var unitID = "speed";
var defaultUnitIndex = 7;

var units = [
  ["centimeters/minute",          0.00016666666666666666],
  ["centimeters/second",          0.01],
  ["feet/hour",                   0.00008466683600033866],
  ["feet/minute",                 0.00508],
  ["feet/second",                 0.3048],
  ["inches/minute",               0.0004233341800016934],
  ["inches/second",               0.0254],
  ["kilometers/hour",             0.2777777777777778],
  ["kilometers/second",           1000],
  ["knots",                       0.5144444444444444444],
  ["Mach number (ISA/Sea level)", 340.2933],
  ["meters/hour",                 0.0002777777777777778],
  ["meters/minute",               0.016666666666666666],
  ["meters/second [m/s]",         1],
  ["miles/hour",                  0.44704],
  ["miles/minute",                26.8224],
  ["miles/second",                1609.344],
  ["nautical miles/hour",         0.5144444444444444444],
  ["Nm/24hr (Volvo Ocean Race)",  0.0214351851851851851],
  ["speed of light",              2.9979e8],
  ["yards/hour",                  0.000254000508001016],
  ["yards/minute",                0.01524],
  ["yards/second",                0.9144]
];