Club
Certificate
2024

Boat

DIABLO

USA 61666

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 24 kt
Beat Angles42.6°40.5°38.0°36.8°36.4°36.1°36.0°37.2°
Beat VMG3.884.755.285.505.625.695.765.68
52°5.886.947.427.627.737.817.907.89
60°6.177.157.607.827.958.048.168.19
75°6.357.277.738.058.288.438.658.76
90°6.557.497.938.198.478.779.209.49
110°6.417.478.048.569.029.4010.1310.56
120°6.217.418.058.619.129.7210.9512.22
135°5.586.947.748.379.039.8411.8313.62
150°4.725.977.017.708.188.7210.4213.63
Run VMG4.095.176.076.687.097.559.0211.81
Gybe Angles143.2°146.2°149.6°151.2°148.8°146.4°142.6°144.8°
APH ToD:505.0CDL: 10.400APH ToT: 1.1881CertNo:US7221
BOAT
ClassJ 111DesignerA. JOHNSTONEBuilderJ BOATSAge date01/2012Series date01/2010Offset fileJ111.OFFData fileUS7221
HULL
Length Overall11.121 mMaximum Beam3.302 mDraft2.188 mDisplacement4,261 kgDLR4.2953IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.455%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.408m
CREW
Maximum weight686 kg(default)Minimum weight556 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail38.2439.10Headsail Luffed33.5633.56Headsail FlyingSymmetricAsymmetric129.91129.91 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail10.66Storm Jib11.13Heavy Weather Jib30.04
SAIL LIMITS
Headsails6  Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
GL J111 CONFIG
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
2024

