Club
Certificate
2023

Boat

MONGO

USA 40250

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles41.2°39.6°37.6°36.4°35.8°35.7°35.2°
Beat VMG3.784.525.025.255.375.445.52
52°5.636.526.987.207.317.387.45
60°5.876.697.117.347.467.547.63
75°5.986.787.207.477.667.797.94
90°5.836.707.177.487.727.928.22
110°5.526.637.247.637.948.218.66
120°5.376.487.167.597.948.258.88
135°4.885.996.817.327.708.078.81
150°4.145.246.176.877.337.698.36
Run VMG3.594.545.356.066.657.147.83
Gybe Angles145.1°150.2°152.3°158.2°170.0°177.2°179.0°

APH: 551.2

CDL: 9.457

GPH: 615.9

CertNo: US7309

BOAT
ClassNortheast 39DesignerRob BallBuilderC&C CustomAge date04/1985Series date01/1984Offset fileNORTHEAST39.offData fileUSA40250
HULL
Length Overall11.918 mMaximum Beam3.880 mDraft2.401 mDisplacement6,757 kgDLR8.8553IMS DivisionCruiser/RacerDynamic Allowance0.120%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 2 bladesDiameter0.419m
CREW
Maximum weight1,000 kgMinimum weight750 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail36.6837.31Headsail Luffed57.8457.84Headsail FlyingSymmetric112.12112.12Asymmetric94.1694.16 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail10.37Storm Jib12.97Heavy Weather Jib35.01
SAIL LIMITS
Headsails5  Spinnakers4 * Asymmetric may be tacked on the pole
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  04560002PIWIssued on 02/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MONGO

