Club
Certificate
2021

Boat

AIR FORCE

108

 
Offshore
Racing
Congress

Certificate number: US7202
Rated boat velocities in knots
Wind Velocity6 kt8 kt10 kt12 kt14 kt16 kt20 kt
Beat Angles43.5°43.1°40.1°39.0°39.0°39.2°40.5°
Beat VMG3.283.994.494.634.674.664.58
52°5.086.016.416.586.656.686.68
60°5.436.226.596.866.987.047.06
75°5.706.376.827.257.537.687.78
90°5.766.517.097.668.028.348.73
110°5.536.376.967.658.459.3010.52
120°5.196.216.827.528.339.2411.36
135°4.645.776.447.017.678.5010.84
150°3.844.905.856.487.007.599.15
Run VMG3.334.245.085.776.346.807.90
Gybe Angles145.0°149.0°151.5°162.0°180.0°180.0°179.8°

GPH = 656.9

CDL = 7.273

BOAT
ClassEXPRESS 27𝕚DesignerSCHUMACHERBuilderALSBERGAge Date01/1986Series Date01/1982Offset FileUS18887.OFF
HULL
Length Overall8.309 mMaximum Beam2.463 mDraft1.329 mDisplacement1,075 kgDLR3.2977IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight454 kg𝕚Minimum weight340 kg𝕚* when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRated Mainsail16.9317.37Headsail Luffed19.2619.26Headsail FlyingSymmetric38.87𝕚38.87𝕚Asymmetric37.13𝕚37.13𝕚
* 1 asymmetric(s) with SHW/SFL < 85%
SAIL LIMITATIONS
Headsails5 Spinnakers4 * Asymmetric SHALL NOT be tacked on the pole
STABILITY
Righting Moment21.4 kg·mStability IndexN/A
OWNER




The owner certifies that he/she understands his/her responsibilities under ORC Rule and Regulations.

Club
Certificate
2021

Boat

AIR FORCE

108

 
Offshore
Racing
Congress

Certificate number: US7202
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1096.9901.4802.0777.1771.4772.1785.5
52°708.1598.6561.9547.3541.2538.9539.1
60°662.4578.7545.9524.5515.5511.5510.2
75°631.4564.9528.0496.7478.1468.8462.7
90°624.5553.0507.5470.1449.1431.6412.2
110°651.2565.0517.4470.7426.2387.2342.2
120°693.5579.3527.9478.8431.9389.4317.0
135°775.9624.1558.8513.5469.3423.4332.2
150°937.3735.4615.4555.4513.9474.1393.7
Run VMG1082.3849.2708.8623.9568.2529.4456.0
Selected Courses
Windward / Leeward1089.6875.3755.4700.5669.8650.7620.7
All purpose823.8681.8607.6567.2539.4518.6487.0
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward733.30.8182
All purpose585.21.0254
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Predominantly Upwind639.50.9382
Predominantly Downwind594.51.0092
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low752.80.7970
Triple Number All Purpose Medium583.31.0286
Triple Number All Purpose High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Predominantly Upwind639.50.9382
Predominantly Downwind594.51.0092
Predominantly Upwind Low836.20.7175
Predominantly Upwind Medium661.00.9077
Predominantly Upwind High633.30.9475
Predominantly Downwind Low831.70.7214
Predominantly Downwind Medium593.21.0114
Predominantly Downwind High473.11.2681
Chicago-Mac Upwind0.9230
Chicago-Mac All Purpose0.9564
Chicago-Mac Downwind0.9908
Bayview-Mac Cove Island0.8943
Bayview-Mac Shore0.9038
Victoria-Maui1.0788
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance640.2
Triple Number Coastal/Long Distance Low752.8
Triple Number Coastal/Long Distance Medium583.3
Triple Number Coastal/Long Distance High511.9
Triple Number Windward/Leeward Low982.5
Triple Number Windward/Leeward Medium725.7
Triple Number Windward/Leeward High644.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7970
Triple Number Coastal/Long Distance Medium1.0286
Triple Number Coastal/Long Distance High1.1720
Triple Number Windward/Leeward Low0.6107
Triple Number Windward/Leeward Medium0.8268
Triple Number Windward/Leeward High0.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low752.8
Triple Number Coastal/Long Distance Medium583.3
Triple Number Coastal/Long Distance High511.9
Triple Number Windward/Leeward Low982.5
Triple Number Windward/Leeward Medium725.7
Triple Number Windward/Leeward High644.3
Predominantly Upwind639.5
Predominantly Downwind594.5
Predominantly Reaching563.7
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7970
Triple Number Coastal/Long Distance Medium1.0286
Triple Number Coastal/Long Distance High1.1720
Triple Number Windward/Leeward Low0.6107
Triple Number Windward/Leeward Medium0.8268
Triple Number Windward/Leeward High0.9313
Coastal/Long Distance0.9372
Predominantly Upwind0.9382
Predominantly Downwind1.0092
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)0.9372
Tretall Distanseseilas Lite vind0.7970
Tretall Distanseseilas Mellomvind1.0286
Tretall Distanseseilas Mye vind1.1720
Tretall Pølsebane Lite vind0.6107
Tretall Pølsebane Mellomvind0.8268
Tretall Pølsebane Mye vind0.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind639.50.9382
Predominantly Downwind594.51.0092
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore629.70.9528
Cape Doctor Coastal496.51.2086
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7970
Triple Number Coastal/Long Distance Medium1.0286
Triple Number Coastal/Long Distance High1.1720
Triple Number Windward/Leeward Low0.6107
Triple Number Windward/Leeward Medium0.8268
Triple Number Windward/Leeward High0.9313
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7970
Triple Number Coastal/Long Distance Medium1.0286
Triple Number Coastal/Long Distance High1.1720
Triple Number Windward/Leeward Low0.6107
Triple Number Windward/Leeward Medium0.8268
Triple Number Windward/Leeward High0.9313
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Predominantly Upwind639.50.9382
Predominantly Downwind594.51.0092
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance640.20.9372
Triple Number Coastal/Long Distance Low752.80.7970
Triple Number Coastal/Long Distance Medium583.31.0286
Triple Number Coastal/Long Distance High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1088.8822.5682.6607.5562.9523.4452.7
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low752.80.7970
Triple Number All Purpose Medium583.31.0286
Triple Number All Purpose High511.91.1720
Triple Number Windward/Leeward Low982.50.6107
Triple Number Windward/Leeward Medium725.70.8268
Triple Number Windward/Leeward High644.30.9313
Predominantly Upwind639.50.9382
Predominantly Downwind594.51.0092
Predominantly Upwind Low836.20.7175
Predominantly Upwind Medium661.00.9077
Predominantly Upwind High633.30.9475
Predominantly Downwind Low831.70.7214
Predominantly Downwind Medium593.21.0114
Predominantly Downwind High473.11.2681
Chicago-Mac Upwind0.9230
Chicago-Mac All Purpose0.9564
Chicago-Mac Downwind0.9908
Bayview-Mac Cove Island0.8943
Bayview-Mac Shore0.9038
Harvest Moon Regatta505.51.1869
Victoria-Maui1.0788