Boat

DIABLO

USA 61666

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 24 kt
Beat VMG928.4757.4681.9654.8640.9632.6624.8633.9
52°612.5518.6484.9472.5465.7461.2455.8456.0
60°583.4503.8474.0460.3453.1447.7441.0439.6
75°566.6495.3465.8446.9434.6427.0416.0410.7
90°549.6480.6454.1439.8425.0410.4391.3379.3
110°561.6481.7447.6420.6399.3382.8355.3340.9
120°579.5485.8447.2418.0394.9370.5328.8294.6
135°644.9518.4465.3430.3398.5366.0304.3264.2
150°763.2602.7513.4467.4440.0412.8345.5264.1
Run VMG881.3695.9592.8538.9508.1476.7398.9304.9
Selected Courses
Windward / Leeward904.8726.7637.4596.9574.5554.6511.9469.4
All purpose696.7574.9519.4491.3472.6456.1425.5400.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward620.40.9671
All purpose505.01.1881
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8535
Downwind "popa"1.0263
70% up, 30% down "Ilhabela"0.8989
30% up, 70% down "Ilhabela-inverso"0.9675
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Predominantly Upwind546.41.0981
Predominantly Downwind509.11.1786
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low635.80.9436
Triple Number AP Medium503.01.1928
Triple Number AP High448.71.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Single Number Predominant Upwind545.21.1006
Single Number Predominant Reaching482.01.2449
Single Number Predominant Downwind510.11.1762
Predominant Upwind - Low700.70.8563
Predominant Upwind - Low/Med591.71.0140
Predominant Upwind - Medium532.01.1278
Predominant Upwind - Med/High500.21.1995
Predominant Upwind - High480.61.2484
Predominant Downwind Low694.30.8641
Predominant Downwind Low/Med571.31.0503
Predominant Downwind Medium494.91.2124
Predominant Downwind Med/High439.71.3645
Predominant Downwind High390.81.5352
Predominant Reaching Low620.10.9675
Predominant Reaching Low/Med527.01.1386
Predominant Reaching Medium471.41.2727
Predominant Reaching Med/High431.11.3918
Predominant Reaching High399.51.5018
SA/DSPL Upwind27.19SA/DSPL Downwind63.67
Scoring OptionTODTOT
5-Band Windward/Leeward Low864.40.6941
5-Band Windward/Leeward Low/Med702.30.8544
5-Band Windward/Leeward Medium607.10.9883
5-Band Windward/Leeward Med/High554.31.0825
5-Band Windward/Leeward High511.91.1720
Windward/Leeward 60-40 Low869.40.6901
Windward/Leeward 60-40 Low/Med710.00.8451
Windward/Leeward 60-40 Medium618.40.9703
Windward/Leeward 60-40 Med/High570.31.0520
Windward/Leeward 60-40 High535.11.1213
5-Band AP Low669.10.8967
5-Band AP Low/Med560.91.0696
5-Band AP Medium496.81.2077
5-Band AP Med/High456.71.3138
5-Band AP High426.51.4069
5-Band SF Bay Tour - Low821.50.7304
5-Band SF Bay Tour - Low/Med671.70.8933
5-Band SF Bay Tour - Medium584.41.0268
5-Band SF Bay Tour - Med/High535.11.1212
5-Band SF Bay Tour - High497.51.2060
Chicago-Mac Upwind1.0806
Chicago-Mac All Purpose1.1165
Chicago-Mac Downwind1.1595
Bayview-Mac Cove Island1.0421
Bayview-Mac Shore1.0494
Harvest Moon Regatta437.91.3701
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance548.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9436
Triple Number Coastal/Long Distance Medium1.1930
Triple Number Coastal/Long Distance High1.3370
Triple Number Windward/Leeward Low0.7355
Triple Number Windward/Leeward Medium0.9747
Triple Number Windward/Leeward High1.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low635.9
Triple Number Coastal/Long Distance Medium502.9
Triple Number Coastal/Long Distance High448.8
Triple Number Windward/Leeward Low815.8
Triple Number Windward/Leeward Medium615.6
Triple Number Windward/Leeward High543.6
Predominantly Upwind546.4
Predominantly Downwind509.1
Predominantly Reaching488.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9436
Triple Number Coastal/Long Distance Medium1.1930
Triple Number Coastal/Long Distance High1.3370
Triple Number Windward/Leeward Low0.7355
Triple Number Windward/Leeward Medium0.9747
Triple Number Windward/Leeward High1.1038
Coastal/Long Distance1.0946
Predominantly Upwind1.0981
Predominantly Downwind1.1786
For information
General Purpose Handicap (GPH)564.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9436
Tretall Distanseseilas Mellomvind1.1930
Tretall Distanseseilas Mye vind1.3370
Tretall Pølsebane Lite vind0.7355
Tretall Pølsebane Mellomvind0.9747
Tretall Pølsebane Mye vind1.1038
Distanseseilas ett tall1.1881
Enkeltall Motvind1.0981
Enkeltall Medvind1.1786
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Coastal/Long Distance548.11.0946
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind546.41.0981
Predominantly Downwind509.11.1786
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore482.21.2444
Cape Doctor Coastal408.11.4702
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9436
Triple Number Coastal/Long Distance Medium1.1930
Triple Number Coastal/Long Distance High1.3370
Triple Number Windward/Leeward Low0.7355
Triple Number Windward/Leeward Medium0.9747
Triple Number Windward/Leeward High1.1038
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9436
Triple Number Coastal/Long Distance Medium1.1930
Triple Number Coastal/Long Distance High1.3370
Triple Number Windward/Leeward Low0.7355
Triple Number Windward/Leeward Medium0.9747
Triple Number Windward/Leeward High1.1038
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Predominantly Upwind546.41.0981
Predominantly Downwind509.11.1786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance548.11.0946
Triple Number Coastal/Long Distance Low635.90.9436
Triple Number Coastal/Long Distance Medium502.91.1930
Triple Number Coastal/Long Distance High448.81.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance902.5685.0579.2523.1491.3461.3407.6379.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low635.80.9436
Triple Number AP Medium503.01.1928
Triple Number AP High448.71.3370
Triple Number Windward/Leeward Low815.80.7355
Triple Number Windward/Leeward Medium615.60.9747
Triple Number Windward/Leeward High543.61.1038
Single Number Predominant Upwind545.21.1006
Single Number Predominant Reaching482.01.2449
Single Number Predominant Downwind510.11.1762
Predominant Upwind - Low700.70.8563
Predominant Upwind - Low/Med591.71.0140
Predominant Upwind - Medium532.01.1278
Predominant Upwind - Med/High500.21.1995
Predominant Upwind - High480.61.2484
Predominant Downwind Low694.30.8641
Predominant Downwind Low/Med571.31.0503
Predominant Downwind Medium494.91.2124
Predominant Downwind Med/High439.71.3645
Predominant Downwind High390.81.5352
Predominant Reaching Low620.10.9675
Predominant Reaching Low/Med527.01.1386
Predominant Reaching Medium471.41.2727
Predominant Reaching Med/High431.11.3918
Predominant Reaching High399.51.5018
SA/DSPL Upwind27.19SA/DSPL Downwind63.67
Scoring OptionTODTOT
5-Band Windward/Leeward Low864.40.6941
5-Band Windward/Leeward Low/Med702.30.8544
5-Band Windward/Leeward Medium607.10.9883
5-Band Windward/Leeward Med/High554.31.0825
5-Band Windward/Leeward High511.91.1720
Windward/Leeward 60-40 Low869.40.6901
Windward/Leeward 60-40 Low/Med710.00.8451
Windward/Leeward 60-40 Medium618.40.9703
Windward/Leeward 60-40 Med/High570.31.0520
Windward/Leeward 60-40 High535.11.1213
5-Band AP Low669.10.8967
5-Band AP Low/Med560.91.0696
5-Band AP Medium496.81.2077
5-Band AP Med/High456.71.3138
5-Band AP High426.51.4069
5-Band SF Bay Tour - Low821.50.7304
5-Band SF Bay Tour - Low/Med671.70.8933
5-Band SF Bay Tour - Medium584.41.0268
5-Band SF Bay Tour - Med/High535.11.1212
5-Band SF Bay Tour - High497.51.2060
Chicago-Mac Upwind1.0806
Chicago-Mac All Purpose1.1165
Chicago-Mac Downwind1.1595
Bayview-Mac Cove Island1.0421
Bayview-Mac Shore1.0494
Harvest Moon Regatta437.91.3701

