|
|
[DISCLAIMER: The following text and illustrations are reproduced from a U.S. War Department
pamphlet published in January 1945. The text may be inaccurate, and no attempt has been
made to update or correct the material. Any views or opinions expressed do not necessarily
represent those of the website.]
|
|
ARMOR-PIERCING AMMUNITION FOR GUN, 90-mm, M3
OFFICE OF THE CHIEF OF ORDNANCE WASHINGTON, D.C.
JANUARY 1945
|
INTRODUCTION
Various models of the latest enemy Armored Force Vehicles encountered
and captured on the battlefield were shipped to the Ordnance Research
and Development Center, Aberdeen, Maryland, for tests and examination.
Ballistic tests revealed the need for armor piercing ammunition with
greater penetrative power to defeat the thick oblique armor plate being
used. Immediate steps were taken to provide our troops with ammunition
for the 90mm guns which possess the required penetrative ability. Three
armor piercing rounds for the Gun, 90mm, M3 have been developed and a
detailed description of each and comparative penetration performances
are presented in this brochure.
TABLE OF CONTENTS
| | Page |
Shot, Fixed, H.V., A.P.-T., 90mm, T30E16 |
Text | .............................................. | 1 |
Text | .............................................. | 2 |
Illustration of complete round | .............................................. | 2 |
Illustration of shot | .............................................. | 3 |
Firing Table | .............................................. | 3 |
Illustration: Penetration of gun mantlet of "Panther" Tank | .............................................. | 4 |
Illustration: Penetration of glacis plate of "Panther" Tank | .............................................. | 4 |
Illustration: Penetration of lower nose plate of "Panther" Tank | .............................................. | 5 |
Armor Penetration Curve | .............................................. | 5 |
|
Shot, Fixed, A.P.-T., 90mm, T33 |
Text | .............................................. | 6 |
Illustration of complete round | .............................................. | 7 |
Illustration of shot | .............................................. | 7 |
Firing Table | .............................................. | 8 |
Firing Table | .............................................. | 9 |
Illustration: Penetration of glacis plate of "Panther" Tank | .............................................. | 10 |
Illustration: Penetration of glacis plate of "Panther" Tank | .............................................. | 11 |
Armor Penetration Curve | .............................................. | 11 |
|
Projectile, Fixed, A.P.C.-T., 90mm, M82 |
Text | .............................................. | 12 |
Illustration of complete round | .............................................. | 13 |
Illustration of projectile | .............................................. | 13 |
Firing Table | .............................................. | 14 |
Firing Table | .............................................. | 15 |
Illustration: Penetration 2½ in. armor plate (55° obliq.) | .............................................. | 16 |
Illustration: Penetration 2½ in. armor plate (55° obliq.) | .............................................. | 16 |
Illustration: Penetration 1½ in. armor plate (55° obliq.) | .............................................. | 16 |
Armor Penetration Curve | .............................................. | 17 |
|
General |
Illustration: Comparison of complete rounds | .............................................. | 17 |
Aiming Data Chart 90-B-1 | .............................................. | 18 |
Aiming Data Chart 90-C-3 | .............................................. | 18 |
SHOT, FIXED, H.V., A.P.-T., 90mm, T30E16.
DESCRIPTION. The Shot, H.V., A.P.-T., 90mm, T30E16
is issued as a fixed complete round for the Gun, 90mm, M3
mounted in Gun Motor Carriage, M36 or M36B1 and
Heavy Tank, T26E3. The shot is a light weight projectile,
consisting of a tungsten carbide core, aluminum body with
nose plug and windshield and steel base tracer loaded.
