On Thu, 11 Jan 2007 00:05:44 +1100, in ,
d&tm wrote:
Its close but is it close enough at greater angles.? what are you using
for the conversion of speed.? I used g =9.8 Pi as 3.14159 and v =
kts *1852/3600 m/s

For conversion of speed, I'm using 6076 ft per nm, 3.14159265358979 for
pi, 9.80665 m/s^2 or 32.17398421 ft/sec^2 for g...

Interestingly on g, I'ver seen sources that quite it as being defined as
9.80665 *exactly* and others that quote it at 32.1740486... Not sure about
the later figure though since it is not exactly correct at least from a
conversion standpoint of the 9.80665 figure using the value of 39.37
inches per meter that I remembered... A quick lookup on the net and I find
that my memory was not correct and the 39.37 was not an *exact* figure...
Plugging in 39.37007874015748 instead and the values agree... For some
reason, I had thought that the 39.37 had been defined as an *exact*
value... Of course this also means that my memory is faulty on the 2.54
cm/in value also...

With regards to higher velocities and decreased values of time for the 360
degree circle, even with a 1 second 360 degree circle and 500 kts, the
values match to more digits than I really need (i.e. 88.26219913 and
88.26219912 degrees respectively for SI and US measurement units)... Yeah,
I would like to have an exact match, but there's probably some conversion
factor that I'm not using enough significant digits with...