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Forums - Research / Post-WW2

This Post WW2 forum is intended for asking and discussing reference or historical related issues pertaining to any time after WW2 (1945+) subjects.
Topics  1373
Messages  4962
 Subject:  Re: 105mm versus 120 smoothboreList thread.  
  
 Date:  May 20, 2001
 From:  Haydn Neal 
Andy was pretty well correct, as well as previous post regarding a bigger HESH or HEAT capacity. But primarily to get a faster penetrator round!

As armour effectiveness increased the use of fin stabilised rounds saw a trend to smoothbore - ie finned penetrators are less accurate when a spin is imparted (thru rifling effect on the sabot) Therefore slipping drive bands actually HESH and HEAT are also degraded by spin.

Trials have been undertaken with a 140mm barrel, but you start hitting design constraints - bigger round, more recoil, bigger turret ring, bigger overall vehicle, more weight and on and on..
Also there are limits of tradiional propellants - theoretical speed of exploding gases. blah blah blah.
 
Thread Listing 
  105mm versus 120 smoothbore - Graham - May 17, 2001
. . . Re: 105mm versus 120 smoothbore - Steve Tyliszczak - May 17, 2001
. . . Re: 105mm versus 120 smoothbore - Axel Ackens - May 17, 2001
. . . Re: 105mm versus 120 smoothbore - David Nickels - May 18, 2001
. . . Re: 105mm versus 120 smoothbore - Andreas J. Elesky - May 18, 2001
. . . . . . Re: 105mm versus 120 smoothbore - Haydn Neal - May 20, 2001
. . . Re: 105mm Rif vs 120mm SB - Don't forget HEAT - Nemanja Pavlovic - May 18, 2001
. . . Re: 105mm versus 120 smoothbore - Kurt Isbrecht - May 19, 2001
. . . . . . Re: 105mm versus 120 smoothbore - Lawrence Salerno - May 19, 2001
. . . . . . . . . Re: 105mm versus 120 smoothbore - Andreas J. Elesky - May 19, 2001
. . . . . . . . . . . . Re: 105mm versus 120 smoothbore - Shooty - May 21, 2001
. . . . . . . . . . . . . . . Re: 105mm versus 120 smoothbore - Lawrence Salerno - May 22, 2001
. . . . . . . . . . . . . . . . . . Re: 105mm versus 120 smoothbore - Graeme - May 22, 2001
. . . . . . . . . . . . . . . . . . . . . Re: 105mm versus 120 smoothbore - Kurt Laughlin - May 23, 2001
. . . . . . . . . . . . . . . . . . . . . . . . Re: 105mm versus 120 smoothbore - Tuve B - May 23, 2001
. . . Re: 105mm versus 120 smoothbore-logistics - mark hazzard - May 22, 2001
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