Length: |
Shot | | 13.20 in. |
Complete Round | | 35.90 in. |
Weight: |
Shot | | 16.70 lb. |
Complete Round | | 36.00 lb. (Approx.) |
Muzzle Velocity | | 3,350 f/s |
PURPOSE. This is a special hyper-velocity, armor piercing
round for attack of heavily armored vehicles. It gives greatly
increased penetrative performance up to 2,000 yards range
over the standard A.P.C.-T., Projectile, 90mm, M82. It is
especially effective at shorter ranges. Since tungsten carbide
is a critical material these projectiles should be used sparingly
and only when the situation requires increased armor
penetration. This shot will penetrate all plates of the German
Pz Kpfw V "Panther" and "King Tiger" Tanks. IT WILL
DEFEAT THE GLACIS PLATE OF THE "PANTHER" AT RANGES
UP TO 450 YARDS AND OF THE "KING TIGER" AT 100 YARDS
RANGE. UP TO RANGES OF 800 YARDS THE SHOT WILL
PENETRATE THE GUN MANTLET AND TURRET FRONT OF
BOTH THE "PANTHER" AND "KING TIGER" TANKS.
FIRING DATA. a. Aiming data charts are provided for
use with the fire control instruments on the Gun Motor
Carriages, M36 and M36B1 and, Heavy Tank, T26E3.
The use of these charts provides direct fire with the following rounds:
Shot, A.P.-T., T33 |
Shot, H.V., A.P.-T., T30E16 |
Projectile, A.P.C.-T., M82 |
Shell, H.E., M71 |
b. The following aiming data charts are contained in this brochure:
A.D.C. 90-B-1, 90mm Gun, (with muzzle brake) M3 on Heavy Tank, T26E3 with Coaxial Telescope, M71C and Periscope Telescopes, M77F and M80D.
A.D.C. 90-C-3, 90mm Gun, (without muzzle brake) M3 on Gun Motor Carriage, M36 or M36B1 with Coaxial Telescope, M76F.
c. Firing Tables are included in this booklet.
ACCURACY. Accuracy firings from the M3 Gun with the
rounds loaded for a MV of 3,400 f/s have been conducted
with the T30 type shot at a vertical target over a range of
2,100 yards. The extreme horizontal dispersion was 17
inches and the extreme vertical dispersion 30 inches.
PENETRATION. A curve showing the comparison of
penetration vs. range of Projectile, A.P.C.-T., M82 and Shot,
H.V., A.P.-T., T30E16 when fired against homogeneous
armor plate a t 20° and 30° obliquity is contained in this
report. Illustrations are included indicating results obtained
with this shot against the "Panther" tank.
MARKING. Special markings appear on each cartridge
case, container and box in red paint.
HYPERVELOCITY |
MV 3350 F/S |
|
Shot, fixed, H.V., A.P.-T., T30E16 for Gun, 90mm, M3. |
|
Shot, H.V., A.P., 90mm, T30E16.
|
GUN, 90MM, M3. SHOT, H.V., A.P.-T., T30E16. MUZZLE VELOCITY, 3350 F/S. WEIGHT, 16.7 LBS. C7, 1.109.
Range yards | |
Elev. mils | |
Time of Flight seconds | |
Max. Ord. feet | |
Terminal Velocity f/s | |
Range yards | |
Elev. mils | |
Time of Flight seconds | |
Max. Ord. feet | |
Terminal Velocity f/s |
0 |
0.0 |
0.00 |
0 |
3350 |
1800 |
9.4 |
1.84 |
14 |
2580 |
100 |
0.4 |
0.09 |
0 |
3305 |
1900 |
10.0 |
1.96 |
15 |
2540 |
200 |
0.9 |
0.18 |
0 |
3260 |
2000 |
10.7 |
2.08 |
17 |
2500 |
300 |
1.3 |
0.27 |
0 |
3216 |
2100 |
11.3 |
2.20 |
20 |
2461 |
400 |
1.8 |
0.36 |
1 |
3171 |
2200 |
12.0 |
2.32 |
22 |
2422 |
500 |
2.3 |
