Double HandedClub Certificate2026
GUMBO IVJPN 7255
JAPAN SAILING FEDERATION
4-2, Kasumigaokacho,
Shinjuku, Tokyo
Japan
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 Angles48.6°46.0°41.8°40.8°40.5°40.5°40.7°42.0°47.5°
Beat VMG2.643.724.434.774.924.995.024.904.53
52°4.235.846.647.097.277.377.427.397.10
60°4.696.286.977.407.587.687.747.757.63
75°5.146.697.437.707.968.128.258.378.40
90°5.196.747.598.048.328.538.749.049.24
110°4.736.357.508.078.529.039.4610.1210.54
120°4.416.277.478.198.779.189.5810.6011.83
135°3.925.627.007.828.519.2610.1611.9913.37
150°3.244.715.957.017.798.399.0311.2214.33
Run VMG2.814.085.156.076.777.277.829.7212.41
Gybe Angles139.1°142.1°145.9°148.6°152.5°151.1°148.3°144.3°146.5°
APH ToD:521.3CDL: 9.216APH ToT: 1.1509CertNo:260550
BOAT
ClassFIRST 36 SEDesignerMANUARDBuilderSeascapeAge date01/2026Series date01/2022Offset fileFIRST36SE.offData fileJC260550
HULL
Length Overall10.966 mMaximum Beam3.794 mDraft1.920 mDisplacement4,322 kgDLR4.5148IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.130%RS Assessment-0.178%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.450m
CREW
Maximum weight170 kgMinimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail40.1440.85Headsail Luffed35.8535.85Headsail Flying68.7868.78SymmetricAsymmetric133.32133.32 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail11.84Storm Jib10.13Heavy Weather Jib27.34
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 129.3 kg·m Stability Index 117.3
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  03390004VHD Issued on 21/07/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
GUMBO IVJPN 7255
JAPAN SAILING FEDERATION
4-2, Kasumigaokacho,
Shinjuku, Tokyo
Japan
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 VMG1364.0968.4812.4754.0731.3721.5717.8734.5794.8
52°850.7616.6542.5508.0494.9488.4485.0487.3506.8
60°768.1573.0516.3486.3475.2468.9465.4464.8471.7
75°699.9537.8484.3467.6452.4443.3436.3430.1428.4
90°693.6533.9474.3447.6432.7422.1411.9398.1389.5
110°761.6566.7480.3446.4422.5398.9380.4355.9341.5
120°816.7574.5482.0439.7410.6392.1375.7339.5304.3
135°917.5641.1514.6460.1422.8388.9354.4300.3269.3
150°1110.2764.4605.4513.9462.1428.9398.7320.7251.2
Run VMG1282.0882.6699.1593.4531.5494.9460.4370.4290.0
Selected Courses
Windward / Leeward1323.0925.5755.7673.7631.4608.2589.1552.4542.4
All purpose981.3701.8588.1536.1508.0489.6474.3449.6442.6
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward654.20.9172
All purpose521.31.1509
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance569.31.0540
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7721
Downwind "popa"1.0416
70% up, 30% down "Ilhabela"0.8371
30% up, 70% down "Ilhabela-inverso"0.9429
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Predominantly Upwind575.31.0429
Predominantly Downwind511.91.1720
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP540.01.1110 Predom. Rc High414.21.4486 5B SF Bay L/M699.70.8575 TriNum AP Low644.90.9304 Predom. Dn Low768.80.7805 5B SF Bay Med618.80.9696 TriNum AP Med519.51.1550 Predom. Dn L/M575.81.0420 5B SF Bay M/H572.11.0487 TriNum AP High468.91.2797 Predom. Dn Med497.91.2051 5B SF Bay High545.91.0992 TriNum W/L Low880.70.6813 Predom. Dn M/H440.91.3609 5B AP Low704.80.8513 TriNum W/L Med650.10.9230 Predom. Dn High395.71.5165 5B AP L/M574.71.0441 TriNum W/L Hig580.11.0343 ChiMac Up Low702.60.8540 5B AP Med513.41.1686 Predom. Upwind598.01.0033 ChiMac Up Med644.50.9310 5B AP M/H475.51.2617 Predom. Reaching504.61.1892 ChiMac Up High576.91.0400 5B AP High452.71.3255 Predom. Downwind532.61.1266 ChiMac Off Low666.40.9004 5B W/L Low982.40.6107 Predom. Up Low785.70.7637 ChiMac Off Med591.41.0145 5B W/L L/M733.50.8181 Predom. Up L/M616.80.9727 ChiMac Off High499.41.2015 5B W/L Med641.40.9355 Predom. Up Med561.71.0682 ChiMac AP Low680.10.8823 5B W/L M/H589.71.0175 Predom. Up M/H534.51.1226 ChiMac AP Med614.80.9759 5B W/L High557.01.0771 Predom. Up High527.21.1380 ChiMac AP High536.41.1186 W/L 60-40 Low991.60.6051 Predom. Rc Low677.80.8853 BayMac Cove Island784.50.7648 W/L 60-40 L/M747.30.8029 Predom. Rc L/M531.31.1293 BayMac Shore777.60.7716 W/L 60-40 Med660.90.9079 Predom. Rc Med476.91.2582 Harvest Moon443.81.3519 W/L 60-40 M/H616.20.9737 Predom. Rc M/H438.91.3671 5B SF Bay Low830.20.7227 W/L 60-40 High594.01.0100      SA/DSPL Up28.50SA/DSPL Dn65.06
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance569.31.0540
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance569.31.0540
