Non Spin/HSFClub Certificate2026
FireflyGBR 3550L
ORC
Central Rating Office
Issuing certificates for
UNITED KINGDOM
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 Angles45.7°42.3°40.3°38.5°37.4°36.8°36.6°36.7°37.8°
Beat VMG2.623.684.444.975.225.345.415.475.41
52°4.105.546.497.017.267.387.467.547.55
60°4.395.816.697.167.437.587.677.787.82
75°4.595.996.827.277.597.837.998.198.30
90°4.465.876.777.257.607.918.198.618.87
110°3.835.246.297.007.447.828.198.999.70
120°3.434.896.006.807.297.678.068.899.99
135°2.884.255.376.276.927.357.718.499.46
150°2.383.584.665.586.376.967.368.078.88
Run VMG2.063.104.044.885.676.396.957.708.42
Gybe Angles140.2°145.1°151.4°157.9°176.2°177.5°178.9°179.3°179.1°
APH ToD:566.3CDL: 9.435APH ToT: 1.0595CertNo:061702
BOAT
ClassX-35DesignerN. JEPPESENBuilderX YACHTSAge date03/2007Series date09/2005Offset filex35.od.offData fileGBR3550L_NS
HULL
Length Overall10.600 mMaximum Beam3.250 mDraft2.175 mDisplacement4,651 kgDLR6.0737IMS DivisionCruiser/RacerDynamic Allowance0.090%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.400m
CREW
Maximum weight650 kg(declared)Minimum weight520 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail40.9641.79Headsail Luffed31.2631.26Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail11.88Storm Jib10.45Heavy Weather Jib28.19
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting Moment 130.0 kg·m Stability Index 133.7
COMMENTS
SPL = 4.284
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  03860004TD2 Issued on 17/06/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
FireflyGBR 3550L
ORC
Central Rating Office
Issuing certificates for
UNITED KINGDOM
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 VMG1372.3979.1810.5724.7689.4673.8664.9657.7665.7
52°878.2649.4555.0513.3495.6487.8482.9477.3476.8
60°820.8619.6538.1502.5484.6475.1469.6462.6460.6
75°784.3601.2527.7495.1474.4459.8450.4439.6434.0
90°806.3613.1532.0496.3474.0455.4439.6418.1405.7
110°939.7687.3572.3514.2483.8460.6439.4400.4371.0
120°1050.5736.2600.1529.6493.8469.1446.8404.7360.3
135°1251.4846.5670.8574.2520.3489.8466.8424.0380.7
150°1513.91006.3773.2644.9565.1517.5488.9446.0405.6
Run VMG1748.01161.9892.0737.9634.5563.5518.2467.7427.7
Selected Courses
Windward / Leeward1560.11070.5851.2731.3661.9618.6591.6562.7546.7
All purpose1154.6814.4665.5587.9545.3519.2501.5476.8459.2
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward694.50.8639
All purpose566.31.0595
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance618.10.9707
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.8077
Downwind "popa"0.8441
70% up, 30% down "Ilhabela"0.8183
30% up, 70% down "Ilhabela-inverso"0.8328
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Predominantly Upwind596.81.0054
Predominantly Downwind595.91.0068
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP589.51.0179 Predom. Rc High454.71.3197 5B SF Bay L/M769.60.7796 TriNum AP Low740.00.8108 Predom. Dn Low958.50.6260 5B SF Bay Med651.80.9206 TriNum AP Med563.11.0655 Predom. Dn L/M687.70.8724 5B SF Bay M/H584.81.0260 TriNum AP High496.71.2081 Predom. Dn Med572.11.0487 5B SF Bay High555.81.0796 TriNum W/L Low1008.80.5948 Predom. Dn M/H500.61.1985 5B AP Low836.00.7177 TriNum W/L Med690.10.8695 Predom. Dn High462.81.2965 5B AP L/M642.40.9341 TriNum W/L Hig587.51.0212 ChiMac Up Low752.50.7973 5B AP Med554.41.0823 Predom. Upwind620.40.9671 ChiMac Up Med678.10.8848 5B AP M/H504.01.1905 Predom. Reaching567.81.0567 ChiMac Up High592.41.0129 5B AP High478.01.2552 Predom. Downwind626.90.9571 ChiMac Off Low812.10.7389 5B W/L Low1138.10.5272 Predom. Up Low858.40.6990 ChiMac Off Med706.80.8489 5B W/L L/M813.30.7377 Predom. Up L/M653.40.9183 ChiMac Off High583.21.0287 5B W/L Med676.10.8874 Predom. Up Med576.71.0404 ChiMac AP Low776.40.7728 5B W/L M/H597.21.0047 Predom. Up M/H537.91.1154 ChiMac AP Med688.20.8718 5B W/L High564.91.0620 Predom. Up High521.11.1515 ChiMac AP High585.11.0255 W/L 60-40 Low1117.50.5369 Predom. Rc Low801.70.7484 BayMac Cove Island899.70.6669 W/L 60-40 L/M808.10.7425 Predom. Rc L/M606.30.9896 BayMac Shore888.30.6754 W/L 60-40 Med681.00.8811 Predom. Rc Med528.51.1353 Harvest Moon502.81.1933 W/L 60-40 M/H611.20.9816 Predom. Rc M/H481.51.2462 5B SF Bay Low942.50.6366 W/L 60-40 High584.01.0273      SA/DSPL Up25.79SA/DSPL Dn25.79
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance618.10.9707
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance618.10.9707
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance618.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating618.10.9707
