Club
Certificate
2022

Boat

Viuhti

FIN-9314

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles44.2°42.4°42.3°41.7°40.6°40.2°40.2°
Beat VMG3.253.904.414.724.864.934.94
52°5.015.936.596.897.017.077.09
60°5.346.266.827.087.217.277.31
75°5.606.526.987.247.427.557.67
90°5.546.507.017.297.517.718.05
110°5.356.497.117.457.758.008.33
120°5.216.347.037.407.738.088.67
135°4.745.816.707.187.517.858.62
150°4.045.106.006.767.197.508.17
Run VMG3.504.425.215.946.547.027.63
Gybe Angles145.7°150.2°152.0°156.5°168.2°177.2°179.0°

APH: 582.1

CDL: 8.629

GPH: 653.4

CertNo:

BOAT
ClassRidas 35DesignerLönngrenBuilderRidas YachtAge date01/2002Series date06/1997Offset fileridas35mod.offData fileL-9314
HULL
Length Overall10.546 mMaximum Beam3.624 mDraft1.744 mDisplacement6,362 kgDLR7.2163IMS DivisionCruiser/RacerDynamic Allowance0.221%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.450m
CREW
Maximum weight600 kgMinimum weight450 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail31.5732.01Headsail Luffed43.3643.36Headsail FlyingSymmetric86.7186.71Asymmetric
STORM SAIL AREAS (m²)
Trysail9.61Storm Jib10.85Heavy Weather Jib29.30
SAIL LIMITS
Headsails1 * Woven polyester sails  Spinnakers4
STABILITY
Righting Moment114.0 kg·mStability 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
2022

