Re: GEV capabilities

At 12:13 AM 11/18/98 -0000, you wrote:
>On 16 Nov 98, at 17:50, Tony Christney wrote:
>
>> Let's see...
>> 
>> Let's say that an HKP/5 fires a non-rocket assisted 4kg projectile 
>> at 3000m/s (Mach 9.1, I believe that that is quite a bit faster than 
>> current tech...).
>> 
>> If the GEV vehicle firing is 60 tonnes, then the velocity of the 
>> tank after firing (assuming it was initially stationary) would 
>> only be 0.2m/s=0.7km/h. Now, most tanks will have recoil damping 
>> through the use of hydraulics, so this could be reduced even more.
>> 
>
>I think that you will find that due to conservation of momentum that 
>recoil damping does not alter the overall change in velocity of the 
>tank, it serves to make the force act more weakly for a longer 
>period, rather than massively all at once, and tearing the gun off the 
>mount.

DOH!

>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Richard Slattery	      richard@mgkc.demon.co.uk
>This is unparalyzed in the state's history. 
>     Gib Lewis, Texas Speaker of the House
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
       Tony Christney
       acc@questercorp.com

  "If the end user has to worry about how the program was 
   written then there is something wrong with that program"
				  -Bjarne Stroustrup