.3517.7462.9421.9394.0370.1331.6302.9
135°974.2677.6553.8494.0441.3389.1343.3292.4255.1
150°1178.3808.5638.8550.4497.0451.4401.4304.8235.2
Run VMG1360.6933.5737.6634.4573.4521.2463.5352.0271.6
Selected Courses
Windward / Leeward1406.4972.4781.0694.0652.3620.6588.3531.0498.3
All purpose1068.5749.2620.9562.2528.5502.5479.1441.9420.5
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward670.70.8946
All purpose541.01.1090
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance587.51.0213
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7687
Downwind "popa"0.9963
70% up, 30% down "Ilhabela"0.8253
30% up, 70% down "Ilhabela-inverso"0.9150
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Predominantly Upwind595.11.0083
Predominantly Downwind536.51.1184
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP558.61.0742 Predom. Rc High409.61.4649 5B SF Bay L/M724.00.8287 TriNum AP Low685.00.8759 Predom. Dn Low823.90.7283 5B SF Bay Med634.00.9464 TriNum AP Med541.01.1091 Predom. Dn L/M613.00.9788 5B SF Bay M/H571.01.0508 TriNum AP High471.01.2739 Predom. Dn Med522.81.1476 5B SF Bay High525.61.1416 TriNum W/L Low921.00.6515 Predom. Dn M/H444.11.3509 5B AP Low760.70.7887 TriNum W/L Med669.00.8968 Predom. Dn High386.51.5525 5B AP L/M605.40.9910 TriNum W/L Hig574.91.0437 ChiMac Up Low742.70.8078 5B AP Med533.31.1251 Predom. Upwind619.00.9693 ChiMac Up Med673.70.8906 5B AP M/H480.91.2475 Predom. Reaching532.01.1278 ChiMac Up High590.91.0153 5B AP High444.61.3494 Predom. Downwind557.61.0761 ChiMac Off Low711.70.8431 5B W/L Low1033.00.5808 Predom. Up Low840.70.7137 ChiMac Off Med626.30.9580 5B W/L L/M759.50.7900 Predom. Up L/M645.20.9299 ChiMac Off High518.51.1571 5B W/L Med659.20.9102 Predom. Up Med580.01.0345 ChiMac AP Low724.40.8282 5B W/L M/H589.51.0178 Predom. Up M/H540.71.1096 ChiMac AP Med648.10.9257 5B W/L High535.21.1210 Predom. Up High519.61.1547 ChiMac AP High553.61.0839 W/L 60-40 Low1041.40.5762 Predom. Rc Low742.20.8084 BayMac Cove Island831.90.7212 W/L 60-40 L/M770.20.7790 Predom. Rc L/M571.31.0502 BayMac Shore826.20.7262 W/L 60-40 Med675.20.8886 Predom. Rc Med501.61.1962 Harvest Moon457.91.3102 W/L 60-40 M/H614.70.9761 Predom. Rc M/H444.51.3499 5B SF Bay Low869.70.6899 W/L 60-40 High570.81.0511      SA/DSPL Up34.96SA/DSPL Dn79.34
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance587.51.0213
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance587.51.0213
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance587.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating587.51.0213
FinRating, kevyt tuuli1018.30.9820
FinRating, kova tuuli445.11.1234
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0213
Triple Number Coastal/Long Distance Low0.8759
Triple Number Coastal/Long Distance Medium1.1092
Triple Number Coastal/Long Distance High1.2739
Triple Number Windward/Leeward Low0.6844
Triple Number Windward/Leeward Medium0.8968
Triple Number Windward/Leeward High1.0437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
For information
General Purpose Handicap (GPH)605.3
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance587.51.0213
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Saronikos S All_Purpose606.30.9896
Saronikos S Upwind705.90.8500
Saronikos S Downwind485.11.2369
Saronikos N All_Purpose606.30.9896
Saronikos N Upwind739.10.8118
Saronikos N Downwind553.51.0840
Saronikos SW All_Purpose607.40.9879
Saronikos SW Upwind720.80.8324
Saronikos SW Downwind498.31.2041
Saronikos NE All_Purpose671.80.8932
Saronikos NE Upwind694.30.8642
Saronikos NE Downwind621.80.9649
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose558.61.0742
5-Band All-Purpose Low829.20.7236
5-Band All-Purpose L/M627.90.9556
5-Band All-Purpose Med550.61.0896
