Club Certificate2025
AccelerandoFIN5591
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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 Angles41.4°41.4°39.8°38.0°37.4°37.2°37.1°37.4°38.7°
Beat VMG2.543.434.074.454.604.674.714.754.68
52°3.915.125.866.226.396.476.526.606.61
60°4.135.336.016.356.546.646.706.806.84
75°4.245.456.106.466.706.876.987.147.24
90°4.125.346.066.496.776.997.187.477.71
110°3.835.136.026.526.887.217.507.978.36
120°3.634.925.856.406.797.157.508.349.15
135°3.174.405.386.096.536.907.268.119.77
150°2.623.754.765.596.196.596.937.648.67
Run VMG2.263.254.134.905.566.096.497.137.82
Gybe Angles147.1°147.1°152.3°156.8°164.6°173.2°178.3°178.6°177.1°
APH ToD:614.9CDL: 7.153APH ToT: 0.9757CertNo:
BOAT
ClassStill 900DesignerEivind StillBuilderFinn YachtAge date01/1986Series date12/1985Offset fileL4646B.BOFData fileFIN5591
HULL
Length Overall9.010 mMaximum Beam3.132 mDraft1.765 mDisplacement2,508 kgDLR9.4171IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 2 bladesDiameter0.293m
CREW
Maximum weight450 kg(declared)Minimum weight320 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail29.3230.00Headsail Luffed24.6224.62Headsail FlyingSymmetric47.1847.18Asymmetric
STORM SAIL AREAS (m²)
Trysail8.56Storm Jib5.41Heavy Weather Jib14.61
SAIL LIMITS
Headsails5Spinnakers4
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 Certificate2025
AccelerandoFIN5591
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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 VMG1418.31049.4884.4809.0783.3771.5764.4758.4768.7
52°921.7703.2614.6578.5563.4556.5551.9545.7544.2
60°872.3675.0599.0566.5550.4542.4537.1529.4526.1
75°849.3661.0589.8557.0537.1524.0515.9504.1497.1
90°874.6674.3594.3554.3531.9515.0501.1481.7467.2
110°940.8701.5597.9552.4522.9499.6480.1451.7430.4
120°991.6731.2615.2562.2530.0503.4479.8431.4393.3
135°1134.4818.0668.8591.1550.9521.7495.9443.7368.5
150°1375.6959.4755.9643.6581.8546.4519.2471.4415.4
Run VMG1591.11107.8871.0735.3647.1591.3555.0504.8460.2
Selected Courses
Windward / Leeward1502.41078.6877.7772.2715.2681.4659.7631.6614.5
All purpose1135.9836.2700.2632.4596.9574.9558.8533.6512.3
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward744.50.8059
All purpose614.90.9757
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance666.10.9008
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7216
Downwind "popa"0.8379
70% up, 30% down "Ilhabela"0.7530
30% up, 70% down "Ilhabela-inverso"0.7993
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Predominantly Upwind658.80.9107
Predominantly Downwind628.40.9548
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low768.20.7811
Triple Number AP Medium611.90.9805
Triple Number AP High553.41.0843
Triple Number Windward/Leeward Low1020.20.5881
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Single Number Predominant Upwind680.80.8814
Single Number Predominant Reaching612.40.9797
Single Number Predominant Downwind653.90.9176
Predominant Upwind - Low896.00.6696
Predominant Upwind - Low/Med708.50.8469
Predominant Upwind - Medium641.40.9354
Predominant Upwind - Med/High607.90.9871
Predominant Upwind - High590.61.0159
Predominant Downwind Low941.20.6375
Predominant Downwind Low/Med707.20.8484
Predominant Downwind Medium608.20.9866
Predominant Downwind Med/High545.51.1000
Predominant Downwind High504.71.1887
Predominant Reaching Low822.40.7296
Predominant Reaching Low/Med647.00.9273
Predominant Reaching Medium578.31.0374
Predominant Reaching Med/High535.51.1204
Predominant Reaching High506.21.1853
SA/DSPL Upwind29.13SA/DSPL Downwind41.32
Scoring OptionTODTOT
5-Band Windward/Leeward Low1134.90.5287
5-Band Windward/Leeward Low/Med846.10.7091
5-Band Windward/Leeward Medium727.90.8243
5-Band Windward/Leeward Med/High663.30.9046
