ON RIFLKD GUNS. 



11 



Eq. (25) 



/ + />. - =0.217 + 0.0070 = 0.2840 

 n.l 



1 — /. p. — , = 1.000 — 0.C1 47 = 0.98,53 



71. I 



Eq. (27) 



I #'F 

 ~p~diF 



P-M 



d»i 



0.28884 



A 



_2 

 A, 2 



I 



P 



A. — j— : 

 W. f . /O 



1+0.01: 



0.01 



1.01 



P!=%X S1000 X 144 = 1458000 



^2 



7T" 

 ft 



10.S33 



llllOlba 

 A 



9.4542349 

 a c 0.0004315 



9.4600604 



8.0000032 



3.5003534 



0.3010300 

 6.1637575 

 9.4248816 

 1.0347487 

 6.9254178 



(13) — Next, compute the effective work the torsion strain performed on the projectile 

 during the passage of the latter to the mouth of the piece. For this purpose we have Eq. (5), 

 making y=zl. 



2\ dt ) ~2g l 'n l l r ' 



(323) 



