Non Spin/HSFClub Certificate2026
ATHENAUSA 312
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 Angles45.5°42.8°40.8°39.4°38.5°37.6°37.5°37.2°37.5°
Beat VMG2.062.973.634.104.474.744.925.065.09
52°3.224.495.345.956.396.696.887.057.10
60°3.434.705.566.166.586.867.047.247.31
75°3.574.835.696.326.747.027.227.497.67
90°3.454.725.606.276.747.057.277.647.95
110°3.094.395.356.106.677.057.327.838.23
120°2.904.195.165.926.526.947.247.768.21
135°2.523.734.715.486.136.647.007.528.02
150°2.123.204.154.955.616.196.657.267.74
Run VMG1.842.773.604.345.005.606.126.927.41
Gybe Angles143.9°147.7°152.3°159.7°169.4°173.6°176.3°179.0°179.5°
APH ToD:648.0CDL: 7.927APH ToT: 0.9259CertNo:US312-40
BOAT
ClassBlock Island 40DesignerTRIPPBuilderMetalMastAge date05/1972Series date03/1957Offset fileblockisland40-USA3184.offData fileUS312-40
HULL
Length Overall12.369 mMaximum Beam3.542 mDraft2.734 mDisplacement9,517 kgDLR15.4599IMS DivisionCruiser/RacerDynamic Allowance0.700%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationIn ApertureTypeFeathering 2 bladesDiameter0.452m
CREW
Maximum weight830 kg(declared)Minimum weight700 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail29.8430.19Headsail Luffed43.0943.09Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail9.63Storm Jib9.29Heavy Weather Jib25.07
SAIL LIMITS
Headsails1
✱ One set on the forestay
✱ Zero set flying
✱ Woven polyester sails
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting Moment 150.0 kg·m Stability Index 122.6
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  04560004OOO Issued on 06/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
ATHENAUSA 312
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 VMG1746.21213.5992.9877.4804.6758.8732.2711.6707.8
52°1119.8802.4673.8604.7563.2537.8523.0510.7507.1
60°1049.3765.6647.7584.6547.1524.6511.0497.5492.7
75°1008.2745.2632.3569.8534.0512.9499.0480.6469.6
90°1043.6762.0643.0574.5534.4510.8495.0470.9452.7
110°1166.6819.3673.3590.5539.9510.7491.6459.9437.6
120°1241.3859.2698.2608.2552.3518.5497.3464.0438.4
135°1428.5964.7764.0656.4587.6542.2514.0478.7448.7
150°1696.21126.2867.2727.6641.2581.8541.0496.0465.2
Run VMG1958.71300.4999.3829.2719.5643.3588.1520.5486.0
Selected Courses
Windward / Leeward1852.41256.9996.1853.3762.1701.1660.2616.0596.9
All purpose1398.0968.9784.5683.7621.1581.2555.3525.7508.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward798.80.7512
All purpose648.00.9259
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance707.40.8481
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6895
Downwind "popa"0.7499
70% up, 30% down "Ilhabela"0.7066
30% up, 70% down "Ilhabela-inverso"0.7307
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Predominantly Upwind689.40.8703
Predominantly Downwind679.10.8835
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP673.10.8914 Predom. Rc High505.11.1879 5B SF Bay L/M903.00.6644 TriNum AP Low876.70.6844 Predom. Dn Low1112.20.5395 5B SF Bay Med749.90.8001 TriNum AP Med645.70.9292 Predom. Dn L/M791.00.7586 5B SF Bay M/H652.00.9203 TriNum AP High550.71.0895 Predom. Dn Med649.80.9234 5B SF Bay High610.50.9828 TriNum W/L Low1184.80.5064 Predom. Dn M/H559.21.0730 5B AP Low994.20.6035 TriNum W/L Med796.70.7531 Predom. Dn High515.81.1633 5B AP L/M752.00.7979 TriNum W/L Hig653.90.9176 ChiMac Up Low905.10.6629 5B AP Med633.00.9479 Predom. Upwind719.50.8339 ChiMac Up Med801.50.7486 5B AP M/H560.21.0710 Predom. Reaching653.40.9182 ChiMac Up High680.70.8815 5B AP High527.91.1365 Predom. Downwind714.80.8394 ChiMac