Boat

Viuhti

FIN-9314

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1106.7922.0816.8762.7740.6730.9728.6
52°718.0607.6546.1522.2513.6509.5507.5
60°674.4574.9528.0508.5499.6495.5492.5
75°643.0552.3515.4497.2485.0476.9469.6
90°650.4553.5513.7494.1479.5466.8447.0
110°672.4554.7506.6483.3464.6449.7432.1
120°690.9567.7511.9486.3465.5445.4415.2
135°759.4619.4537.2501.5479.5458.4417.6
150°891.1706.2599.7532.6500.9480.2440.6
Run VMG1029.0815.2691.3606.4550.5513.0471.8
Selected Courses
Windward / Leeward1067.8868.6754.1684.5645.6622.0600.2
All purpose820.8677.6601.3560.2537.5522.7504.1
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward717.80.8359
All purpose582.11.0307
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.7231
Downwind "popa"0.8980
70% up, 30% down "Ilhabela"0.7680
30% up, 70% down "Ilhabela-inverso"0.8372
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Predominantly Upwind631.80.9496
Predominantly Downwind589.21.0184
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low749.20.8009
Triple Number All Purpose Medium578.01.0380
Triple Number All Purpose High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Predominantly Upwind631.80.9496
Predominantly Downwind589.21.0184
Predominantly Upwind Low841.60.7129
Predominantly Upwind Medium653.00.9188
Predominantly Upwind High608.30.9864
Predominantly Downwind Low813.40.7377
Predominantly Downwind Medium582.01.0309
Predominantly Downwind High488.81.2276
Chicago-Mac Upwind0.9321
Chicago-Mac All Purpose0.9632
Chicago-Mac Downwind1.0012
Bayview-Mac Cove Island0.8961
Bayview-Mac Shore0.9026
Victoria-Maui1.0710
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance634.8
Triple Number Coastal/Long Distance Low749.2
Triple Number Coastal/Long Distance Medium578.0
Triple Number Coastal/Long Distance High519.4
Triple Number Windward/Leeward Low968.2
Triple Number Windward/Leeward Medium713.4
Triple Number Windward/Leeward High619.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8009
Triple Number Coastal/Long Distance Medium1.0380
Triple Number Coastal/Long Distance High1.1551
Triple Number Windward/Leeward Low0.6197
Triple Number Windward/Leeward Medium0.8411
Triple Number Windward/Leeward High0.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low749.2
Triple Number Coastal/Long Distance Medium578.0
Triple Number Coastal/Long Distance High519.4
Triple Number Windward/Leeward Low968.2
Triple Number Windward/Leeward Medium713.4
Triple Number Windward/Leeward High619.7
Predominantly Upwind631.8
Predominantly Downwind589.2
Predominantly Reaching565.4
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8009
Triple Number Coastal/Long Distance Medium1.0380
Triple Number Coastal/Long Distance High1.1551
Triple Number Windward/Leeward Low0.6197
Triple Number Windward/Leeward Medium0.8411
Triple Number Windward/Leeward High0.9682
Coastal/Long Distance0.9452
Predominantly Upwind0.9496
Predominantly Downwind1.0184
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)0.9452
Tretall Distanseseilas Lite vind0.8009
Tretall Distanseseilas Mellomvind1.0380
Tretall Distanseseilas Mye vind1.1551
Tretall Pølsebane Lite vind0.6197
Tretall Pølsebane Mellomvind0.8411
Tretall Pølsebane Mye vind0.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Coastal/Long Distance634.80.9452
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind631.80.9496
Predominantly Downwind589.21.0184
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore606.70.9889
Cape Doctor Coastal509.71.1771
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8009
Triple Number Coastal/Long Distance Medium1.0380
Triple Number Coastal/Long Distance High1.1551
Triple Number Windward/Leeward Low0.6197
Triple Number Windward/Leeward Medium0.8411
Triple Number Windward/Leeward High0.9682
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8009
Triple Number Coastal/Long Distance Medium1.0380
Triple Number Coastal/Long Distance High1.1551
Triple Number Windward/Leeward Low0.6197
Triple Number Windward/Leeward Medium0.8411
Triple Number Windward/Leeward High0.9682
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Predominantly Upwind631.80.9496
Predominantly Downwind589.21.0184
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance634.80.9452
Triple Number Coastal/Long Distance Low749.20.8009
Triple Number Coastal/Long Distance Medium578.01.0380
Triple Number Coastal/Long Distance High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.0815.0678.5598.3557.9527.7480.4
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low749.20.8009
Triple Number All Purpose Medium578.01.0380
Triple Number All Purpose High519.41.1551
Triple Number Windward/Leeward Low968.20.6197
Triple Number Windward/Leeward Medium713.40.8411
Triple Number Windward/Leeward High619.70.9682
Predominantly Upwind631.80.9496
Predominantly Downwind589.21.0184
Predominantly Upwind Low841.60.7129
Predominantly Upwind Medium653.00.9188
Predominantly Upwind High608.30.9864
Predominantly Downwind Low813.40.7377
Predominantly Downwind Medium582.01.0309
Predominantly Downwind High488.81.2276
Chicago-Mac Upwind0.9321
Chicago-Mac All Purpose0.9632
Chicago-Mac Downwind1.0012
Bayview-Mac Cove Island0.8961
Bayview-Mac Shore0.9026
Harvest Moon Regatta512.51.1708
Victoria-Maui1.0710
5-Band
Windward/Leeward
Time On DistanceTime On Time
5-Band Low1052.50.5701
5-Band Low / Medium886.00.6772
5-Band Medium699.80.8574
5-Band Medium / High627.60.9561
5-Band High604.00.9934

Club
Certificate
2022

Boat

Viuhti

FIN-9314

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassRidas 35MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.546Max. Beam3.624Draft1.744Displacement6,362Wetted area25.75IMS L9.592LSM09.588Acc. length10.546Sink (kg/mm) 19.23
VCGD0.217VCGM0.147RM Measured (kg·m) 114.0RM Default (kg·m) 124.2Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.450PBWPIPA0.0034
EDL1.000ST10.042ST20.180
ST30.180ST40.112ST50.300
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2
P13.020IG14.638ISP14.598MDT10.113MDL10.185MDT20.113MDL20.185TL0.000MW0.185GO0.210
E4.215J4.005BAS1.448FSD0.030SFJ0.000SPL4.085WPLTPSBD0.200MWT165.00MCG4.660
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date01/06/2003MeasurerComment
SFFP0.550FFMFF1.126LCFcl5.719SG1.0050
SAFP9.246FAMFA0.947LCFsh5.995HBI1.050
W181.5W281.5W381.5W481.5
PD1608.4PD2608.4PD3608.4PD4608.4
WD10.810PLM9000.00GSA1.0RSA1.0
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2022

Boat

Viuhti

FIN-9314

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateMakerMaterialComment20.150.821.462.563.4931.57* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateMakerMaterialComment15.58NoNo 43.36* Copied from legacy *
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateMakerMaterialComment113.3513.3513.357.767.9386.71* Copied from legacy *