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US Sailing Universal Measurement System (UMS) Measurer Seminar HPR Measurement & Processing
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2 HPR Measured Items - Hull Possible Source HULL / FLOTATION / WEIGHT DATA IRCORR Age Date XX Length Overall 1 LOAXX Forward Overhang 2 FOX Height of Transom 3 YX Stem to Forward Freeboard StationSFFP X Stem to Aft Freeboard StationSAFP X Freeboard Forward MeasuredFFM X Freeboard Aft MeasuredFAM X Freeboard at Fore Side of Mast 4 FBI Freeboard at Maximum Draft 1 FMD Specific GravitySG X Displacement as Weighed 1, 5 DSPWXX Maximum Beam 1 MBXX Station of Maximum Draft 1 SDM Deepest Point of Keel to Sheerline 1 DMT Measured Draft 8 DHKMXX Keel Weight 5 KW Keel Vertical Center of Gravity 5 KCG Crew WeightCW
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3 HPR Measured Items - Rig Possible Source RIG DATA IRCORR Foretriangle BaseJXX Mainsail HoistPXX Mainsail FootEXX Height of Headsail HoistIG X Height of Spinnaker HoistISP X Tacking Point of Spinnaker 6 TPSXX Spinnaker Pole Length 6, 7 SPLXX Boom Aft Sheeting LimitBAL X Boom DepthBD X Boom Above SheerlineBAS X Forestay PerpendicularFSP X Chainplate WidthCPW Chainplate DiagonalCPD Mast Weight 5 MWT X Mast Vertical Center of Gravity 5 MCG X Boom Weight 5 BWT No. of Running Backstays / Checkstays XX No. of Spreader Pairs XX
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4 HPR Measured Items - Sails Possible Source MAINSAIL IRCORR Mainsail Top WidthHB X Mainsail 7/8 WidthMGTXX Mainsail 3/4 WidthMGUXX Mainsail 1/2 WidthMGMXX Mainsail 1/4 WidthMGL X HEADSAIL Headsail LuffJLXX Headsail PerpendicularLPGXX Headsail Top WidthJH Headsail 7/8 WidthJGTX Headsail 3/4 WidthJGUXX Headsail 1/2 WidthJGMXX Headsail 1/4 WidthJGL X ASYMMETRIC SPINNAKER Asymmetric LuffSLUXX Asymmetric LeechSLEXX Asymmetric Mid WidthAMGXX Asymmetric FootASFXX SYMMETRIC SPINNAKER Symmetric Luff / Leech 7 SLXX Spinnaker Mid Width 7 SMGX Spinnaker Foot 7 SFXX
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5 HPR Measured Items - Other FLAGS Twin RuddersRUD2 Production Sail/Shaft Drive InstalledPSP Hull and Deck, High Modulus MaterialHDHM Spars, High Modulus MaterialSPHM Production BoatESOC Component Method used for VCGKEEL Lifting without SlingsLEYE 1 Measurement required if the boat does not have an offset file 2 FO - Credit for 2012 and earlier for raked stems, if not entered stem is assumed vertical 3 Y - Only required for immersed transoms 2013 and later 4 FBI - Always measure when measuring FFM/FAM; sometimes can be calculated from ORR/ORCi 5 Measurement required if VCG to be determined via component method - Measurement of all 6 items - DSPW, KW, KCG, MWT, MCG and BWT are required if using component method 6 Either TPS or SPL, but not both 7 Symmetric spinnakers and pole only applicable for boats with Age Date 2012 or earlier 8 Measured draft DHKM = DMT - FMD or as measured for Endorsed IRC certificate
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6 HPR Measured Items - FO FO - Forward Overhang -if the bow knuckle is above the waterline, FO shall be the horizontal distance from the forward end of LOA to the point where a 45 degree angle intersects the knuckle -if the bow knuckle is below the waterline, FO equals the horizontal distance from the forward end of LOA to the intersection of the stem with the waterline IMS B6.10 Note: With exposed knuckle, FO is independent of trim/float condition Note: FO = IRC BO - IRC x
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7 HPR Measured Items - FBI FBI - Freeboard at Fore Side of Mast -the average of port and starboard freeboards measured vertically from the sheer point to the water level at the section at the fore side of the mast IMS B6.8 Point to Measure FBI
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8 HPR Measured Items - CPW / CPD CPW - Chainplate Width - the distance between the centers of the bearing points of the chainplates for the upper shrouds of the mainmast IMS F6.3 / F6.4 CPD - Chainplate Diagonal - the distance between the center of the bearing point of the chainplate for the upper shrouds to the mainmast centerline
