Club
Certificate
2023

Boat

Miria

NOR 4753

Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles42.6°40.8°40.0°38.8°38.8°38.7°38.8°
Beat VMG2.923.503.934.204.334.394.42
52°4.415.185.685.966.116.186.24
60°4.615.395.846.106.256.346.42
75°4.725.525.976.246.416.546.70
90°4.625.546.076.326.466.636.88
110°4.755.706.226.536.756.947.18
120°4.625.586.176.516.787.027.42
135°4.225.175.906.326.636.927.45
150°3.634.595.405.996.356.647.16
Run VMG3.153.984.695.325.846.236.77
Gybe Angles147.5°151.4°154.1°161.3°174.8°178.1°179.0°

APH: 660.5

CDL: 6.700

GPH: 740.9

CertNo: 674550

BOAT
ClassUFO 31DesignerHOLMAN & PYEBuilderCOLVIC CRAFTAge date01/1979Series date01/1976Offset fileH044.bofData file674550
HULL
Length Overall9.400 mMaximum Beam3.056 mDraft1.724 mDisplacement3,966 kgDLR10.1220IMS DivisionCruiser/RacerDynamic Allowance0.580%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.340m
CREW
Maximum weight441 kgMinimum weight331 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail17.0317.20Headsail Luffed28.8828.88Headsail FlyingSymmetric63.4063.40Asymmetric
STORM SAIL AREAS (m²)
Trysail5.18Storm Jib6.88Heavy Weather Jib18.58
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
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.