Club
Certificate
2021

Boat

AIR FORCE

108

 
Offshore
Racing
Congress

Certificate number: US7202
Data in meters/kilograms (Metric)𝕚
HULL AND APPENDAGES
ClassEXPRESS 27𝕚Measurement𝕚Measurer𝕚HIN𝕚Plan review𝕚Hull constructionCored𝕚Carbon RudderNo𝕚Light stanchionsNo𝕚Trim tabNo𝕚
LOA8.309𝕚Max. Beam2.463𝕚Draft1.329𝕚Displacement1,075𝕚Wetted area10.84𝕚IMS L7.168𝕚LSM06.883𝕚Acc. length8.005𝕚Sink (kg/mm)8.10𝕚
VCGD0.002𝕚VCGM-0.025𝕚RM Measured (kg·m)21.4𝕚RM Default (kg·m)24.2𝕚Limit of positive stability(°)N/AStability IndexN/A
PROPELLER
Propeller TypeNo Propeller𝕚PIPA0.0000𝕚
RIG
Forestay tensionAft𝕚Inner stayNone Fitted𝕚Carbon mastNo𝕚Headsail furlerNo𝕚Mainsail furlerNo𝕚Articulated bowspritNo𝕚Non-circular riggingNo𝕚Fiber riggingNo𝕚Runners/Checkstays0𝕚Spreaders2𝕚
P8.684𝕚IG8.773𝕚ISP8.773𝕚MDT10.078𝕚MDL10.129𝕚MDT20.072𝕚MDL20.091𝕚TL1.379𝕚MW0.091𝕚GO0.203𝕚
E3.170𝕚J2.740𝕚BAS1.150𝕚FSD0.025𝕚SFJ0.336𝕚SPL3.097𝕚TPS3.050𝕚BD0.110𝕚MWT43.60𝕚MCG3.216𝕚
FLOTATION AND STABILITY
Inclining TestVCG entered directly𝕚SFFP0.378𝕚SAFP7.736𝕚Flotation Date𝕚FFM0.912𝕚FAM0.689𝕚Measurer𝕚FF0.929𝕚FA0.696𝕚Comment𝕚LCFcl4.434𝕚LCFsh4.567𝕚SG1.0000𝕚HBI0.876𝕚
MEASUREMENT INVENTORY
IdItemDescriptionWeightLCGVCG

Club
Certificate
2021

Boat

AIR FORCE

108

 
Offshore
Racing
Congress

Certificate number: US7202
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeasurerMeas.DateMakerMaterialComment2449655𝕚0.12𝕚0.70𝕚1.27𝕚2.14𝕚2.74𝕚16.93𝕚𝕚𝕚MIKE BOSTON ULLMAN SAILS DETROIT𝕚𝕚2019 mainsail𝕚
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeasurerMeas.DateMakerMaterialComment1393923𝕚0.05𝕚𝕚1.02𝕚2.08𝕚3.14𝕚4.25𝕚9.15𝕚No𝕚No𝕚 𝕚19.26𝕚𝕚𝕚𝕚𝕚ULLMAN GENOA𝕚
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeasurerMeas.DateMakerMaterialCommentnew𝕚8.68𝕚8.68𝕚8.68𝕚5.39𝕚5.31𝕚38.87𝕚𝕚𝕚𝕚𝕚𝕚
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeasurerMeas.DateMakerMaterialCommentA3𝕚9.05𝕚8.20𝕚8.63𝕚5.08𝕚5.51𝕚92%𝕚37.13𝕚𝕚𝕚𝕚𝕚𝕚A0𝕚9.09𝕚8.55𝕚8.82𝕚3.95𝕚5.25𝕚75%𝕚30.94𝕚𝕚𝕚𝕚𝕚𝕚