Re: Safe Speeds [FT]

Thomas,

Great stuff there.  We do a similar thing in flying with poor
visibility.
Though we base ours on the ability to turn at least 90 degrees to avoid
the
obstacle.  Seems like your calculations could use that instead (I know
you
mention it I am just wondering what that would do to Vmax for Vector and
Cinematic.

Magic

----- Original Message -----
From: <kaladorn@fox.nstn.ca>
To: GZG List (E-mail) <gzg-l@CSUA.Berkeley.EDU>
Sent: Monday, December 13, 1999 12:29 PM
Subject: Safe Speeds [FT]

> Just a general comment on FT speeds:
>
> People like Oerjan are incredible (no, don't blush!) - flies fast, and
> measures distances like 0.2 mus when an MU is a cm... (that's be 2
> mm - a tough call). But what are reasonable speed limitations?
>
> Here is an answer for all you captains who wish to avoid courts of
> inquiry followed by flogging...
>
> Assume we have the formula
> S(t) = Vo*t + 0.5 * A * t^2  where S is distance, t is time, Vo is
> initial velocity, and A is acceleration - a very standard Newtonian
> thing. This describes the movment of a ship from some initial value of
> time, based on velocity at that point, plus acceleration.

Lots of good stuff snipped

> So, let's plug in some numbers I vaguely recall, but might not be
> right. I seem to recall seeing sensor ranges of 54" and 72". And
> thrusts are typically 2/4/6.
>
> So, if we assume 54"
> Th-2 Vmaxsafe = 14
> Th-4 Vmaxsafe = 20
> Th-6 Vmaxsafe = 25
>
> If we assume 72"
> Th-2 Vmaxsafe = 16
> Th-4 Vmaxsafe = 24
> Th-6 Vmaxsafe = 41
>