Off Low937.40.6401 5B W/L Low1340.60.4476 Predom. Up Low1047.10.5730 ChiMac Off Med811.00.7398 5B W/L L/M949.60.6318 Predom. Up L/M776.60.7726 ChiMac Off High662.50.9057 5B W/L Med778.10.7712 Predom. Up Med662.80.9052 ChiMac AP Low915.50.6554 5B W/L M/H668.20.8979 Predom. Up M/H595.11.0082 ChiMac AP Med802.10.7481 5B W/L High620.40.9672 Predom. Up High568.41.0555 ChiMac AP High668.90.8970 W/L 60-40 Low1330.80.4509 Predom. Rc Low961.00.6244 BayMac Cove Island1060.50.5658 W/L 60-40 L/M951.10.6309 Predom. Rc L/M709.30.8459 BayMac Shore1049.50.5717 W/L 60-40 Med786.20.7632 Predom. Rc Med601.70.9972 Harvest Moon568.71.0550 W/L 60-40 M/H682.50.8792 Predom. Rc M/H535.91.1197 5B SF Bay Low1116.20.5375 W/L 60-40 High639.20.9387      SA/DSPL Up16.12SA/DSPL Dn16.12
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance707.40.8481
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance707.40.8481
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance707.4
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating707.40.8481
FinRating, kevyt tuuli1327.90.7531
FinRating, kova tuuli532.80.9385
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8481
Triple Number Coastal/Long Distance Low0.6844
Triple Number Coastal/Long Distance Medium0.9294
Triple Number Coastal/Long Distance High1.0895
Triple Number Windward/Leeward Low0.5326
Triple Number Windward/Leeward Medium0.7531
Triple Number Windward/Leeward High0.9176
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
For information
General Purpose Handicap (GPH)736.2
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance707.40.8481
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Saronikos S All Purpose741.40.8093
Saronikos S Upwind818.80.7328
Saronikos S Downwind667.00.8995
Saronikos N All Purpose781.80.7675
Saronikos N Upwind853.00.7034
Saronikos N Downwind744.20.8062
Saronikos SW All Purpose759.40.7901
Saronikos SW Upwind852.10.7042
Saronikos SW Downwind685.50.8753
Saronikos NE All Purpose827.50.7250
Saronikos NE Upwind805.60.7448
Saronikos NE Downwind852.90.7035
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose673.10.8914
5-Band All Purpose Low1072.80.5593
5-Band All Purpose L/M780.30.7690
5-Band All Purpose Med654.10.9172
5-Band All Purpose M/H575.81.0420
5-Band All Purpose High540.91.1093
Single Number Predominant Upwind687.70.8724
Single Number Predominant Reaching625.30.9596
Single Number Predominant Downwind680.00.8824
5-Band 50-50 Windward/Leeward Low1340.60.4476
5-Band 50-50 Windward/Leeward L/M949.60.6318
5-Band 50-50 Windward/Leeward Med778.10.7712
5-Band 50-50 Windward/Leeward M/H668.20.8979
5-Band 50-50 Windward/Leeward High620.40.9672
5-Band 60-40 Windward/Leeward Low1330.80.4509
5-Band 60-40 Windward/Leeward L/M951.10.6309
5-Band 60-40 Windward/Leeward Med786.20.7632
5-Band 60-40 Windward/Leeward M/H682.50.8792
5-Band 60-40 Windward/Leeward High639.20.9387
Triple Number 50-50 Windward/Leeward Low1184.80.5064
Triple Number 50-50 Windward/Leeward Med796.90.7530
Triple Number 50-50 Windward/Leeward High653.80.9176
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward806.50.7440
Triple Number 60-40 Windward/Leeward Low1179.10.5089
Triple Number 60-40 Windward/Leeward Med804.10.7461
Triple Number 60-40 Windward/Leeward High669.30.8965
Triple Number All-Purpose Low955.80.6278
Triple Number All-Purpose Med667.70.8986
Triple Number All-Purpose High565.51.0610
Triple Number Predominant Upwind Low949.90.6316
Triple Number Predominant Upwind Med679.40.8832
Triple Number Predominant Upwind High589.11.0184