FinRating, kevyt tuuli1124.40.8894
FinRating, kova tuuli480.51.0405
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9707
Triple Number Coastal/Long Distance Low0.8108
Triple Number Coastal/Long Distance Medium1.0657
Triple Number Coastal/Long Distance High1.2081
Triple Number Windward/Leeward Low0.6244
Triple Number Windward/Leeward Medium0.8695
Triple Number Windward/Leeward High1.0212
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
For information
General Purpose Handicap (GPH)638.2
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance618.10.9707
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Saronikos S All Purpose630.90.9511
Saronikos S Upwind682.30.8793
Saronikos S Downwind583.71.0280
Saronikos N All Purpose670.40.8950
Saronikos N Upwind711.80.8430
Saronikos N Downwind648.40.9254
Saronikos SW All Purpose640.90.9362
Saronikos SW Upwind701.10.8558
Saronikos SW Downwind597.51.0041
Saronikos NE All Purpose706.30.8495
Saronikos NE Upwind670.40.8950
Saronikos NE Downwind737.30.8137
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose589.51.0179
5-Band All Purpose Low900.80.6661
5-Band All Purpose L/M667.00.8995
5-Band All Purpose Med572.41.0482
5-Band All Purpose M/H517.61.1593
5-Band All Purpose High490.31.2236
Single Number Predominant Upwind594.61.0091
Single Number Predominant Reaching545.41.1001
Single Number Predominant Downwind597.41.0044
5-Band 50-50 Windward/Leeward Low1138.10.5272
5-Band 50-50 Windward/Leeward L/M813.30.7377
5-Band 50-50 Windward/Leeward Med676.10.8874
5-Band 50-50 Windward/Leeward M/H597.21.0047
5-Band 50-50 Windward/Leeward High564.91.0620
5-Band 60-40 Windward/Leeward Low1117.50.5369
5-Band 60-40 Windward/Leeward L/M808.10.7425
5-Band 60-40 Windward/Leeward Med681.00.8811
5-Band 60-40 Windward/Leeward M/H611.20.9816
5-Band 60-40 Windward/Leeward High584.01.0273
Triple Number 50-50 Windward/Leeward Low1008.80.5948
Triple Number 50-50 Windward/Leeward Med690.10.8694
Triple Number 50-50 Windward/Leeward High587.51.0212
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward698.80.8586
Triple Number 60-40 Windward/Leeward Low993.80.6037
Triple Number 60-40 Windward/Leeward Med693.60.8651
Triple Number 60-40 Windward/Leeward High602.90.9952
Triple Number All-Purpose Low806.80.7437
Triple Number All-Purpose Med581.91.0310
Triple Number All-Purpose High509.81.1769
Triple Number Predominant Upwind Low785.90.7635
Triple Number Predominant Upwind Med587.01.0222
Triple Number Predominant Upwind High535.71.1199
Triple Number Predominant Reaching Low726.30.8261
Triple Number Predominant Reaching Med543.81.1034
Triple Number Predominant Reaching High466.21.2869
Triple Number Predominant Downwind Low846.70.7086
Triple Number Predominant Downwind Med587.71.0210
Triple Number Predominant Downwind High483.91.2400
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance618.10.9707
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance618.10.9707
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low740.0
Triple Number Coastal/Long Distance Medium563.0
Triple Number Coastal/Long Distance High496.6
Triple Number Windward/Leeward Low960.9
Triple Number Windward/Leeward Medium690.1
Triple Number Windward/Leeward High587.5
Predominantly Upwind596.8
Predominantly Downwind595.9
Predominantly Reaching561.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance618.10.9707
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8108
Triple Number Coastal/Long Distance Medium1.0657
Triple Number Coastal/Long Distance High1.2081
Triple Number Windward/Leeward Low0.6244
Triple Number Windward/Leeward Medium0.8695
Triple Number Windward/Leeward High1.0212
Coastal/Long Distance0.9707
Predominantly Upwind1.0054
Predominantly Downwind1.0068
For information
General Purpose Handicap (GPH)638.2
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0595
Distanseseilas Trippeltall svak vind0.8108
Distanseseilas Trippeltall mellomvind1.0657
Distanseseilas Trippeltall sterk vind1.2081
Pølsebane Trippeltall svak vind0.6244
Pølsebane Trippeltall mellomvind0.8695
Pølsebane Trippeltall sterk vind1.0212
Motvind Singeltall1.0054
Medvind Singeltall1.0068
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Coastal/Long Distance618.10.9707
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind596.81.0054
Predominantly Downwind595.91.0068
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore551.51.0879
Cape Doctor Coastal464.51.2917
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8108
