Re: FT-MT missiles

----- Original Message -----
From: Beth Fulton <beth.fulton@marine.csiro.au>
To: <gzg-l@csua.berkeley.edu>
Sent: Monday, May 14, 2001 2:54 AM
Subject: Re: FT-MT missiles

> G'day Bif,
>
>  >Instead, how about having the missiles move at their
>  >launching ships starting speed, and accelelerate as they move
>
> Derek's already mentioned the potential problems with this, but
> restrictions on maneuverability may help.... unfortunately I got
completely
> lost in your explanations (muddle headed today sorry).
>
> Could you give me some examples please
>
> Thanks
>
> Beth
>
Try imagining a triangle, with the point as the starting position at the
start of the turn. Then move the missile marker it`s starting speed in a
strieght line. Then have a circle, 12 mu in diameter (I said 6 mu first
time, if I say the missile has 12 mu of thrust, the circle would have a
diameter od 12 mu). The missile can be placed anywhere in this circle,
and
it direction it is now facing is a line between its starting position
and
it`s ending position. The speed the missile would have at the start of
the
next turn would be the distance between the starting position and the
ending
position. The triangle comes from the turn radius posible, based on it`s
speed (on the vertical/x axis), and the 12 mu placement radius
(horizontal/y
axis).
			  C
			   'Y
A-------X-------B

A=STARTING POSITION
B=POSITION OF RADIUS PLACE MARKER
C=MISSILES FURTHEST LATERAL POSITION
X=STARTING SPEED
Y=RADIUS MARKER

The above example is if you weren`t to increase the speed, but instead
try
to maneuver the missile laterally (or turn it). If the starting speed
was 48
mu(x axis), and the missile was placed at it`s furthest point
laterally(y
axis), the angle between A and C would be smaller compaired to if the
starting speed was less. This is just a way to try and limit the turnung
angle to represent the delta v involved in changing the heading at high
speed.

Hope this makes (some) sense.

BIF

"Yorkshire born, yorkshire bred,
strong in arms, thick in head"