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155mm L/40 T7
The T7 as mounted on the T30E1 heavy tank
Type Tank gun Place of origin United States Used by United States Produced 1940s Variants T7, T7E1 Mass 2,384 kg (5,256 lb ) Length 6.64 m (21 ft 9 in ) Barrel length6.4276 m (21 ft 1.06 in ) (L/41.4) Caliber 155 mm (6.1 in ) Rate of fire 2 rpm Muzzle velocity 701–1,106 m/s (2,300–3,630 ft/s) Maximum firing range Project cancelled before maximum range tests occurred
The 155mm L/40 T7 was an American rifled tank gun developed in 1945. The T7 was to be the main armament for the T30 Heavy Tank , but only a handful were produced due to the T30 project being cancelled after trials in the late 1940s.
The T7 used two-part separated ammunition like the 105mm T5E1 gun on the T29 Heavy Tank . It had a low velocity of only 701 m/s (2,300 ft/s) compared to the 120mm T53 on the T34 Heavy Tank (945 m/s) and the 105mm T5E1 on the T29 Heavy Tank (945 m/s). However, the 43 kg (95 lbs) High-Explosive shell (HE ) and high-velocity armour-piercing (HVAP) was demonstrated to have a powerful demolition effect. Testing concluded before completion when the T30 project was cancelled in the late 1940s.
Penetration comparison
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Calculated penetration (30 degrees)[4]
Ammunition type
Muzzle velocity
Penetration (mm )
500 m
1000 m
1500 m
2000 m
2500 m
3000 m
M112B1 (AP )
701 m/s (2,300 ft/s)
215
213
203
211
195
187
T43 (Mod.) (AP )
774 m/s (2,540 ft/s)
254
243
236
226
215
203
T35 (HVAP)
1,106 m/s (3,630 ft/s)
392
355
340
314
292
276
M107 (HE )
945 m/s (3,100 ft/s)
85 85 85 85 85 85
Variants
[ edit ]
T7 - Standard model
T7E1 - T7 modified for use with a power rammer and ejection equipment.
References
[ edit ]
^ Bird, Lorrin Rexford; Livingston, Robert D. (2001). WWII Ballistics: Armor and Gunnery . Overmatch Press. p. 61.
Bibliography
[ edit ]
t
e
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=155_mm_gun_T7&oldid=1226385255 " C a t e g o r i e s : ● T a n k g u n s o f t h e U n i t e d S t a t e s ● A r t i l l e r y s t u b s H i d d e n c a t e g o r i e s : ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n i s d i f f e r e n t f r o m W i k i d a t a ● A l l s t u b a r t i c l e s
● T h i s p a g e w a s l a s t e d i t e d o n 3 0 M a y 2 0 2 4 , a t 0 8 : 5 4 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