Triple Number Predominant Reaching Low864.40.6941
Triple Number Predominant Reaching Med622.50.9639
Triple Number Predominant Reaching High517.81.1587
Triple Number Predominant Downwind Low981.50.6113
Triple Number Predominant Downwind Med668.10.8981
Triple Number Predominant Downwind High540.11.1110
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance707.40.8481
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance707.40.8481
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low876.7
Triple Number Coastal/Long Distance Medium645.6
Triple Number Coastal/Long Distance High550.7
Triple Number Windward/Leeward Low1126.5
Triple Number Windward/Leeward Medium796.7
Triple Number Windward/Leeward High653.9
Predominantly Upwind689.4
Predominantly Downwind679.1
Predominantly Reaching642.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance707.40.8481
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6844
Triple Number Coastal/Long Distance Medium0.9294
Triple Number Coastal/Long Distance High1.0895
Triple Number Windward/Leeward Low0.5326
Triple Number Windward/Leeward Medium0.7531
Triple Number Windward/Leeward High0.9176
Coastal/Long Distance0.8481
Predominantly Upwind0.8703
Predominantly Downwind0.8835
For information
General Purpose Handicap (GPH)736.2
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9259
Distanseseilas Trippeltall svak vind0.6844
Distanseseilas Trippeltall mellomvind0.9294
Distanseseilas Trippeltall sterk vind1.0895
Pølsebane Trippeltall svak vind0.5326
Pølsebane Trippeltall mellomvind0.7531
Pølsebane Trippeltall sterk vind0.9176
Motvind Singeltall0.8703
Medvind Singeltall0.8835
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Coastal/Long Distance707.40.8481
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind689.40.8703
Predominantly Downwind679.10.8835
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore602.70.9956
Cape Doctor Coastal513.91.1676
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6844
Triple Number Coastal/Long Distance Medium0.9294
Triple Number Coastal/Long Distance High1.0895
Triple Number Windward/Leeward Low0.5326
Triple Number Windward/Leeward Medium0.7531
Triple Number Windward/Leeward High0.9176
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6844
Triple Number Coastal/Long Distance Medium0.9294
Triple Number Coastal/Long Distance High1.0895
Triple Number Windward/Leeward Low0.5326
Triple Number Windward/Leeward Medium0.7531
Triple Number Windward/Leeward High0.9176
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance707.40.8481
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Predominantly Upwind689.40.8703
Predominantly Downwind679.10.8835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance707.40.8481
Triple Number Coastal/Long Distance Low876.70.6844
Triple Number Coastal/Long Distance Medium645.60.9294
Triple Number Coastal/Long Distance High550.71.0895
Triple Number Windward/Leeward Low1126.50.5326
Triple Number Windward/Leeward Medium796.70.7531
Triple Number Windward/Leeward High653.90.9176
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1863.11261.3939.7770.3663.8603.8562.3507.4489.2
