SELF-TACK /TRACKS CALCULATOR

UNDER DEVELOPMENT - NOT FOR PRODUCTION

Note: By logging in you may use the result of this calculator into the track-facts registration form

 

Insufficent data

Input

 

Rig info (required)
FH mm Forestay height
J mm Distance forestay chainplate to forward face of mast
HSheave mm Sheet sheave height from mast step (only for sheet through mast) 
Self-tack data
dF mm Track centre forward of mast forward face
LTrack mm Track width end to end

 

 

Output

 

Sheet at deck - single bend
  ° deg Track angle relative deck
RV mm Track curvature ends up

Sheet at deck - double bend
  ° deg Track angle relative deck
RV mm Track curvature ends up
RH mm Track curvature ends forward

Sheet through mast - double bend
  ° deg Track angle relative deck
RV mm Track curvature ends up
RH mm Track curvature ends forward