0.46 |
1 |
3127 |
2300 |
12.7 |
2.45 |
24 |
2383 |
600 |
2.8 |
0.56 |
1 |
3083 |
2400 |
13.4 |
2.57 |
27 |
2345 |
700 |
3.3 |
0.66 |
2 |
3039 |
2500 |
14.1 |
2.70 |
29 |
2307 |
800 |
3.8 |
0.76 |
2 |
2996 |
2600 |
14.8 |
2.83 |
32 |
2269 |
900 |
4.3 |
0.86 |
3 |
2953 |
2700 |
15.6 |
2.96 |
36 |
2232 |
1000 |
4.8 |
0.96 |
4 |
2910 |
2800 |
16.3 |
3.09 |
39 |
2195 |
1100 |
5.3 |
1.06 |
5 |
2868 |
2900 |
17.1 |
3.23 |
42 |
2159 |
1200 |
5.9 |
1.17 |
6 |
2826 |
3000 |
17.9 |
3.37 |
46 |
2123 |
1300 |
6.4 |
1.28 |
7 |
2784 |
3100 |
18.7 |
3.51 |
50 |
2087 |
1400 |
7.0 |
1.39 |
8 |
2742 |
3200 |
19.6 |
3.66 |
54 |
2052 |
1500 |
7.6 |
1.50 |
9 |
2701 |
3300 |
20.4 |
3.80 |
59 |
2017 |
1600 |
8.2 |
1.61 |
10 |
2660 |
3400 |
21.3 |
3.95 |
64 |
1982 |
1700 |
8.8 |
1.73 |
12 |
2620 |
3500 |
22.2 |
4.11 |
69 |
1948 |
|
Complete penetration of gun mantlet and turret front plate has been obtained against the German Pz Kpfw V "Panther" Tank by Shot, H.V., A.P., T30E16 at a range of 800 yards.
|
|
Complete penetration at the juncture of machine gun ball mount with the glacis plate of German Pz Kpfw V "Panther" Tank by Shot, H.V., A.P., T30E16 at a range of 800 yards.
|
|
Complete penetration of lower nose plate of German Pz Kpfw V "Panther" Tank by Shot, H.V., A.P., T30E16 fired at a range of 600 yards.
|
SHOT, FIXED, A.P.-T., 90mm, T33.
DESCRIPTION. The 90mm Armor Piercing Shot T33 is issued as a fixed complete round for the
Gun, 90mm, M3 mounted in Heavy Tank, T26E3 and Gun Motor Carriages, M36 and M36B1. The shot is a
modification of the standard AP, M77 which has been reheat-treated and to which a ballistic
windshield has been attached.
Length: |
Shot | | 14.78 in. |
Complete Round | | 37.53 in. |
Weight: |
Shot | | 24.06 lb. |
Complete Round | | 43.82 lb. |
Muzzle Velocity | | 2,800 f/s |
PURPOSE. This is the most effective shot for the defeat of high obliquity caliber thickness
homogeneous armor plate. The shot will defeat all plates of the German Pz Kpfw V "Panther" Tank
except the gun mantlet. IT WILL PENETRATE THE GLACIS PLATE OF THE "PANTHER" TANK UP TO 1,100 YARDS RANGE.
FIRING DATA. a. Aiming data charts are provided for use with the fire control instruments on the
Gun Motor Carriages, M36 and M36B1 and Heavy Tank, T26E3. The use of these charts provides direct
fire with the following rounds:
Shot, A.P.-T., T33 |
Shot, H.V., A.P.-T., T30E16 |
Projectile, A.P.C.-T., M82 |
Shell, H.E., M71 |
b. The following aiming data charts are contained in this brochure:
A.D.C. 90-B-1, 90mm Gun, (with muzzle brake) M3 on Heavy Tank, T26E3 with Coaxial Telescope, M71C and Periscope Telescopes, M77F and M80D.
A.D.C. 90-C-3, 90mm Gun, (without muzzle brake) M3 on Gun Motor Carriage, M36 or M36B1 with Coaxial Telescope, M76F.
c. Firing Tables are included in this booklet.
ACCURACY. Accuracy firings have been conducted with the T33 round loaded for a
M.V. of 2800 f/s and fired from a standard 90-mm Gun over a range of 700 yards
at a vertical target. An extreme horizontal dispersion of 16 inches and an extreme
vertical dispersion of 19 inches was obtained.