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance569.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating569.31.0540
FinRating, kevyt tuuli961.11.0405
FinRating, kova tuuli454.31.1006
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0540
Triple Number Coastal/Long Distance Low0.9304
Triple Number Coastal/Long Distance Medium1.1551
Triple Number Coastal/Long Distance High1.2797
Triple Number Windward/Leeward Low0.7138
Triple Number Windward/Leeward Medium0.9230
Triple Number Windward/Leeward High1.0343
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
For information
General Purpose Handicap (GPH)579.6
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance569.31.0540
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Saronikos S All Purpose588.01.0204
Saronikos S Upwind678.20.8846
Saronikos S Downwind469.31.2786
Saronikos N All Purpose626.20.9582
Saronikos N Upwind706.00.8498
Saronikos N Downwind523.31.1465
Saronikos SW All Purpose582.21.0306
Saronikos SW Upwind681.10.8809
Saronikos SW Downwind478.41.2542
Saronikos NE All Purpose637.60.9410
Saronikos NE Upwind649.50.9237
Saronikos NE Downwind587.21.0218
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose540.01.1110
5-Band All Purpose Low771.80.7774
5-Band All Purpose L/M593.81.0104
5-Band All Purpose Med528.41.1354
5-Band All Purpose M/H487.21.2315
5-Band All Purpose High461.51.3000
Single Number Predominant Upwind573.91.0454
Single Number Predominant Reaching487.51.2308
Single Number Predominant Downwind513.31.1689
5-Band 50-50 Windward/Leeward Low982.40.6107
5-Band 50-50 Windward/Leeward L/M733.50.8181
5-Band 50-50 Windward/Leeward Med641.40.9355
5-Band 50-50 Windward/Leeward M/H589.71.0175
5-Band 50-50 Windward/Leeward High557.01.0771
5-Band 60-40 Windward/Leeward Low991.60.6051
5-Band 60-40 Windward/Leeward L/M747.30.8029
5-Band 60-40 Windward/Leeward Med660.90.9079
5-Band 60-40 Windward/Leeward M/H616.20.9737
5-Band 60-40 Windward/Leeward High594.01.0100
Triple Number 50-50 Windward/Leeward Low880.70.6813
Triple Number 50-50 Windward/Leeward Med650.10.9229
Triple Number 50-50 Windward/Leeward High580.11.0343
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward673.90.8904
Triple Number 60-40 Windward/Leeward Low890.90.6735
Triple Number 60-40 Windward/Leeward Med668.70.8972
Triple Number 60-40 Windward/Leeward High609.10.9851
Triple Number All-Purpose Low698.30.8593
Triple Number All-Purpose Med535.01.1216
Triple Number All-Purpose High479.81.2506
Triple Number Predominant Upwind Low719.80.8336
Triple Number Predominant Upwind Med568.61.0552
Triple Number Predominant Upwind High541.11.1089
Triple Number Predominant Reaching Low622.30.9642
Triple Number Predominant Reaching Med492.91.2172
Triple Number Predominant Reaching High422.01.4219
Triple Number Predominant Downwind Low689.90.8697
Triple Number Predominant Downwind Med505.21.1877
Triple Number Predominant Downwind High414.71.4467
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance569.31.0540
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance569.31.0540
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low644.9
Triple Number Coastal/Long Distance Medium519.4
Triple Number Coastal/Long Distance High468.9
Triple Number Windward/Leeward Low840.6
Triple Number Windward/Leeward Medium650.1
Triple Number Windward/Leeward High580.1
Predominantly Upwind575.3
Predominantly Downwind511.9
Predominantly Reaching492.0
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance569.31.0540
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9304
Triple Number Coastal/Long Distance Medium1.1551
Triple Number Coastal/Long Distance High1.2797
Triple Number Windward/Leeward Low0.7138
Triple Number Windward/Leeward Medium0.9230
Triple Number Windward/Leeward High1.0343
Coastal/Long Distance1.0540
Predominantly Upwind1.0429
Predominantly Downwind1.1720
For information
General Purpose Handicap (GPH)579.6
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.1509
Distanseseilas Trippeltall svak vind0.9304
Distanseseilas Trippeltall mellomvind1.1551
Distanseseilas Trippeltall sterk vind1.2797
Pølsebane Trippeltall svak vind0.7138
Pølsebane Trippeltall mellomvind0.9230
Pølsebane Trippeltall sterk vind1.0343
Motvind Singeltall1.0429
Medvind Singeltall1.1720
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Coastal/Long Distance569.31.0540
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind575.31.0429
Predominantly Downwind511.91.1720