USA 40250

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG951.8796.7717.8686.3670.6661.3652.2
52°639.3551.8515.7499.8492.5487.9482.9
60°613.3538.0506.4490.6482.3477.2471.5
75°601.6531.1500.2482.2470.1462.4453.3
90°617.6537.7502.1481.5466.3454.4438.0
110°651.8542.9497.0472.1453.4438.7415.6
120°670.0555.1502.8474.6453.4436.3405.3
135°738.2600.5528.5491.9467.2446.2408.8
150°869.2687.5583.6523.9491.3468.3430.4
Run VMG1003.7793.7672.4594.5541.5504.5459.9
Selected Courses
Windward / Leeward977.8795.2695.1640.4606.1582.9556.1
All purpose760.6632.6567.9533.7512.6497.9477.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward666.90.8997
All purpose551.21.0886
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8176
Downwind "popa"0.9190
70% up, 30% down "Ilhabela"0.8456
30% up, 70% down "Ilhabela-inverso"0.8860
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Predominantly Upwind587.41.0215
Predominantly Downwind566.91.0585
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low696.60.8613
Triple Number All Purpose Medium548.11.0947
Triple Number All Purpose High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Predominantly Upwind587.41.0215
Predominantly Downwind566.91.0585
Predominantly Upwind Low755.20.7945
Predominantly Upwind Medium600.10.9998
Predominantly Upwind High564.21.0635
Predominantly Downwind Low774.70.7745
Predominantly Downwind Medium566.81.0586
Predominantly Downwind High476.11.2602
Chicago-Mac Upwind1.0057
Chicago-Mac All Purpose1.0201
Chicago-Mac Downwind1.0403
Bayview-Mac Cove Island0.9555
Bayview-Mac Shore0.9682
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching529.31.1337
Predominantly Reaching Low638.80.9393
Predominantly Reaching Medium525.71.1413
Predominantly Reaching High468.91.2796
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low963.70.6226
5-Band Low / Medium813.20.7378
5-Band Medium651.80.9205
5-Band Medium / High587.11.0219
5-Band High560.71.0701
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance597.3
Triple Number Coastal/Long Distance Low696.6
Triple Number Coastal/Long Distance Medium548.1
Triple Number Coastal/Long Distance High493.8
Triple Number Windward/Leeward Low886.5
Triple Number Windward/Leeward Medium663.0
Triple Number Windward/Leeward High578.6
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8613
Triple Number Coastal/Long Distance Medium1.0947
Triple Number Coastal/Long Distance High1.2150
Triple Number Windward/Leeward Low0.6768
Triple Number Windward/Leeward Medium0.9050
Triple Number Windward/Leeward High1.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low696.6
Triple Number Coastal/Long Distance Medium548.1
Triple Number Coastal/Long Distance High493.8
Triple Number Windward/Leeward Low886.5
Triple Number Windward/Leeward Medium663.0
Triple Number Windward/Leeward High578.6
Predominantly Upwind587.4
Predominantly Downwind566.9
Predominantly Reaching543.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8613
Triple Number Coastal/Long Distance Medium1.0947
Triple Number Coastal/Long Distance High1.2150
Triple Number Windward/Leeward Low0.6768
Triple Number Windward/Leeward Medium0.9050
Triple Number Windward/Leeward High1.0369
Coastal/Long Distance1.0046
Predominantly Upwind1.0215
Predominantly Downwind1.0585
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8613
Tretall Distanseseilas Mellomvind1.0947
Tretall Distanseseilas Mye vind1.2150
Tretall Pølsebane Lite vind0.6768
Tretall Pølsebane Mellomvind0.9050
Tretall Pølsebane Mye vind1.0369
Distanseseilas ett tall (OSN 8-16kn)1.0046
Distanseseilas ett tall (APH 6-20kn)1.0886
Enkeltall Motvind1.0215
Enkeltall Medvind1.0585
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Coastal/Long Distance597.31.0046
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind587.41.0215
Predominantly Downwind566.91.0585
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore564.11.0636
Cape Doctor Coastal483.41.2411
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8613
Triple Number Coastal/Long Distance Medium1.0947
Triple Number Coastal/Long Distance High1.2150
Triple Number Windward/Leeward Low0.6768
Triple Number Windward/Leeward Medium0.9050
Triple Number Windward/Leeward High1.0369
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8613
Triple Number Coastal/Long Distance Medium1.0947
Triple Number Coastal/Long Distance High1.2150
Triple Number Windward/Leeward Low0.6768
Triple Number Windward/Leeward Medium0.9050
Triple Number Windward/Leeward High1.0369
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Predominantly Upwind587.41.0215
Predominantly Downwind566.91.0585
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance597.31.0046
Triple Number Coastal/Long Distance Low696.60.8613
Triple Number Coastal/Long Distance Medium548.11.0947
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance980.4752.1633.1566.6531.0503.8461.1
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low696.60.8613
Triple Number All Purpose Medium548.11.0947
Triple Number All Purpose High493.81.2150
Triple Number Windward/Leeward Low886.50.6768
Triple Number Windward/Leeward Medium663.00.9050
Triple Number Windward/Leeward High578.61.0369
Predominantly Upwind587.41.0215
Predominantly Downwind566.91.0585
Predominantly Upwind Low755.20.7945
Predominantly Upwind Medium600.10.9998
Predominantly Upwind High564.21.0635
Predominantly Downwind Low774.70.7745
Predominantly Downwind Medium566.81.0586
Predominantly Downwind High476.11.2602
Chicago-Mac Upwind1.0057
Chicago-Mac All Purpose1.0201
Chicago-Mac Downwind1.0403
Bayview-Mac Cove Island0.9555
Bayview-Mac Shore0.9682
Harvest Moon Regatta488.51.2284
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy568.91.0547
San Francisco Bay Medium655.50.9153
Predominantly Reaching529.31.1337
Predominantly Reaching Low638.80.9393
Predominantly Reaching Medium525.71.1413
Predominantly Reaching High468.91.2796
Windward/Leeward 60-40 Low884.10.6787
Windward/Leeward 60-40 Medium676.30.8872
Windward/Leeward 60-40 High606.40.9895
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low963.70.6226
5-Band Low / Medium813.20.7378
5-Band Medium651.80.9205
5-Band Medium / High587.11.0219
5-Band High560.71.0701
ORC Ref  04560002PIWIssued on 02/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MONGO

USA 40250

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassNortheast 39Measurement03/11/2019HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA11.918Max. Beam3.880Draft2.401Displacement6,757Wetted area27.84IMS L9.445LSM09.137Acc. length11.918Sink (kg/mm) 19.26
VCGD-0.137VCGM-0.103RM Rated (kg·m) 154.3Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFeathering 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.419PBW0.110PIPA0.0044
PSD0.027PHD0.046PHL0.179
PSA18.0°ESL0.869
ST10.269ST20.102ST30.139
ST40.051ST50.168
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays2Spreaders3Rotating mastNo
P14.170IG16.000ISP16.000MDT10.125MDL10.200MDT20.104MDL20.150TL1.760MW0.165GO0.195
E4.180J4.690BAS1.737FSD0.035SFJ0.285SPL4.758WPLTPSBD0.182MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered154.3Flotation Date21/07/2021MeasurerComment
SFFP0.813FFMFF1.312LCFcl6.344SG
SAFP10.638FAMFA1.052LCFsh6.628HBI1.127
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560002PIWIssued on 02/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MONGO

USA 40250

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.150.921.652.833.7036.6807/07/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment#1 Genoa0.050.921.863.755.527.2515.70NoNo 57.8407/07/2021SPIN STAYSAIL
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS216.0416.0416.048.428.26112.1220/07/2021
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA116.4513.6915.077.318.2589%94.1630/06/20232023A40250
ORC Ref  04560002PIWIssued on 02/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org