5-Band All-Purpose M/H492.11.2193
5-Band All-Purpose High453.01.3245
Single Number Predominant Upwind593.11.0116
Single Number Predominant Reaching513.51.1685
Single Number Predominant Downwind538.21.1148
5-Band 50-50 Windward/Leeward Low1033.00.5808
5-Band 50-50 Windward/Leeward L/M759.50.7900
5-Band 50-50 Windward/Leeward Med659.20.9102
5-Band 50-50 Windward/Leeward M/H589.51.0178
5-Band 50-50 Windward/Leeward High535.21.1210
5-Band 60-40 Windward/Leeward Low1041.40.5762
5-Band 60-40 Windward/Leeward L/M770.20.7790
5-Band 60-40 Windward/Leeward Med675.20.8886
5-Band 60-40 Windward/Leeward M/H614.70.9761
5-Band 60-40 Windward/Leeward High570.81.0511
Triple Number 50-50 Windward/Leeward Low921.00.6515
Triple Number 50-50 Windward/Leeward Med669.10.8967
Triple Number 50-50 Windward/Leeward High574.91.0437
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward687.40.8729
Triple Number 60-40 Windward/Leeward Low929.60.6454
Triple Number 60-40 Windward/Leeward Med684.00.8772
Triple Number 60-40 Windward/Leeward High602.60.9956
Triple Number All-Purpose Low745.70.8046
Triple Number All-Purpose Med559.21.0730
Triple Number All-Purpose High481.31.2466
Triple Number Predominant Upwind Low765.50.7838
Triple Number Predominant Upwind Med588.51.0195
Triple Number Predominant Upwind High544.71.1016
Triple Number Predominant Reaching Low675.60.8881
Triple Number Predominant Reaching Med520.21.1533
Triple Number Predominant Reaching High425.41.4106
Triple Number Predominant Downwind Low737.40.8137
Triple Number Predominant Downwind Med533.91.1238
Triple Number Predominant Downwind High414.81.4465
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance587.51.0213
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance587.51.0213
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low685.0
Triple Number Coastal/Long Distance Medium540.9
Triple Number Coastal/Long Distance High471.0
Triple Number Windward/Leeward Low876.7
Triple Number Windward/Leeward Medium669.0
Triple Number Windward/Leeward High574.9
Predominantly Upwind595.1
Predominantly Downwind536.5
Predominantly Reaching517.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance587.51.0213
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8759
Triple Number Coastal/Long Distance Medium1.1092
Triple Number Coastal/Long Distance High1.2739
Triple Number Windward/Leeward Low0.6844
Triple Number Windward/Leeward Medium0.8968
Triple Number Windward/Leeward High1.0437
Coastal/Long Distance1.0213
Predominantly Upwind1.0083
Predominantly Downwind1.1184
For information
General Purpose Handicap (GPH)605.3
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.1090
Distanseseilas Trippeltall svak vind0.8759
Distanseseilas Trippeltall mellomvind1.1092
Distanseseilas Trippeltall sterk vind1.2739
Pølsebane Trippeltall svak vind0.6844
Pølsebane Trippeltall mellomvind0.8968
Pølsebane Trippeltall sterk vind1.0437
Motvind Singeltall1.0083
Medvind Singeltall1.1184
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Coastal/Long Distance587.51.0213
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind595.11.0083
Predominantly Downwind536.51.1184
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore508.11.1808
Cape Doctor Coastal426.91.4054
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8759
Triple Number Coastal/Long Distance Medium1.1092
Triple Number Coastal/Long Distance High1.2739
Triple Number Windward/Leeward Low0.6844
Triple Number Windward/Leeward Medium0.8968
Triple Number Windward/Leeward High1.0437
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8759
Triple Number Coastal/Long Distance Medium1.1092
Triple Number Coastal/Long Distance High1.2739
Triple Number Windward/Leeward Low0.6844