5-Band Windward/Leeward High633.50.9471
Windward/Leeward 60-40 Low1128.00.5319
Windward/Leeward 60-40 Low/Med850.30.7056
Windward/Leeward 60-40 Medium740.80.8100
Windward/Leeward 60-40 Med/High683.80.8774
Windward/Leeward 60-40 High659.00.9104
5-Band AP Low848.10.7075
5-Band AP Low/Med681.10.8810
5-Band AP Medium604.50.9925
5-Band AP Med/High560.51.0706
5-Band AP High534.31.1230
5-Band SF Bay Tour - Low979.60.6125
5-Band SF Bay Tour - Low/Med810.10.7407
5-Band SF Bay Tour - Medium706.10.8497
5-Band SF Bay Tour - Med/High650.20.9227
5-Band SF Bay Tour - High621.60.9652
Chicago-Mac Upwind0.8588
Chicago-Mac All Purpose0.8754
Chicago-Mac Downwind0.8857
Bayview-Mac Cove Island0.6559
Bayview-Mac Shore0.6618
Harvest Moon Regatta540.51.1101
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance666.10.9008
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance666.10.9008
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance666.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating666.10.9008
FinRating, kevyt tuuli1116.80.8955
FinRating, kova tuuli536.20.9325
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9008
Triple Number Coastal/Long Distance Low0.7811
Triple Number Coastal/Long Distance Medium0.9806
Triple Number Coastal/Long Distance High1.0843
Triple Number Windward/Leeward Low0.6134
Triple Number Windward/Leeward Medium0.8116
Triple Number Windward/Leeward High0.9166
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
For information
General Purpose Handicap (GPH)685.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance666.10.9008
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance666.10.9008
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance666.10.9008
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low768.1
Triple Number Coastal/Long Distance Medium611.9
Triple Number Coastal/Long Distance High553.4
Triple Number Windward/Leeward Low978.2
Triple Number Windward/Leeward Medium739.3
Triple Number Windward/Leeward High654.6
Predominantly Upwind658.8
Predominantly Downwind628.4
Predominantly Reaching603.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance666.10.9008
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7811
Triple Number Coastal/Long Distance Medium0.9806
Triple Number Coastal/Long Distance High1.0843
Triple Number Windward/Leeward Low0.6134
Triple Number Windward/Leeward Medium0.8116
Triple Number Windward/Leeward High0.9166
Coastal/Long Distance0.9008
Predominantly Upwind0.9107
Predominantly Downwind0.9548
For information
General Purpose Handicap (GPH)685.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9757
Distanseseilas Trippeltall svak vind0.7811
Distanseseilas Trippeltall mellomvind0.9806
Distanseseilas Trippeltall sterk vind1.0843
Pølsebane Trippeltall svak vind0.6134
Pølsebane Trippeltall mellomvind0.8116
Pølsebane Trippeltall sterk vind0.9166
Motvind Singeltall0.9107
Medvind Singeltall0.9548
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Coastal/Long Distance666.10.9008
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind658.80.9107
Predominantly Downwind628.40.9548
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore619.60.9684
Cape Doctor Coastal518.71.1567
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7811
Triple Number Coastal/Long Distance Medium0.9806
Triple Number Coastal/Long Distance High1.0843
Triple Number Windward/Leeward Low0.6134
Triple Number Windward/Leeward Medium0.8116
Triple Number Windward/Leeward High0.9166
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7811
Triple Number Coastal/Long Distance Medium0.9806
Triple Number Coastal/Long Distance High1.0843
Triple Number Windward/Leeward Low0.6134
Triple Number Windward/Leeward Medium0.8116
