[Milsurplus] Re: Milsurplus digest, Vol 1 #428 - 15 msgs

Sat, 1 Feb 2003 03:14:57 -0600

What everybody missed, is that the YF-12 was going so fast that when the
missile was launched it accelerated to a speed so high that it blew through
the target drone before the fuse could blow it.  This is why they were able
to bring the DRONE back with the holes in the vertical and horizontal
stabilizers.  The plane (YF-12) was too fast.

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Horace W. Hall
Sent: Saturday, February 01, 2003 1:58 AM
To: Kristjan Ragnarson
Cc: MILSURPLUS List
Subject: Re: [Milsurplus] Re: Milsurplus digest, Vol 1 #428 - 15 msgs

>
The starting speed of the bullet/rocket is the speed of the launching
platform. That's why they use multi-stage rockets on space shots.
>

That starting speed may not be sustainable, however, especially for
non-thrusting items such as bullets (which start slowing down as soon as
they leave the muzzle). Even a rocket may not be able to sustain its
launching speed if the launching craft, due to much larger engines &
different aerodynamic design, launches/releases them at or above the speed
the rocket is capable of achieving on its own. Complications of flight
within atmosphere (particularly at very high speeds) prevent the simpler
assumptions of ideal physics cases from being helpful.

--Wayne
  WB4OGM
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