ORC club certificate scoring

http://orc.org/index.asp?id=44 contains various attributes of sailing yachts with ORC certificate. Especially the velocity prediction programme (VPP) data is interesting to estimate boat speed.

This tool presents the data in a table and a 'polar diagram'

Columns in .rms file:

for <tws>: [6, 8, 10, 12, 14, 16, 20]

for <twa>: [52, 60, 75, 90, 110, 120, 135, 150]

General

• NATCERTN.FILE_ID
• SAILNUMB sail number
• NAME boat name
• TYPE boat type
• BUILDER boat builder
• DESIGNER boat designer
• YEAR Series year
• CLUB
• OWNER name of owner
• ADRS1
• ADRS2
• C_Type Club or international
• DD_MM_yyYY HH:MM:SS Issued on
• ReferenceNo

Hull

• D IMS Division, one of 'C' (Cruiser/Racer), 'S' (Sportboat) or 'R' (Racer)
• LOA Length over all (meters)
• IMSL IMS Sailing Length
• CDL Class Division Length
• DRAFT Draft (meters)
• BMAX Maximum beam (meters)
• DSPL Displacement (kg)
• DSPS Displacement in sailing trim (kg)
• CREW Crew weight (kg)
• WSS Wetted surface (m²)
• INDEX Stability Index
• DA Dynamic Allowance

Sails

• MAIN Maximum main sail area (m²)
• GENOA Maximum genoa area (m²)
• SYM Maximum symmetrical spinnaker area (m²)
• ASYM Maximum asymmetrical spinnaker area (m²)

Scoring

• GPH General purpose handicap
• OSN Offshore Single Number (Time-on-Distance)
• ILCGA Time-on-Distance (inshore, single number)
• TMF-OF Time Multiplying Factor (offshore)
• TMF Time Multiplying Factor (inshore)
• PLT-O Performance Line Time-on-Time Offshore
• PLD-O Performance Line Time-on-Distance Offshore
• PLT-I Performance Line Time-on-Time Inshore
• PLD-I Performance Line Time-on-Distance Inshore
• OTNLOW Offshore triple number low
• OTNMED Offshore triple number mid
• OTNHIG Offshore triple number high
• ITNLOW Inshore triple number low
• ITNMED Inshore triple number mid
• ITNHIG Inshore triple number high
• DH_TOD Double Handed Time-on-Distance (offshore)
• DH_TOT Double Handed Time-on-Time (offshore)
• PLT2H Performance Line, Time-on-Time, Double Handed
• PLD2H Performance Line, Time-on-Distance, Double Handed

Velocity Prediction

• UA<tws> optimal beat angle @tws (true wind angle)
• DA<tws> optimal gybe angle @tws (true wind angle)
• UP<tws> Beat VMG @tws (s/Nautical mile)
• R<twa><tws> Time allowance @twa/@tws (s/Nautical mile)
• D<tws> Run VMG @tws (s/Nautical mile)

Selected Courses

• WL<tws> Windward / Leeward @tws
• OL<tws> ?? @tws
• CR<tws> Circular random @tws
• NSP<tws> Non spinnaker circular random @tws
• OC<tws> Ocean for Performance Curve Scoring (PCS) @tws

Links

• Uitleg over certificaat op orc.org
• OpenCPN book: weather routing plugin
• Collapse sidebar (http://www.bootply.com/mL7j0aOINa)
• Bootstrap toggle switch (interpolation on/off) http://www.bootstraptoggle.com/

Update data

• Update year in Makefile, scoring.py and site/src/App.svelte.
• Download new data: make json
• Tranfrom json's to site format: make site
• Update year in site, update bundle (npm run bundle) en commit.

TODO

• allow switching between polar and cartesian axis
• allow comparing two boats side by side