Triple Number Windward/Leeward Medium0.8968
Triple Number Windward/Leeward High1.0437
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance587.51.0213
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Predominantly Upwind595.11.0083
Predominantly Downwind536.51.1184
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance587.51.0213
Triple Number Coastal/Long Distance Low685.00.8759
Triple Number Coastal/Long Distance Medium540.91.1092
Triple Number Coastal/Long Distance High471.01.2739
Triple Number Windward/Leeward Low876.70.6844
Triple Number Windward/Leeward Medium669.00.8968
Triple Number Windward/Leeward High574.91.0437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1401.8968.5736.9628.8564.9522.6483.2418.0394.5
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP558.61.0742 Predom. Dn High386.51.5525 5B AP M/H480.91.2475 TriNum AP Low685.00.8759 Predom. Rc Low742.20.8084 5B AP High444.61.3494 TriNum AP Med541.01.1091 Predom. Rc L/M571.31.0502 5B SF Bay Low869.70.6899 TriNum AP High471.01.2739 Predom. Rc Med501.61.1962 5B SF Bay L/M724.00.8287 TriNum W/L Low921.00.6515 Predom. Rc M/H444.51.3499 5B SF Bay Med634.00.9464 TriNum W/L Med669.00.8968 Predom. Rc High409.61.4649 5B SF Bay M/H571.01.0508 TriNum W/L Hig574.91.0437 5B W/L Low1033.00.5808 5B SF Bay High525.61.1416 Predom. Upwind619.00.9693 5B W/L L/M759.50.7900 ChiMac Up Low742.70.8078 Predom. Reaching532.01.1278 5B W/L Med659.20.9102 ChiMac Up Med673.70.8906 Predom. Downwind557.61.0761 5B W/L M/H589.51.0178 ChiMac Up High590.91.0153 Predom. Up Low840.70.7137 5B W/L High535.21.1210 ChiMac Off Low711.70.8431 Predom. Up L/M645.20.9299 W/L 60-40 Low1041.40.5762 ChiMac Off Med626.30.9580 Predom. Up Med580.01.0345 W/L 60-40 L/M770.20.7790 ChiMac Off High518.51.1571 Predom. Up M/H540.71.1096 W/L 60-40 Med675.20.8886 ChiMac AP Low724.40.8282 Predom. Up High519.61.1547 W/L 60-40 M/H614.70.9761 ChiMac AP Med648.10.9257 Predom. Dn Low823.90.7283 W/L 60-40 High570.81.0511 ChiMac AP High553.61.0839 Predom. Dn L/M613.00.9788 5B AP Low760.70.7887 BayMac Cove Island831.90.7212 Predom. Dn Med522.81.1476 5B AP L/M605.40.9910 BayMac Shore826.20.7262 Predom. Dn M/H444.11.3509 5B AP Med533.31.1251 Harvest Moon457.91.3102      SA/DSPL Up34.96SA/DSPL Dn79.34
ORC Ref  03190004BN7 Issued on 17/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
O.C.ESSEITA-1972S850
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassEsse 850Measurement01/01/2010HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall8.500Maximum beam2.190Draft2.005Displacement1,286Wetted area13.23IMS L8.008LSM07.449Accomod. length7.117Sink (kg/mm) 9.98
VCGD-0.300VCGM-0.300 RM Rated (kg·m) 36.6Limit of positive stability(°) 122.0 Stability Index 118.9 BLR index 0.0000Default crew weight452 Declared crew weight 460
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P10.500IG10.000ISP11.500MDT10.082MDL10.124MDT2MDL2TLNo TaperMW0.124GO0.144
E3.650J3.070BAS1.106FSDNo FoilSFJ0.260SPLWPLTPS4.450BD0.136MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.300Flotation Date01/01/2013
SFFP0.060FFM0.813FF0.817LCFcl4.506SG1.0005
SAFP8.000FAM0.717FA0.720LCFsh4.628HBI0.749
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03190004BN7 Issued on 17/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
O.C.ESSEITA-1972S850
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.300.931.572.563.1824.3712/02/2026
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.060.500.951.752.523.309.90NoNo 17.0012/02/2026
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA13.1010.7011.907.017.01100%69.5212/02/2026
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  03190004BN7 Issued on 17/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org