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP673.10.8914 Predom. Dn High515.81.1633 5B AP M/H560.21.0710 TriNum AP Low876.70.6844 Predom. Rc Low961.00.6244 5B AP High527.91.1365 TriNum AP Med645.70.9292 Predom. Rc L/M709.30.8459 5B SF Bay Low1116.20.5375 TriNum AP High550.71.0895 Predom. Rc Med601.70.9972 5B SF Bay L/M903.00.6644 TriNum W/L Low1184.80.5064 Predom. Rc M/H535.91.1197 5B SF Bay Med749.90.8001 TriNum W/L Med796.70.7531 Predom. Rc High505.11.1879 5B SF Bay M/H652.00.9203 TriNum W/L Hig653.90.9176 5B W/L Low1340.60.4476 5B SF Bay High610.50.9828 Predom. Upwind719.50.8339 5B W/L L/M949.60.6318 ChiMac Up Low905.10.6629 Predom. Reaching653.40.9182 5B W/L Med778.10.7712 ChiMac Up Med801.50.7486 Predom. Downwind714.80.8394 5B W/L M/H668.20.8979 ChiMac Up High680.70.8815 Predom. Up Low1047.10.5730 5B W/L High620.40.9672 ChiMac Off Low937.40.6401 Predom. Up L/M776.60.7726 W/L 60-40 Low1330.80.4509 ChiMac Off Med811.00.7398 Predom. Up Med662.80.9052 W/L 60-40 L/M951.10.6309 ChiMac Off High662.50.9057 Predom. Up M/H595.11.0082 W/L 60-40 Med786.20.7632 ChiMac AP Low915.50.6554 Predom. Up High568.41.0555 W/L 60-40 M/H682.50.8792 ChiMac AP Med802.10.7481 Predom. Dn Low1112.20.5395 W/L 60-40 High639.20.9387 ChiMac AP High668.90.8970 Predom. Dn L/M791.00.7586 5B AP Low994.20.6035 BayMac Cove Island1060.50.5658 Predom. Dn Med649.80.9234 5B AP L/M752.00.7979 BayMac Shore1049.50.5717 Predom. Dn M/H559.21.0730 5B AP Med633.00.9479 Harvest Moon568.71.0550      SA/DSPL Up16.12SA/DSPL Dn16.12
ORC Ref  04560004OOO Issued on 06/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
ATHENAUSA 312
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassBlock Island 40MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall12.369Maximum beam3.542Draft2.734Displacement9,517Wetted area27.56IMS L8.965LSM08.506Accomod. length11.511Sink (kg/mm) 19.60
VCGD-0.038VCGM-0.031 RM Rated (kg·m) 150.0Limit of positive stability(°) 115.3 Stability Index 122.6 BLR index 0.0000Default crew weight547 Declared crew weight 830
Centerboard weight120.3List angleCanting keel angle
PROPELLER
Propeller TypeFeathering 2 blades
InstallationIn ApertureTwin screwNoHydro generatorNo
PRD0.452PBW0.100PIPA0.0143
APH0.516APT0.186APB0.189
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P12.040IG13.625ISP13.630MDT10.138MDL10.223MDT20.135MDL20.174TL2.960MW0.150GO0.150
E4.570J4.700BAS1.585FSD0.035SFJ-0.043SPL4.400WPLTPSBD0.189MWTMCG
PY0.000MDT1Y0.000MDL1Y0.000MDT2Y0.000MDL2Y0.000TLY0.000BASY0.000EY0.000BDY0.000IY0.000EB0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2013
SFFP0.968FFM1.340FF1.340LCFcl6.742SG
SAFP11.180FAM0.838FA0.838LCFsh6.993HBI1.002
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG4Alloy, centerline in forepeakFuel9501.800.103Fiberglass, stbd centerlineWater19006.20-0.202Fiberglass, port centerlineWater19006.20-0.201Alloy tank on centerline fwd of engineFuel13508.30-0.30Total deductible0
OTHER ITEMSIdKindDescriptionWeightLCGVCG5Battery2x 12V Group 27 lead-acid engine, centerline407.40-0.204Battery12V house Group 27 lead-acid, centerline203.20-0.203Battery12V house AGM Group 31, port centerline under settee305.700.002Battery12V house AGM Group 31, stbd side305.100.006Engine (IC)Westerbeake 44bTotal deductible0
ORC Ref  04560004OOO Issued on 06/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
ATHENAUSA 312
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.150.841.512.613.4329.8402/03/2026212184
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentRF genoa0.080.801.543.094.746.4913.59NoNo 43.0902/03/2026212185
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length11.5 mTable area0.55 m²Headroom1.79 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity138 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity80 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04560004OOO Issued on 06/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org