PENETRATION. Armor penetration curves for the shot compared with the standard
A.P.C.-T., M82 Projectile when fired against homogeneous armor plate at 20° obliquity
are contained herein. Included are illustrations of results obtained, with this shot,
against the German Pz Kpfw V "Panther" Tank.
MARKING. A special marking in black appears on each cartridge case, container and box:
|
Shot, fixed, A.P.-T., T33 for Gun, 90mm, M3.
|
|
Cross Section of Shot, A.P., 90mm, T33.
|
GUN, 90MM, M3. SHOT, 90MM, A.P.-T., T33. MUZZLE VELOCITY, 2800 F/S. WEIGHT, 24.06 LBS.
Range yards | |
Elevation mils | |
Time of Flight seconds | |
Maximum Ordinate feet | |
Terminal Velocity f/s |
0 |
0.0 |
0.00 |
0 |
2800 |
100 |
0.6 |
0.11 |
0 |
2774 |
200 |
1.2 |
0.22 |
0 |
2747 |
300 |
1.9 |
0.33 |
0 |
2720 |
400 |
2.5 |
0.44 |
0 |
2694 |
500 |
3.2 |
0.55 |
1 |
2668 |
600 |
3.9 |
0.66 |
2 |
2642 |
700 |
4.6 |
0.77 |
2 |
2615 |
800 |
5.3 |
0.88 |
3 |
2588 |
900 |
6.0 |
1.00 |
4 |
2562 |
1000 |
6.7 |
1.12 |
5 |
2536 |
1100 |
7.4 |
1.44 |
6 |
2510 |
1200 |
8.1 |
1.36 |
7 |
2484 |
1300 |
8.9 |
1.48 |
9 |
2457 |
1400 |
9.6 |
1.61 |
10 |
2431 |
1500 |
10.4 |
1.73 |
12 |
2405 |
1600 |
11.2 |
1.85 |
14 |
2379 |
1700 |
12.0 |
1.98 |
16 |
2353 |
1800 |
12.8 |
4.11 |
18 |
2328 |
1900 |
13.6 |
2.24 |
20 |
2302 |
2000 |
14.4 |
2.37 |
23 |
2276 |
2100 |
15.2 |
2.50 |
26 |
2250 |
2200 |
16.0 |
4.63 |
29 |
2225 |
2300 |
16.9 |
2.77 |
32 |
2200 |
2400 |
17.8 |
2.91 |
35 |
2174 |
2500 |
18.7 |
3.05 |
38 |
2149 |
2600 |
19.6 |
3.19 |
41 |
2123 |
2700 |
20.5 |
3.33 |
45 |
2097 |
2800 |
21.4 |
3.47 |
49 |
2072 |
2900 |
22.3 |
3.62 |
53 |
2048 |
3000 |
23.3 |
3.77 |
58 |
2023 |
3100 |
24.3 |
3.92 |
63 |
1998 |
3200 |
25.3 |
4.07 |
68 |
1973 |
3300 |
26.3 |
4.22 |
73 |
1948 |
3400 |
27.3 |
4.38 |
78 |
1924 |
3500 |
28.3 |
4.54 |
84 |
1900 |
3600 |
29.4 |
4.70 |
90 |
1876 |
3700 |
30.5 |
4.86 |
96 |
1852 |
3800 |
31.6 |
5.02 |
103 |
1828 |
3900 |
32.7 |
5.19 |
110 |
1804 |
4000 |
33.8 |
5.36 |
117 |
1781 |
4100 |
35.0 |
5.53 |
124 |
1758 |
4200 |
36.2 |
5.70 |
132 |
1734 |
4300 |
37.4 |
5.87 |
140 |
1711 |
4400 |
38.6 |
6.05 |
149 |
1688 |
4500 |
39.8 |
6.23 |
158 |
1666 |
4600 |
41.1 |
6.41 |
167 |
1644 |
4700 |
42.4 |
6.59 |
177 |
1622 |
4800 |
43.7 |
6.78 |
187 |
1600 |
4900 |
45.0 |
6.97 |
197 |
1578 |
5000 |
46.4 |
7.16 |
208 |
1556 |
5100 |
47.8 |
7.35 |
219 |
1535 |
5200 |
49.2 |
7.55 |
231 |
1514 |
5300 |
50.7 |
7.75 |
243 |
1493 |
5400 |
52.2 |
7.95 |
256 |
1472 |
5500 |
53.7 |
8.16 |
270 |
1452 |
5600 |
55.2 |
8.37 |
294 |
