Club
Certificate
Non Spinnaker
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 VMG2.923.513.934.214.334.394.41
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°4.625.435.966.256.466.636.88
110°4.165.085.776.206.476.707.08
120°3.984.905.636.106.406.657.09
135°3.564.495.245.826.206.466.92
150°3.073.984.735.385.886.226.70
Run VMG2.663.464.174.805.385.846.42
Gybe Angles149.3°154.1°162.8°169.4°173.0°177.5°179.3°

APH: 688.6

CDL: 6.699

GPH: 777.5

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 Allowance0.630%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 FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail5.18Storm Jib6.88Heavy Weather Jib18.58
SAIL LIMITS
Headsails5  Spinnakers0 * Spinnaker pole aboard
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.
ORC Ref  03440002KBTIssued on 03/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 VMG1234.01027.0915.5856.1832.1820.3815.5
52°816.6694.4633.5604.3589.6582.6577.2
60°781.0668.2616.0590.3575.9567.6560.7
75°763.1652.5602.6577.3561.3550.1537.2
90°779.8663.0604.5575.8557.3543.1523.6
110°864.8709.3623.5581.1556.2537.1508.5
120°904.2734.8639.5590.2562.3541.3508.1
135°1010.0801.5687.2618.4581.0556.9520.1
150°1172.7904.0760.4668.9611.8578.7537.7
Run VMG1354.11039.8863.1749.4669.6616.3560.7
Selected Courses
Windward / Leeward1294.01033.4889.3802.7750.8718.3688.1
All purpose999.7815.1716.0660.2628.5608.6586.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward843.10.7116
All purpose688.60.8713
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6461
Downwind "popa"0.7176
70% up, 30% down "Ilhabela"0.6660
30% up, 70% down "Ilhabela-inverso"0.6945
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Predominantly Upwind732.20.8194
Predominantly Downwind715.20.8389
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low907.40.6612
Triple Number All Purpose Medium683.80.8774
Triple Number All Purpose High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Predominantly Upwind732.20.8194
Predominantly Downwind715.20.8389
Predominantly Upwind Low977.90.6136
Predominantly Upwind Medium745.30.8051
Predominantly Upwind High691.10.8682
Predominantly Downwind Low1023.20.5864
Predominantly Downwind Medium715.90.8382
Predominantly Downwind High585.51.0248
Chicago-Mac Upwind0.8040
Chicago-Mac All Purpose0.8115
Chicago-Mac Downwind0.8218
Bayview-Mac Cove Island0.7531
Bayview-Mac Shore0.7672
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching657.10.9131
Predominantly Reaching Low828.90.7239
Predominantly Reaching Medium654.50.9167
Predominantly Reaching High571.71.0495
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1274.00.4710
5-Band Low / Medium1058.10.5671
5-Band Medium820.70.7311
5-Band Medium / High725.80.8267
5-Band High693.30.8654
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance749.8
Triple Number Coastal/Long Distance Low907.4
Triple Number Coastal/Long Distance Medium683.8
Triple Number Coastal/Long Distance High605.1
Triple Number Windward/Leeward Low1163.7
Triple Number Windward/Leeward Medium837.9
Triple Number Windward/Leeward High715.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6612
Triple Number Coastal/Long Distance Medium0.8774
Triple Number Coastal/Long Distance High0.9915
Triple Number Windward/Leeward Low0.5156
Triple Number Windward/Leeward Medium0.7161
Triple Number Windward/Leeward High0.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low907.4
Triple Number Coastal/Long Distance Medium683.8
Triple Number Coastal/Long Distance High605.1
Triple Number Windward/Leeward Low1163.7
Triple Number Windward/Leeward Medium837.9
Triple Number Windward/Leeward High715.1
Predominantly Upwind732.2
Predominantly Downwind715.2
Predominantly Reaching679.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6612
Triple Number Coastal/Long Distance Medium0.8774
Triple Number Coastal/Long Distance High0.9915
Triple Number Windward/Leeward Low0.5156
Triple Number Windward/Leeward Medium0.7161
Triple Number Windward/Leeward High0.8390
Coastal/Long Distance0.8002
Predominantly Upwind0.8194
Predominantly Downwind0.8389
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.6612
Tretall Distanseseilas Mellomvind0.8774
Tretall Distanseseilas Mye vind0.9915
Tretall Pølsebane Lite vind0.5156
Tretall Pølsebane Mellomvind0.7161
Tretall Pølsebane Mye vind0.8390
Distanseseilas ett tall (OSN 8-16kn)0.8002
Distanseseilas ett tall (APH 6-20kn)0.8713
Enkeltall Motvind0.8194
Enkeltall Medvind0.8389
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Coastal/Long Distance749.80.8002
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind732.20.8194
Predominantly Downwind715.20.8389
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore697.10.8607
Cape Doctor Coastal592.91.0120
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6612
Triple Number Coastal/Long Distance Medium0.8774
Triple Number Coastal/Long Distance High0.9915
Triple Number Windward/Leeward Low0.5156
Triple Number Windward/Leeward Medium0.7161
Triple Number Windward/Leeward High0.8390
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6612
Triple Number Coastal/Long Distance Medium0.8774
Triple Number Coastal/Long Distance High0.9915
Triple Number Windward/Leeward Low0.5156
Triple Number Windward/Leeward Medium0.7161
Triple Number Windward/Leeward High0.8390
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Predominantly Upwind732.20.8194
Predominantly Downwind715.20.8389
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance749.80.8002
Triple Number Coastal/Long Distance Low907.40.6612
Triple Number Coastal/Long Distance Medium683.80.8774
Triple Number Coastal/Long Distance High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1300.0975.2804.7704.2652.3615.7563.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low907.40.6612
Triple Number All Purpose Medium683.80.8774
Triple Number All Purpose High605.10.9915
Triple Number Windward/Leeward Low1163.70.5156
Triple Number Windward/Leeward Medium837.90.7161
Triple Number Windward/Leeward High715.10.8390
Predominantly Upwind732.20.8194
Predominantly Downwind715.20.8389
Predominantly Upwind Low977.90.6136
Predominantly Upwind Medium745.30.8051
Predominantly Upwind High691.10.8682
Predominantly Downwind Low1023.20.5864
Predominantly Downwind Medium715.90.8382
Predominantly Downwind High585.51.0248
Chicago-Mac Upwind0.8040
Chicago-Mac All Purpose0.8115
Chicago-Mac Downwind0.8218
Bayview-Mac Cove Island0.7531
Bayview-Mac Shore0.7672
Harvest Moon Regatta600.90.9985
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy705.60.8504
San Francisco Bay Medium832.50.7207
Predominantly Reaching657.10.9131
Predominantly Reaching Low828.90.7239
Predominantly Reaching Medium654.50.9167
Predominantly Reaching High571.71.0495
Windward/Leeward 60-40 Low1157.10.5185
Windward/Leeward 60-40 Medium853.70.7028
Windward/Leeward 60-40 High751.30.7986
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1274.00.4710
5-Band Low / Medium1058.10.5671
5-Band Medium820.70.7311
5-Band Medium / High725.80.8267
5-Band High693.30.8654
ORC Ref  03440002KBTIssued on 03/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 L7.313LSM07.317Acc. 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
ORC Ref  03440002KBTIssued on 03/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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
ORC Ref  03440002KBTIssued on 03/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org