Club
Certificate
2023

Boat

Miria

NOR 4753

Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1234.51027.4915.7856.1832.0820.1815.1
52°816.9694.7633.6604.3589.6582.5577.1
60°781.2668.4616.1590.3575.9567.6560.6
75°763.5652.7602.7577.4561.4550.1537.2
90°778.5649.6593.3569.3557.3543.1523.6
110°758.4632.1579.0551.7533.1518.9501.7
120°779.9644.8583.9553.0530.7513.1485.0
135°852.9695.8610.0569.3542.7520.5483.2
150°991.1784.0667.2601.3566.7542.4503.0
Run VMG1144.5904.3766.8676.8616.0578.1532.0
Selected Courses
Windward / Leeward1189.5965.8841.3766.5724.0699.1673.6
All purpose928.6766.0681.8636.0610.9594.5574.3
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward802.60.7475
All purpose660.50.9084
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6461
Downwind "popa"0.8048
70% up, 30% down "Ilhabela"0.6867
30% up, 70% down "Ilhabela-inverso"0.7496
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Predominantly Upwind716.40.8375
Predominantly Downwind665.80.9012
Custom scoring options for Canada
Scoring OptionTime On
Distance
Time On
Time
Triple Number All Purpose Low847.20.7082
Triple Number All Purpose Medium655.80.9149
Triple Number All Purpose High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Predominantly Upwind716.40.8375
Predominantly Downwind665.80.9012
Predominantly Upwind Low947.00.6336
Predominantly Upwind Medium740.70.8101
Predominantly Upwind High688.60.8713
Predominantly Downwind Low912.50.6575
Predominantly Downwind Medium655.10.9159
Predominantly Downwind High555.11.0808
Chicago-Mac Upwind0.8220
Chicago-Mac All Purpose0.8506
Chicago-Mac Downwind0.8860
Bayview-Mac Cove Island0.7900
Bayview-Mac Shore0.7957
Scoring OptionTime On
Distance
Time On
Time
Predominantly Reaching630.70.9513
Predominantly Reaching Low772.70.7765
Predominantly Reaching Medium623.60.9621
Predominantly Reaching High556.71.0778
5-Band
Windward/Leeward
Time On
Distance
Time On
Time
5-Band Low1172.20.5118
5-Band Low / Medium986.70.6081
5-Band Medium782.80.7664
5-Band Medium / High704.60.8515
5-Band High678.00.8850
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance716.2
Triple Number Coastal/Long Distance Low847.2
Triple Number Coastal/Long Distance Medium655.8
Triple Number Coastal/Long Distance High591.0
Triple Number Windward/Leeward Low1077.6
Triple Number Windward/Leeward Medium797.4
Triple Number Windward/Leeward High695.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7082
Triple Number Coastal/Long Distance Medium0.9149
Triple Number Coastal/Long Distance High1.0152
Triple Number Windward/Leeward Low0.5568
Triple Number Windward/Leeward Medium0.7524
Triple Number Windward/Leeward High0.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low847.2
Triple Number Coastal/Long Distance Medium655.8
Triple Number Coastal/Long Distance High591.0
Triple Number Windward/Leeward Low1077.6
Triple Number Windward/Leeward Medium797.4
Triple Number Windward/Leeward High695.7
Predominantly Upwind716.4
Predominantly Downwind665.8
Predominantly Reaching643.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7082
Triple Number Coastal/Long Distance Medium0.9149
Triple Number Coastal/Long Distance High1.0152
Triple Number Windward/Leeward Low0.5568
Triple Number Windward/Leeward Medium0.7524
Triple Number Windward/Leeward High0.8624
Coastal/Long Distance0.8378
Predominantly Upwind0.8375
Predominantly Downwind0.9012
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7082
Tretall Distanseseilas Mellomvind0.9149
Tretall Distanseseilas Mye vind1.0152
Tretall Pølsebane Lite vind0.5568
Tretall Pølsebane Mellomvind0.7524
Tretall Pølsebane Mye vind0.8624
Distanseseilas ett tall (OSN 8-16kn)0.8378
Distanseseilas ett tall (APH 6-20kn)0.9084
Enkeltall Motvind0.8375
Enkeltall Medvind0.9012
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Coastal/Long Distance716.20.8378
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind716.40.8375
Predominantly Downwind665.80.9012
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore681.20.8808
Cape Doctor Coastal580.41.0338
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7082
Triple Number Coastal/Long Distance Medium0.9149
Triple Number Coastal/Long Distance High1.0152
Triple Number Windward/Leeward Low0.5568
Triple Number Windward/Leeward Medium0.7524
Triple Number Windward/Leeward High0.8624
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7082
Triple Number Coastal/Long Distance Medium0.9149
Triple Number Coastal/Long Distance High1.0152
Triple Number Windward/Leeward Low0.5568
Triple Number Windward/Leeward Medium0.7524
Triple Number Windward/Leeward High0.8624
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Predominantly Upwind716.40.8375
Predominantly Downwind665.80.9012
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.20.8378
Triple Number Coastal/Long Distance Low847.20.7082
Triple Number Coastal/Long Distance Medium655.80.9149
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1185.0910.0762.6677.0633.3600.8551.1
Custom scoring options for United States of America
Scoring OptionTime On
Distance
Time On
Time
Triple Number All Purpose Low847.20.7082
Triple Number All Purpose Medium655.80.9149
Triple Number All Purpose High591.01.0152
Triple Number Windward/Leeward Low1077.60.5568
Triple Number Windward/Leeward Medium797.40.7524
Triple Number Windward/Leeward High695.70.8624
Predominantly Upwind716.40.8375
Predominantly Downwind665.80.9012
Predominantly Upwind Low947.00.6336
Predominantly Upwind Medium740.70.8101
Predominantly Upwind High688.60.8713
Predominantly Downwind Low912.50.6575
Predominantly Downwind Medium655.10.9159
Predominantly Downwind High555.11.0808
Chicago-Mac Upwind0.8220
Chicago-Mac All Purpose0.8506
Chicago-Mac Downwind0.8860
Bayview-Mac Cove Island0.7900
Bayview-Mac Shore0.7957
Harvest Moon Regatta578.51.0372
Scoring OptionTime On
Distance
Time On
Time
San Francisco Bay Heavy686.50.8740
San Francisco Bay Medium793.30.7564
Predominantly Reaching630.70.9513
Predominantly Reaching Low772.70.7765
Predominantly Reaching Medium623.60.9621
Predominantly Reaching High556.71.0778
Windward/Leeward 60-40 Low1088.30.5513
Windward/Leeward 60-40 Medium827.00.7255
Windward/Leeward 60-40 High738.40.8125
5-Band
Windward/Leeward
Time On
Distance
Time On
Time
5-Band Low1172.20.5118
5-Band Low / Medium986.70.6081
5-Band Medium782.80.7664
5-Band Medium / High704.60.8515
5-Band High678.00.8850

Club
Certificate
2023

Boat

Miria

NOR 4753

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassUFO 31MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.400Max. Beam3.056Draft1.724Displacement3,966Wetted area17.47IMS L7.315LSM07.317Acc. length9.400Sink (kg/mm) 11.85
VCGD-0.070VCGM-0.025RM Rated (kg·m) 54.5Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.340PBWPIPA0.0056
PSD0.025PHD0.070PHL0.210
PSA25.0°ESL0.630
ST10.015ST20.080ST30.080
ST40.060ST50.150
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P10.330IG11.730ISP11.730MDT10.130MDL10.180MDT20.000MDL20.000TL0.000MW0.000GO0.000
E2.860J3.780BAS0.970FSDFoilSFJ0.000SPL3.860WPLTPS0.000BDMWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.070Flotation Date01/01/2015MeasurerComment
SFFP0.583FFMFF1.150LCFcl5.195SG1.0000
SAFP8.857FAMFA0.925LCFsh5.413HBI1.013
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2023

Boat

Miria

NOR 4753

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment330-2019060414480.130.561.001.742.3617.0304/06/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment306-2019120914110.080.641.232.483.815.2011.35NoNo 28.8809/12/2019330-2019060414510.100.551.052.193.464.8211.27NoNo 25.9104/06/2019
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment365-20220113122211.6511.6511.656.576.3763.4013/01/2022