Non Spin/HSFClub Certificate2025
QUIET WOMANGRE-2249
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
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 Angles47.7°47.7°46.1°44.6°43.2°42.4°42.3°42.7°44.1°
Beat VMG2.133.053.834.444.895.175.295.345.21
52°3.464.866.016.837.397.737.908.007.95
60°3.845.306.437.217.728.038.228.358.35
75°4.095.596.737.507.998.318.558.858.96
90°3.985.496.677.508.038.388.679.189.53
110°3.404.856.117.107.828.298.669.3610.02
120°3.154.555.806.827.608.148.529.249.98
135°2.683.955.156.177.037.718.188.899.60
150°2.243.354.415.316.166.897.518.349.00
Run VMG1.952.903.824.725.576.357.058.108.80
Gybe Angles144.0°144.0°144.9°176.6°178.4°179.3°179.9°179.9°179.8°
APH ToD:578.0CDL: 10.409APH ToT: 1.0380CertNo:02334
BOAT
ClassBAVARIA 45 CRUISERDesignerJAKOPIN & JAKOPINBuilderBAVARIAAge date05/2012Series date01/2005Offset fileBavaria46CruiserSK.offData fileGR2249
HULL
Length Overall13.981Maximum Beam4.422Draft1.751Displacement10,500DLR5.3828IMS DivisionCruiser/RacerDynamic Allowance0.320%Age Allowance0.487%
PROPELLER
InstallationStrutTypeSolid 3 bladesDiameter0.440m
CREW
Maximum weight900(declared)Minimum weight765 ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail51.9152.27Headsail Luffed43.6143.61Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail17.06Storm Jib15.39Heavy Weather Jib41.54
SAIL LIMITS
Headsails1
✱ One set on the forestay
✱ Zero set flying
✱ Woven polyester sails
Spinnakers0
✱ No spinnaker pole aboard
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
Builder's displacement.
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  034200046LIIssued on 24/10/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2025
QUIET WOMANGRE-2249
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
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 VMG1686.41182.1939.0810.8736.2695.7680.3674.6690.9
52°1041.4740.8598.6527.1487.2466.0455.7449.8452.7
60°937.8679.8559.8499.2466.6448.3438.2431.2431.3
75°880.2643.9535.1479.9450.6433.3421.2406.6401.6
90°904.1655.5539.5479.9448.4429.4415.2392.1377.7
110°1058.9742.4589.1506.7460.3434.2415.9384.8359.3
120°1141.3790.7620.2528.2473.7442.5422.4389.7360.8
135°1342.9911.0699.2583.4512.3467.1439.8404.7375.1
150°1610.11076.1816.3677.4584.4522.2479.2431.5400.1
Run VMG1842.21242.6942.6762.7646.2567.1511.0444.3409.2
Selected Courses
Windward / Leeward1763.61212.4940.8786.7691.2631.4595.6559.5550.0
All purpose1303.2907.1714.9611.3548.9511.2488.4463.1451.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward733.20.8183
All purpose578.01.0380
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance638.90.9391
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7344
Downwind "popa"0.8209
70% up, 30% down "Ilhabela"0.7584
30% up, 70% down "Ilhabela-inverso"0.7929
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Predominantly Upwind618.30.9703
Predominantly Downwind606.00.9902
Custom scoring options for Canada
Scoring OptionTODTOT
TriNum AP Low811.00.7398
TriNum AP Med574.21.0449
TriNum AP High484.61.2381
TriNum W/L Low1130.00.5310
TriNum W/L Med728.90.8232
TriNum W/L Hig591.01.0152
Predom. Upwind649.50.9238
Predom. Reaching575.31.0430
Predom. Downwind640.80.9363
Predom. Up Low979.50.6126
Predom. Up L/M705.90.8500
Predom. Up Med589.71.0175
Predom. Up M/H528.81.1346
Predom. Up High510.21.1761
Predom. Dn Low1039.00.5775
Predom. Dn L/M720.40.8329
Predom. Dn Med575.21.0431
Predom. Dn M/H485.71.2354
Predom. Dn High444.81.3489
Predom. Rc Low877.80.6835
Predom. Rc L/M630.10.9522
Predom. Rc Med523.31.1465
Predom. Rc M/H462.01.2988
Predom. Rc High434.61.3805
SA/DSPL Upwind19.77SA/DSPL Downwind19.77
