Club
Certificate
Non Spinnaker
2023

Boat

Prospero

NOR 13987

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 Angles43.8°41.8°40.2°39.4°39.0°39.0°39.3°
Beat VMG3.093.794.294.614.754.824.84
52°4.745.666.276.626.816.896.95
60°5.005.916.486.827.017.117.19
75°5.156.086.656.997.237.417.62
90°5.035.986.627.007.287.547.97
110°4.515.556.356.877.237.578.23
120°4.255.306.136.717.107.448.14
135°3.724.765.626.326.817.167.83
150°3.204.195.055.796.416.857.50
Run VMG2.773.654.455.185.846.417.16
Gybe Angles151.4°155.6°163.1°174.8°176.6°177.5°178.4°

APH: 629.5

CDL: 8.163

GPH: 714.6

CertNo: 21042

BOAT
ClassElan 310DesignerHumphreys Yacht DeBuilderElan MarineAge date01/2010Series date01/2009Offset fileelan310.offData file21042
HULL
Length Overall9.250 mMaximum Beam3.198 mDraft1.923 mDisplacement4,175 kgDLR5.9459IMS DivisionCruiser/RacerDynamic Allowance0.310%Age Allowance0.455%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.340m
CREW
Maximum weight582 kgMinimum weight436 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail28.6529.11Headsail Luffed23.5623.56Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail8.66Storm Jib7.21Heavy Weather Jib19.46
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  03440002LSAIssued on 16/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