Club
Certificate
2024

Boat

DIABLO

USA 61666

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 111Measurement13/05/2011HINPlan reviewHull constructionCoredCarbon RudderYesLight stanchionsNoTrim tabNo
LOA11.121Max. Beam3.302Draft2.188Displacement4,261Wetted area23.60IMS L10.399LSM09.972Acc. length10.732Sink (kg/mm) 18.21
VCGD-0.189VCGM-0.200RM Rated (kg·m) 114.6Limit of positive stability(°) N/AStability IndexN/ADefault crew weight686Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.408PBW0.125PIPA0.0035
EDL2.253ST10.040ST20.180
ST30.180ST40.113ST50.305
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays0Spreaders2Rotating mastNo
P13.770IG14.740ISP15.670MDT10.110MDL10.170MDT20.080MDL20.110TL1.290MW0.140GO0.190
E4.420J4.220BAS1.680FSD0.030SFJ0.300SPL0.000WPLTPS6.650BD0.130MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date01/06/2011
W188.7W288.7W388.7W488.7
PD1319.0PD2319.0PD3319.0PD4319.0
WD10.320PLM2318.00GSA31.7RSA14314.0RM116.1
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2024

Boat

DIABLO

USA 61666

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentUllman 20190.161.051.873.073.8638.2424/05/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ1-20190.080.681.282.383.384.4514.49NoNo 33.5629/07/2019J2-20190.080.671.272.373.364.4414.49NoNo 33.4029/07/2019
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA2-201818.0014.6016.309.609.42102%129.9114/09/2018A1.5-201817.5515.2516.409.369.9594%129.5322/08/2018code16.2514.4015.336.408.4076%86.84