Scoring OptionTODTOT
5B W/L Low1282.50.4678
5B W/L L/M889.60.6744
5B W/L Med709.90.8452
5B W/L M/H603.60.9940
5B W/L High564.11.0637
W/L 60-40 Low1275.50.4704
W/L 60-40 L/M891.70.6729
W/L 60-40 Med718.70.8348
W/L 60-40 M/H620.20.9674
W/L 60-40 High587.01.0222
5B AP Low915.00.6557
5B AP L/M682.20.8795
5B AP Med561.81.0681
5B AP M/H493.11.2169
5B AP High465.51.2889
5B SF Bay Low1088.10.5514
5B SF Bay L/M846.40.7089
5B SF Bay Med682.70.8789
5B SF Bay M/H588.91.0189
5B SF Bay High555.61.0800
Chicago-Mac Upwind0.8845
Chicago-Mac All Purpose0.8940
Chicago-Mac Downwind0.8904
BayMac Cove Island986.60.6082
BayMac Shore975.10.6153
Harvest Moon485.11.2368
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance638.90.9391
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance638.90.9391
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance638.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating638.90.9391
FinRating, kevyt tuuli1258.80.7944
FinRating, kova tuuli468.81.0665
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9391
Triple Number Coastal/Long Distance Low0.7398
Triple Number Coastal/Long Distance Medium1.0451
Triple Number Coastal/Long Distance High1.2381
Triple Number Windward/Leeward Low0.5573
Triple Number Windward/Leeward Medium0.8232
Triple Number Windward/Leeward High1.0152
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
For information
General Purpose Handicap (GPH)662.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance638.90.9391
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance638.90.9391
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance638.90.9391
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low811.0
Triple Number Coastal/Long Distance Medium574.1
Triple Number Coastal/Long Distance High484.6
Triple Number Windward/Leeward Low1076.6
Triple Number Windward/Leeward Medium728.9
Triple Number Windward/Leeward High591.0
Predominantly Upwind618.3
Predominantly Downwind606.0
Predominantly Reaching565.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance638.90.9391
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7398
Triple Number Coastal/Long Distance Medium1.0451
Triple Number Coastal/Long Distance High1.2381
Triple Number Windward/Leeward Low0.5573
Triple Number Windward/Leeward Medium0.8232
Triple Number Windward/Leeward High1.0152
Coastal/Long Distance0.9391
Predominantly Upwind0.9703
Predominantly Downwind0.9902
For information
General Purpose Handicap (GPH)662.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0380
Distanseseilas Trippeltall svak vind0.7398
Distanseseilas Trippeltall mellomvind1.0451
Distanseseilas Trippeltall sterk vind1.2381
Pølsebane Trippeltall svak vind0.5573
Pølsebane Trippeltall mellomvind0.8232
Pølsebane Trippeltall sterk vind1.0152
Motvind Singeltall0.9703
Medvind Singeltall0.9902
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Coastal/Long Distance638.90.9391
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind618.30.9703
Predominantly Downwind606.00.9902
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore552.91.0853
Cape Doctor Coastal455.11.3183
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7398
Triple Number Coastal/Long Distance Medium1.0451
Triple Number Coastal/Long Distance High1.2381
Triple Number Windward/Leeward Low0.5573
Triple Number Windward/Leeward Medium0.8232
Triple Number Windward/Leeward High1.0152
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7398
Triple Number Coastal/Long Distance Medium1.0451
Triple Number Coastal/Long Distance High1.2381
Triple Number Windward/Leeward Low0.5573
Triple Number Windward/Leeward Medium0.8232