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore545.41.1001
Cape Doctor Coastal444.71.3492
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9304
Triple Number Coastal/Long Distance Medium1.1551
Triple Number Coastal/Long Distance High1.2797
Triple Number Windward/Leeward Low0.7138
Triple Number Windward/Leeward Medium0.9230
Triple Number Windward/Leeward High1.0343
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9304
Triple Number Coastal/Long Distance Medium1.1551
Triple Number Coastal/Long Distance High1.2797
Triple Number Windward/Leeward Low0.7138
Triple Number Windward/Leeward Medium0.9230
Triple Number Windward/Leeward High1.0343
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance569.31.0540
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Predominantly Upwind575.31.0429
Predominantly Downwind511.91.1720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance569.31.0540
Triple Number Coastal/Long Distance Low644.90.9304
Triple Number Coastal/Long Distance Medium519.41.1551
Triple Number Coastal/Long Distance High468.91.2797
Triple Number Windward/Leeward Low840.60.7138
Triple Number Windward/Leeward Medium650.10.9230
Triple Number Windward/Leeward High580.11.0343
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1318.9921.2708.5604.6544.6510.0479.4423.2405.5
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP540.01.1110 Predom. Dn High395.71.5165 5B AP M/H475.51.2617 TriNum AP Low644.90.9304 Predom. Rc Low677.80.8853 5B AP High452.71.3255 TriNum AP Med519.51.1550 Predom. Rc L/M531.31.1293 5B SF Bay Low830.20.7227 TriNum AP High468.91.2797 Predom. Rc Med476.91.2582 5B SF Bay L/M699.70.8575 TriNum W/L Low880.70.6813 Predom. Rc M/H438.91.3671 5B SF Bay Med618.80.9696 TriNum W/L Med650.10.9230 Predom. Rc High414.21.4486 5B SF Bay M/H572.11.0487 TriNum W/L Hig580.11.0343 5B W/L Low982.40.6107 5B SF Bay High545.91.0992 Predom. Upwind598.01.0033 5B W/L L/M733.50.8181 ChiMac Up Low702.60.8540 Predom. Reaching504.61.1892 5B W/L Med641.40.9355 ChiMac Up Med644.50.9310 Predom. Downwind532.61.1266 5B W/L M/H589.71.0175 ChiMac Up High576.91.0400 Predom. Up Low785.70.7637 5B W/L High557.01.0771 ChiMac Off Low666.40.9004 Predom. Up L/M616.80.9727 W/L 60-40 Low991.60.6051 ChiMac Off Med591.41.0145 Predom. Up Med561.71.0682 W/L 60-40 L/M747.30.8029 ChiMac Off High499.41.2015 Predom. Up M/H534.51.1226 W/L 60-40 Med660.90.9079 ChiMac AP Low680.10.8823 Predom. Up High527.21.1380 W/L 60-40 M/H616.20.9737 ChiMac AP Med614.80.9759 Predom. Dn Low768.80.7805 W/L 60-40 High594.01.0100 ChiMac AP High536.41.1186 Predom. Dn L/M575.81.0420 5B AP Low704.80.8513 BayMac Cove Island784.50.7648 Predom. Dn Med497.91.2051 5B AP L/M574.71.0441 BayMac Shore777.60.7716 Predom. Dn M/H440.91.3609 5B AP Med513.41.1686 Harvest Moon443.81.3519      SA/DSPL Up28.50SA/DSPL Dn65.06
ORC Ref  03390004VHD Issued on 21/07/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
GUMBO IVJPN 7255
JAPAN SAILING FEDERATION
4-2, Kasumigaokacho,
Shinjuku, Tokyo
Japan
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFIRST 36 SEMeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.966Maximum beam3.794Draft1.920Displacement4,322Wetted area26.41IMS L10.092LSM09.855Accomod. length10.966Sink (kg/mm) 20.13
VCGD0.020VCGM0.071 RM Rated (kg·m) 129.3Limit of positive stability(°) 121.7 Stability Index 117.3 BLR index 0.0000Default crew weight170 Declared crew weight
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.450PBWPIPA0.0008
EDLST1ST2
ST3ST4ST5
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P14.000IG14.229ISP15.928MDT10.121MDL10.188MDT2MDL2TLTaperMWGO
E4.830J4.850BAS1.528FSDFoilSFJ0.000SPLWPLTPS5.810BDMWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date14/07/2026
SFFP0.817FFMFF1.384LCFcl5.942SG
SAFP10.830FAMFA1.101LCFsh6.194HBI1.315
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03390004VHD Issued on 21/07/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
GUMBO IVJPN 7255
JAPAN SAILING FEDERATION
4-2, Kasumigaokacho,
Shinjuku, Tokyo
Japan
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.501.121.813.023.9940.14
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20.061.282.474.636.377.8015.97NoYes068.7810.080.641.242.463.694.8814.56YesNo 35.85
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment117.9415.5516.759.569.53100%133.32
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  03390004VHD Issued on 21/07/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org