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% PURPOSE: Set some basic units
% AUTHOR:  Initial; rsm
% DATE:    99/12/14
%
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% Units and Fundamental Constants:
  in2m = .0254;             % Inches to meters.
  d2r  = pi/180;            % Degrees to radians
  r2d  = 180/pi;            % Radians to degrees
  rho  = 1028;              % Density of sea water at 0 Deg C; kg/m^3
  s2kg = 14.59390;          % Slugs to kg
  ft2m = .3048;             % Feet to meters
  sft2kgm2 = 1.355818;      % Slug-ft^2 to kg-m^2
  lbf2n    = 4.448;         % Pounds force to Newtons
  kph2mps  = 1852/3600;     % Knots per hour to meters per sec
  ftlbf2nm = 1.3558179;     % Foot-pounds force to Newton-meters.
  oi2nm    = .0070615516;   % Ounce-inches to Newton-meters.
  m2c= 200*12/in2m;         % Meters-to-counts
  c2m= 1/m2c;               % Counts-to-meters
  g  = 9.806;               % Free-fall acceleration due to gravity; m/sec^2.
  rE = 6371000;             % Earth radius, m.  (Equitorial?)
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