Triple Number Windward/Leeward High0.9166
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance666.10.9008
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Predominantly Upwind658.80.9107
Predominantly Downwind628.40.9548
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance666.10.9008
Triple Number Coastal/Long Distance Low768.10.7811
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High553.41.0843
Triple Number Windward/Leeward Low978.20.6134
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1600.71081.5830.4704.2634.6596.2564.8510.0487.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low768.20.7811
Triple Number AP Medium611.90.9805
Triple Number AP High553.41.0843
Triple Number Windward/Leeward Low1020.20.5881
Triple Number Windward/Leeward Medium739.30.8116
Triple Number Windward/Leeward High654.60.9166
Single Number Predominant Upwind680.80.8814
Single Number Predominant Reaching612.40.9797
Single Number Predominant Downwind653.90.9176
Predominant Upwind - Low896.00.6696
Predominant Upwind - Low/Med708.50.8469
Predominant Upwind - Medium641.40.9354
Predominant Upwind - Med/High607.90.9871
Predominant Upwind - High590.61.0159
Predominant Downwind Low941.20.6375
Predominant Downwind Low/Med707.20.8484
Predominant Downwind Medium608.20.9866
Predominant Downwind Med/High545.51.1000
Predominant Downwind High504.71.1887
Predominant Reaching Low822.40.7296
Predominant Reaching Low/Med647.00.9273
Predominant Reaching Medium578.31.0374
Predominant Reaching Med/High535.51.1204
Predominant Reaching High506.21.1853
SA/DSPL Upwind29.13SA/DSPL Downwind41.32
Scoring OptionTODTOT
5-Band Windward/Leeward Low1134.90.5287
5-Band Windward/Leeward Low/Med846.10.7091
5-Band Windward/Leeward Medium727.90.8243
5-Band Windward/Leeward Med/High663.30.9046
5-Band Windward/Leeward High633.50.9471
Windward/Leeward 60-40 Low1128.00.5319
Windward/Leeward 60-40 Low/Med850.30.7056
Windward/Leeward 60-40 Medium740.80.8100
Windward/Leeward 60-40 Med/High683.80.8774
Windward/Leeward 60-40 High659.00.9104
5-Band AP Low848.10.7075
5-Band AP Low/Med681.10.8810
5-Band AP Medium604.50.9925
5-Band AP Med/High560.51.0706
5-Band AP High534.31.1230
5-Band SF Bay Tour - Low979.60.6125
5-Band SF Bay Tour - Low/Med810.10.7407
5-Band SF Bay Tour - Medium706.10.8497
5-Band SF Bay Tour - Med/High650.20.9227
5-Band SF Bay Tour - High621.60.9652
Chicago-Mac Upwind0.8588
Chicago-Mac All Purpose0.8754
Chicago-Mac Downwind0.8857
Bayview-Mac Cove Island0.6559
Bayview-Mac Shore0.6618
Harvest Moon Regatta540.51.1101
Club Certificate2025
AccelerandoFIN5591
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassStill 900MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.010Max. Beam3.132Draft1.765Displacement2,508Wetted area14.80IMS L7.038LSM06.433Acc. length8.909Sink (kg/mm) 11.24
VCGD-0.039VCGM0.042RM Rated (kg·m) 52.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight367Declared crew weight450
PROPELLER
Propeller TypeFeathering 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.293PBW0.075PIPA0.0070
PSD0.025PHD6.000PHL0.200
PSA16.0°ESL0.800
ST10.024ST20.080ST30.115
ST40.045ST50.220
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays2CheckstaysSpreaders2Rotating mastNo
P11.500IG10.400ISP10.400MDT10.090MDL10.125MDT20.080MDL20.086TL1.900MW0.125GO0.125
E4.250J3.095BAS1.410FSD0.031SFJ0.000SPL3.100WPLTPS0.000BD0.140MWT69.70MCG4.038
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date30/01/2020
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
AccelerandoFIN5591
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.150.871.592.763.6529.3212/03/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment24.6510.40NoNo 24.6212/03/2023
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment110.1910.1910.195.5547.18