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9 HPR Measurement Requirements - Vcg Source Component Method - Full hull measurement in empty lightship condition --Length, beam, draft, overhangs, freeboards -- Weigh boat -- Weigh keel/bulb and determine cg - Full rig measurement - plus mast weight/cg and boom weight - Full sail measurement Incline Method - Verified offsets file required - Incline and measure freeboards in empty lightship condition -- Weighing highly desireable - Full rig measurement - Full sail measurement
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10 HPR Measurement Requirements Never Rated under any Rule -- Full Measurement: - Vcg via Component Method - Vcg via Incline Method Boats with Fully Measured ORR certificate: - Vcg (lightship): --Direct from ORR incline/float data if boat measured in lightship condition --Calculated from ORR incline/float data if boat measured in ORR trim IF complete Measurement Inventory with weights and location is available -- Otherwise, new freeboards required (but not incline) - In-water: FBI and Y measured in lightship - Rig: CPD, CPW measured - Sails: Additional headsail dimensions required Boats with Endorsed* IRC certificate: - Vcg via Incline Method or Component Method - In-water: FFM, FAM, FBI measured in lightship - Rig: IG, ISP, BAS, BD, FSP, CPD, CPW measured - Sails: Additional mainsail and headsail dimensions required * Endorsed with scale weight or DSPM and measured hull data IRC One Design certificates are Endorsed but not weighed and measured There are a few IRC Endorsed certificates based on RORC Standard Hull Data Talk to Offshore first - Confirm what data is on file - Confirm what data needs to be measured
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11 HPR Processing Flow Inputs from Measurer Component Method Pre-processing -Vcg moment calculation from individual hull, keel/bulb, mast and boom weights and cgs -Measurement trim freeboard calculation Incline Method Pre-processing (lightship) - VPP run -- Vcg -- Measurement trim freeboard calculation -- Weight and draft Incline Method Pre-processing (ORR trim) -Vcg moment calculation with Measurement Inventory data -Empty weight calculation -VPP run -- Measurement trim freeboard calculation -- Draft HPR Calculator Hull Measurements Rig and Sail Measurements Hull Measurements and Calculations
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12 HPR Calculator and Certificate NameBEECOMHAMACHIRACER XROCK & ROLLTAI KUAIWHIPLASHWICKED SISTER Owner Anatole MasfenGreg SlyngstadGary RedelbergerBernard GirodDaniel ThielmanDonald PayanJOHN CORDA Class TP52J125Farr 36 ODFarr 400R/P 44MC 38Farr 36 OD Cert 2014 Big Boat Series Sail Number JPN5535USA13696USA6USA400USA7676USA38100USA3 Issue Date LOA15.85012.52710.96012.20013.30011.28011.000 FO0.0100.3700.1100.0380.0300.0000.110 Y0.0500.1000.070 0.1900.0600.080 Watermark Age Date2011199820062011200320112004 BM4.4203.1943.5703.4103.5503.5203.582 FF1.4911.2921.2081.3751.4391.0281.217 FBI1.2060.9931.0901.2991.3210.9431.095 FA1.1330.7930.8620.9241.1140.7180.865 DRA3.3482.4792.6192.8943.3402.8002.613 VCG incline-1.191-0.469-0.322-0.627-1.047-0.618-0.536 CW1297.0835.0715.0800.0994.0718.0728.0 Dempty7296.04239.73313.03991.05935.03275.03220.0 Spars J 8.7004.4713.9804.4704.9004.5904.010 P 20.40014.18215.22016.15017.74016.50015.219 E 7.1105.4685.6805.8006.4004.9905.707 IG 22.40014.94414.33015.56917.08015.87314.261 ISP 20.40015.87416.73217.86219.74717.78216.787 BAL 0.1520.0000.1640.000 0.168 BD 0.3350.1620.1670.000 0.1980.176 BAS 2.1301.5181.4131.5951.9011.3221.386 FSP 0.0540.0640.0540.0710.0640.0000.070 CPD 0.135 1.6910.135 CPW 113.0171111 MWT 301.0140.2157.0166.5 140 MCG 7.9505.0575.1205.355 6.039 BWT 13.6 Runners 0000000 Spreaders 3222322 TPS 8.7006.6326.4776.8206.7107.0506.451 Mainsail HB 1.2430.2050.1701.0000.2301.2600.180 MGT 2.2381.2801.4901.7101.6001.8601.540 MGU 3.2262.2502.5612.5502.4902.6502.600 MGM 4.7593.6903.9253.8603.9103.6803.920 MGL 6.0174.6504.8804.8905.1704.4004.870 Jib Jib luff19.93814.16014.36015.98016.82016.16014.450 LPG 6.2506.8904.2024.4904.9004.6704.200 JH0.1400.1000.0700.1200.1250.1200.080 JGT 0.9660.8850.6240.7400.7900.7400.650 JGU 1.7671.7201.1991.3101.3901.3401.180 JGM 3.2363.4302.2922.7002.5302.5502.230 JGL 4.7065.1403.2713.4403.7303.6503.230 Ayso SLU 25.30018.28018.85020.36022.00020.44019.200 SLE 21.03016.27016.35017.45019.50017.48016.650 AMG 13.53911.27011.03811.14011.31011.62010.470 ASF 13.54511.98010.84811.56011.50012.00010.900
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