1432 |
5700 |
56.8 |
8.58 |
299 |
1412 |
5800 |
58.4 |
8.80 |
314 |
1392 |
5900 |
60.0 |
9.02 |
330 |
1373 |
6000 |
61.7 |
9.24 |
346 |
1354 |
6100 |
63.4 |
9.46 |
363 |
1335 |
6200 |
65.1 |
9.69 |
381 |
1316 |
6300 |
66.9 |
9.92 |
399 |
1298 |
6400 |
68.7 |
10.16 |
418 |
1280 |
6500 |
70.5 |
10.40 |
438 |
1262 |
6600 |
72.4 |
10.64 |
459 |
1244 |
6700 |
74.3 |
10.89 |
481 |
1227 |
6800 |
76.3 |
11.14 |
503 |
1210 |
6900 |
78.3 |
11.39 |
546 |
1193 |
7000 |
80.4 |
11.65 |
550 |
1177 |
Note: When firing with the 90mm Gun, M3 without muzzle brake mounted in the Gun Motor Carriages, M36 or M36B1 add 0.6 mils to all values of elevation. |
|
German Pz Kpfw V (Panther) Tank, before firing.
|
|
German Pz Kpfw V (Panther) Tank; Complete penetration at 500 yards with Shot, A.P., 90mm, T33.
|
|
Complete penetration of glacis plate of German Pz Kpfw V (Panther) Tank by Shot, A.P., 90mm, T33 at a range of 1000 yards.
|
Projectile, Fixed, A.P.C.-T., M82 (2,800 f/s M.V.)
DESCRIPTION. The M82 armor piercing projectile is issued as a fixed complete round for the Gun, 90mm, M3
mounted in Heavy Tank, T26E3 and Gun Motor Carriages, M36 and M36B1. The projectile has an armor piercing
cap, ballistic windshield and an Expl. "D" bursting charge which is functioned by the Fuze, B.D., M68.
Length: |
Projectile | | 16.40 in. |
Complete Round | | 38.24 in. |
Weight: |
Projectile | | 24.11 lb. |
Complete Round | | 43.87 lb. |
Muzzle Velocity | | 2,800 f/s |
PURPOSE. The muzzle velocity of this round is 2,800 f/s. The armor piercing cap
makes this projectile especially efficient against thick face hardened armor plate. The
bursting charge makes it extremely effective when penetrations are obtained. PENETRATIONS
CAN BE OBTAINED ON ALL PLATES OF THE "PANTHER" AND "KING TIGER" TANKS
EXCEPT FOR THE GLACIS PLATE AND THE GUN MANTLET.
FIRING DATA. a. Aiming data charts are provided for use with the fire control
instruments on the Gun Motor Carriages, M36 and M36B1 and Heavy Tank, T26E3. The
use of these charts provides direct fire with the following rounds:
Shot, A.P.-T., T33 |
Shot, H.V., A.P.-T., T30E16 |
Projectile, A.P.C.-T., M82 |
Shell, H.E., M71 |
b. The following aiming data charts are contained in this brochure:
A.D.C. 90-B-1, 90mm Gun, (with muzzle brake) M3 on Heavy Tank, T26E3 with
Coaxial Telescope, M71C and Periscope Telescopes, M77F and M80D.
A.D.C. 90-C-3, 90-mm Gun, (without muzzle brake) M3 on Gun Motor Carriage, M36
or M36B1 with Coaxial Telescope, M76F.
c. Firing Tables are included in this booklet.