Prospero

NOR 13987

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 VMG1163.4950.4839.8781.7758.2747.3744.3
52°759.4636.2574.2543.5529.0522.8518.3
60°720.2609.0555.2528.2513.9506.6500.6
75°698.7591.9541.1515.2498.3485.8472.6
90°715.5601.6543.5514.3494.4477.6451.9
110°798.5648.6566.8524.0497.8475.6437.7
120°847.8679.8587.5536.2506.9483.8442.5
135°967.6755.9640.9569.9528.7502.8460.0
150°1126.5859.5712.8621.6561.7525.4480.1
Run VMG1299.9987.4809.3695.3616.5561.8502.9
Selected Courses
Windward / Leeward1231.6968.9824.6738.5687.3654.6623.6
All purpose941.4756.5657.7601.6569.0548.0522.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward779.00.7702
All purpose629.50.9532
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7017
Downwind "popa"0.7674
70% up, 30% down "Ilhabela"0.7202
30% up, 70% down "Ilhabela-inverso"0.7465
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Predominantly Upwind669.10.8968
Predominantly Downwind659.40.9099
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low848.90.7068
Triple Number All Purpose Medium625.00.9600
Triple Number All Purpose High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Predominantly Upwind669.10.8968
Predominantly Downwind659.40.9099
Predominantly Upwind Low914.20.6563
Predominantly Upwind Medium678.60.8842
Predominantly Upwind High624.40.9609
Predominantly Downwind Low968.90.6193
Predominantly Downwind Medium662.30.9059
Predominantly Downwind High527.61.1372
Chicago-Mac Upwind0.8788
Chicago-Mac All Purpose0.8835
Chicago-Mac Downwind0.8901
Bayview-Mac Cove Island0.8158
Bayview-Mac Shore0.8338
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching598.61.0023
Predominantly Reaching Low773.50.7757
Predominantly Reaching Medium597.71.0038
Predominantly Reaching High510.71.1749
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1211.40.4953
5-Band Low / Medium994.10.6036
5-Band Medium756.50.7932
5-Band Medium / High662.00.9064
5-Band High629.00.9540
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance688.3
Triple Number Coastal/Long Distance Low848.9
Triple Number Coastal/Long Distance Medium625.0
Triple Number Coastal/Long Distance High543.8
Triple Number Windward/Leeward Low1100.3
Triple Number Windward/Leeward Medium773.6
Triple Number Windward/Leeward High651.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7068
Triple Number Coastal/Long Distance Medium0.9600
Triple Number Coastal/Long Distance High1.1034
Triple Number Windward/Leeward Low0.5453
Triple Number Windward/Leeward Medium0.7756
Triple Number Windward/Leeward High0.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low848.9
Triple Number Coastal/Long Distance Medium625.0
Triple Number Coastal/Long Distance High543.8
Triple Number Windward/Leeward Low1100.3
Triple Number Windward/Leeward Medium773.6
Triple Number Windward/Leeward High651.1
Predominantly Upwind669.1
Predominantly Downwind659.4
Predominantly Reaching621.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7068
Triple Number Coastal/Long Distance Medium0.9600
Triple Number Coastal/Long Distance High1.1034
Triple Number Windward/Leeward Low0.5453
Triple Number Windward/Leeward Medium0.7756
Triple Number Windward/Leeward High0.9215
Coastal/Long Distance0.8718
Predominantly Upwind0.8968
Predominantly Downwind0.9099
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7068
Tretall Distanseseilas Mellomvind0.9600
Tretall Distanseseilas Mye vind1.1034
Tretall Pølsebane Lite vind0.5453
Tretall Pølsebane Mellomvind0.7756
Tretall Pølsebane Mye vind0.9215
Distanseseilas ett tall (OSN 8-16kn)0.8718
Distanseseilas ett tall (APH 6-20kn)0.9532
Enkeltall Motvind0.8968
Enkeltall Medvind0.9099
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Coastal/Long Distance688.30.8718
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind669.10.8968
Predominantly Downwind659.40.9099
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore632.90.9480
Cape Doctor Coastal530.31.1314
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7068
Triple Number Coastal/Long Distance Medium0.9600
Triple Number Coastal/Long Distance High1.1034
Triple Number Windward/Leeward Low0.5453
Triple Number Windward/Leeward Medium0.7756
Triple Number Windward/Leeward High0.9215
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7068
Triple Number Coastal/Long Distance Medium0.9600
Triple Number Coastal/Long Distance High1.1034
Triple Number Windward/Leeward Low0.5453
Triple Number Windward/Leeward Medium0.7756
Triple Number Windward/Leeward High0.9215
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Predominantly Upwind669.10.8968
Predominantly Downwind659.40.9099
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance688.30.8718
Triple Number Coastal/Long Distance Low848.90.7068
Triple Number Coastal/Long Distance Medium625.00.9600
Triple Number Coastal/Long Distance High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1238.4912.6742.8643.1591.3554.2498.9
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low848.90.7068
Triple Number All Purpose Medium625.00.9600
Triple Number All Purpose High543.81.1034
Triple Number Windward/Leeward Low1100.30.5453
Triple Number Windward/Leeward Medium773.60.7756
Triple Number Windward/Leeward High651.10.9215
Predominantly Upwind669.10.8968
Predominantly Downwind659.40.9099
Predominantly Upwind Low914.20.6563
Predominantly Upwind Medium678.60.8842
Predominantly Upwind High624.40.9609
Predominantly Downwind Low968.90.6193
Predominantly Downwind Medium662.30.9059
Predominantly Downwind High527.61.1372
Chicago-Mac Upwind0.8788
Chicago-Mac All Purpose0.8835
Chicago-Mac Downwind0.8901
Bayview-Mac Cove Island0.8158
Bayview-Mac Shore0.8338
Harvest Moon Regatta541.41.1082
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy641.40.9354
San Francisco Bay Medium769.00.7802
Predominantly Reaching598.61.0023
Predominantly Reaching Low773.50.7757
Predominantly Reaching Medium597.71.0038
Predominantly Reaching High510.71.1749
Windward/Leeward 60-40 Low1091.60.5497
Windward/Leeward 60-40 Medium785.80.7635
Windward/Leeward 60-40 High684.40.8767
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1211.40.4953
5-Band Low / Medium994.10.6036
5-Band Medium756.50.7932
5-Band Medium / High662.00.9064
5-Band High629.00.9540
ORC Ref  03440002LSAIssued on 16/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

Prospero

NOR 13987

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassElan 310MeasurementHINPlan reviewHull constructionLightCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.250Max. Beam3.198Draft1.923Displacement4,175Wetted area20.92IMS L9.029LSM08.887Acc. length9.250Sink (kg/mm) 16.35
VCGD0.131VCGM0.158RM Rated (kg·m) 76.6Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.340PBWPIPA0.0038
EDL1.873ST10.065ST20.180
ST30.180ST40.180ST50.329
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P11.980IG11.960ISP12.895MDT10.088MDL10.155MDT20.087MDL20.110TL0.000MW0.144GO0.157
E4.130J3.580BAS1.416FSD0.000SFJ0.000SPL4.386WPLTPS0.000BDMWT102.30MCG4.490
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.131Flotation Date01/01/2015MeasurerComment
SFFP0.375FFMFF1.237LCFcl5.272SG1.0050
SAFP9.161FAMFA0.984LCFsh5.488HBI1.105
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002LSAIssued on 16/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

Prospero

NOR 13987

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment330-2019081215050.120.781.442.563.4428.6512/08/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment329-2010052612100.000.000.000.000.003.8112.15NoNo 23.5626/05/2010330-2019081215060.050.430.851.702.533.2912.00NoNo 20.1712/08/2019
ORC Ref  03440002LSAIssued on 16/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org