Triple Number Windward/Leeward High1.0152
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance638.90.9391
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Predominantly Upwind618.30.9703
Predominantly Downwind606.00.9902
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance638.90.9391
Triple Number Coastal/Long Distance Low811.00.7398
Triple Number Coastal/Long Distance Medium574.11.0451
Triple Number Coastal/Long Distance High484.61.2381
Triple Number Windward/Leeward Low1076.60.5573
Triple Number Windward/Leeward Medium728.90.8232
Triple Number Windward/Leeward High591.01.0152
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1911.41215.4879.5700.0591.3532.7493.4438.7423.6
Custom scoring options for United States of America
Scoring OptionTODTOT
TriNum AP Low811.00.7398
TriNum AP Med574.21.0449
TriNum AP High484.61.2381
TriNum W/L Low1130.00.5310
TriNum W/L Med728.90.8232
TriNum W/L Hig591.01.0152
Predom. Upwind649.50.9238
Predom. Reaching575.31.0430
Predom. Downwind640.80.9363
Predom. Up Low979.50.6126
Predom. Up L/M705.90.8500
Predom. Up Med589.71.0175
Predom. Up M/H528.81.1346
Predom. Up High510.21.1761
Predom. Dn Low1039.00.5775
Predom. Dn L/M720.40.8329
Predom. Dn Med575.21.0431
Predom. Dn M/H485.71.2354
Predom. Dn High444.81.3489
Predom. Rc Low877.80.6835
Predom. Rc L/M630.10.9522
Predom. Rc Med523.31.1465
Predom. Rc M/H462.01.2988
Predom. Rc High434.61.3805
SA/DSPL Upwind19.77SA/DSPL Downwind19.77
Scoring OptionTODTOT
5B W/L Low1282.50.4678
5B W/L L/M889.60.6744
5B W/L Med709.90.8452
5B W/L M/H603.60.9940
5B W/L High564.11.0637
W/L 60-40 Low1275.50.4704
W/L 60-40 L/M891.70.6729
W/L 60-40 Med718.70.8348
W/L 60-40 M/H620.20.9674
W/L 60-40 High587.01.0222
5B AP Low915.00.6557
5B AP L/M682.20.8795
5B AP Med561.81.0681
5B AP M/H493.11.2169
5B AP High465.51.2889
5B SF Bay Low1088.10.5514
5B SF Bay L/M846.40.7089
5B SF Bay Med682.70.8789
5B SF Bay M/H588.91.0189
5B SF Bay High555.61.0800
Chicago-Mac Upwind0.8845
Chicago-Mac All Purpose0.8940
Chicago-Mac Downwind0.8904
BayMac Cove Island986.60.6082
BayMac Shore975.10.6153
Harvest Moon485.11.2368
ORC Ref  034200046LIIssued on 24/10/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2025
QUIET WOMANGRE-2249
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassBAVARIA 45 CRUISERMeasurement13/10/2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA13.981Max. Beam4.422Draft1.751Displacement10,500Wetted area39.47IMS L12.589LSM012.493Acc. length13.981Sink (kg/mm) 32.30
VCGD0.197VCGM0.287RM Rated (kg·m) 329.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight946Declared crew weight900
PROPELLER
Propeller TypeSolid 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.440PBW0.171PIPA0.0235
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P16.950IG17.540ISPMDT10.145MDL10.265MDT2MDL2TLNo TaperMWGO
E5.750J5.480BAS1.890FSD0.045SFJSPLWPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2013
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  034200046LIIssued on 24/10/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2025
QUIET WOMANGRE-2249
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.090.881.633.244.4551.9112/10/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.040.571.142.423.875.4117.08NoNo 43.6112/10/2025
CRUISER/RACER REQUIREMENTS*
Accommodation length14.0 mTable area0.66 m²Headroom1.89 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity240 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity130 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  034200046LIIssued on 24/10/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org