Triple Number Coastal/Long Distance Medium1.0657
Triple Number Coastal/Long Distance High1.2081
Triple Number Windward/Leeward Low0.6244
Triple Number Windward/Leeward Medium0.8695
Triple Number Windward/Leeward High1.0212
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8108
Triple Number Coastal/Long Distance Medium1.0657
Triple Number Coastal/Long Distance High1.2081
Triple Number Windward/Leeward Low0.6244
Triple Number Windward/Leeward Medium0.8695
Triple Number Windward/Leeward High1.0212
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance618.10.9707
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Predominantly Upwind596.81.0054
Predominantly Downwind595.91.0068
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance618.10.9707
Triple Number Coastal/Long Distance Low740.00.8108
Triple Number Coastal/Long Distance Medium563.01.0657
Triple Number Coastal/Long Distance High496.61.2081
Triple Number Windward/Leeward Low960.90.6244
Triple Number Windward/Leeward Medium690.10.8695
Triple Number Windward/Leeward High587.51.0212
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1578.91079.6803.2661.5580.9538.7507.4457.6436.3
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP589.51.0179 Predom. Dn High462.81.2965 5B AP M/H504.01.1905 TriNum AP Low740.00.8108 Predom. Rc Low801.70.7484 5B AP High478.01.2552 TriNum AP Med563.11.0655 Predom. Rc L/M606.30.9896 5B SF Bay Low942.50.6366 TriNum AP High496.71.2081 Predom. Rc Med528.51.1353 5B SF Bay L/M769.60.7796 TriNum W/L Low1008.80.5948 Predom. Rc M/H481.51.2462 5B SF Bay Med651.80.9206 TriNum W/L Med690.10.8695 Predom. Rc High454.71.3197 5B SF Bay M/H584.81.0260 TriNum W/L Hig587.51.0212 5B W/L Low1138.10.5272 5B SF Bay High555.81.0796 Predom. Upwind620.40.9671 5B W/L L/M813.30.7377 ChiMac Up Low752.50.7973 Predom. Reaching567.81.0567 5B W/L Med676.10.8874 ChiMac Up Med678.10.8848 Predom. Downwind626.90.9571 5B W/L M/H597.21.0047 ChiMac Up High592.41.0129 Predom. Up Low858.40.6990 5B W/L High564.91.0620 ChiMac Off Low812.10.7389 Predom. Up L/M653.40.9183 W/L 60-40 Low1117.50.5369 ChiMac Off Med706.80.8489 Predom. Up Med576.71.0404 W/L 60-40 L/M808.10.7425 ChiMac Off High583.21.0287 Predom. Up M/H537.91.1154 W/L 60-40 Med681.00.8811 ChiMac AP Low776.40.7728 Predom. Up High521.11.1515 W/L 60-40 M/H611.20.9816 ChiMac AP Med688.20.8718 Predom. Dn Low958.50.6260 W/L 60-40 High584.01.0273 ChiMac AP High585.11.0255 Predom. Dn L/M687.70.8724 5B AP Low836.00.7177 BayMac Cove Island899.70.6669 Predom. Dn Med572.11.0487 5B AP L/M642.40.9341 BayMac Shore888.30.6754 Predom. Dn M/H500.61.1985 5B AP Med554.41.0823 Harvest Moon502.81.1933      SA/DSPL Up25.79SA/DSPL Dn25.79
ORC Ref  03860004TD2 Issued on 17/06/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
FireflyGBR 3550L
ORC
Central Rating Office
Issuing certificates for
UNITED KINGDOM
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassX-35Measurement25/02/2013HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.600Maximum beam3.250Draft2.175Displacement4,651Wetted area22.84IMS L9.486LSM09.148Accomod. length10.563Sink (kg/mm) 17.09
VCGD-0.236VCGM-0.262 RM Rated (kg·m) 130.0Limit of positive stability(°) 132.5 Stability Index 133.7 BLR index 0.0000Default crew weight606 Declared crew weight 650
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0033
EDL2.390ST10.042ST20.178
ST30.182ST40.110ST50.250
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P14.140IG14.450ISP14.530MDT10.125MDL10.184MDT20.118MDL20.140TL1.190MWGO
E4.800J4.200BAS1.770FSD0.035SFJSPL4.284WPLTPSBD0.220MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered130.0Flotation Date09/01/2013
SFFP0.075FFM1.184FF1.184LCFcl5.738SG1.0253
SAFP10.275FAM1.073FA1.073LCFsh5.947HBI1.065
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03860004TD2 Issued on 17/06/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
FireflyGBR 3550L
ORC
Central Rating Office
Issuing certificates for
UNITED KINGDOM
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20180.211.051.843.154.0840.9624/06/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20180.100.621.172.233.254.2814.20NoNo 31.2601/07/2018
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length10.6 mTable area0.44 m²Headroom1.74 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity92 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity62 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03860004TD2 Issued on 17/06/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org