ACCURACY. Firings for accuracy with the round loaded for a M.V. of 2,800 f/s from
the M3 Gun over a range of 2,100 yards at a vertical target gave an extreme
horizontal dispersion of 41 inches and 70 inches extreme vertical dispersion.
PENETRATION. Armor penetration vs. range curves for the projectile when fired
against 20° and 30° obliquity homogeneous armor plate are included in this
booklet. Illustrations showing the results of firings of this round against plates
similar to those of the "Panther" tank are presented following this discussion.
MARKINGS. Special markings are painted in black on each cartridge case, container and box.
|
Projectile, fixed, A.P.C.-T., M82 for Gun, 90mm, M3.
|
|
Cross Section of Projectile, A.P.C.-T., 90mm, M82.
|
GUN, 90MM, M3. PROJECTILE, A.P.C.-T., M82. FUZE, B.D., M68. MUZZLE VELOCITY, 2800 F/S. WEIGHT, 24.11 LBS.
Range yards | |
Elevation mils | |
Time of Flight sec | |
Maximum Ordinate feet | |
Terminal Velocity f/s |
0 |
0.0 |
0.00 |
0 |
2800 |
100 |
0.6 |
0.11 |
0 |
4777 |
200 |
1.3 |
0.22 |
0 |
2753 |
300 |
1.9 |
0.33 |
0 |
2729 |
400 |
2.5 |
0.44 |
1 |
2706 |
500 |
3.2 |
0.55 |
1 |
2683 |
600 |
3.9 |
0.66 |
2 |
2660 |
700 |
4.5 |
0.77 |
2 |
2636 |
800 |
5.2 |
0.88 |
3 |
2612 |
900 |
5.9 |
1.00 |
4 |
2589 |
1000 |
6.6 |
1.12 |
5 |
2566 |
1100 |
7.3 |
1.44 |
6 |
2543 |
1200 |
8.1 |
1.36 |
7 |
2520 |
1300 |
8.8 |
1.48 |
8 |
2496 |
1400 |
9.5 |
1.60 |
10 |
2473 |
1500 |
10.3 |
1.72 |
12 |
2450 |
1600 |
11.1 |
1.84 |
14 |
2427 |
1700 |
11.8 |
1.96 |
16 |
2403 |
1800 |
12.6 |
2.08 |
18 |
2380 |
1900 |
13.4 |
2.21 |
20 |
2357 |
2000 |
14.2 |
2.34 |
22 |
2334 |
2100 |
15.0 |
2.47 |
24 |
2311 |
2200 |
15.8 |
2.60 |
27 |
2288 |
2300 |
16.6 |
2.73 |
30 |
2265 |
2400 |
17.4 |
2.86 |
33 |
2242 |
2500 |
18.3 |
3.00 |
36 |
2220 |
2600 |
19.2 |
3.14 |
39 |
2198 |
2700 |
20.0 |
3.28 |
43 |
2176 |
2800 |
20.9 |
3.42 |
47 |
2153 |
2900 |
21.8 |
3.56 |
51 |
2130 |
3000 |
44.7 |
3.70 |
55 |
2108 |
3100 |
23.6 |
3.84 |
59 |
2086 |
3200 |
24.5 |
3.99 |
64 |
2063 |
3300 |
25.4 |
4.13 |
69 |
2041 |
3400 |
26.4 |
4.28 |
74 |
2019 |
3500 |
27.4 |
4.43 |
79 |
1997 |
3600 |
28.4 |
4.58 |
84 |
1975 |
3700 |
29.3 |
4.73 |
90 |
1953 |
3800 |
30.3 |
4.88 |
96 |
1931 |
3900 |
31.3 |
5.04 |
102 |
1910 |
4000 |
32.4 |
5.20 |
109 |
1889 |
4100 |
33.5 |
5.36 |
116 |
1868 |
4200 |
34.5 |
5.52 |
123 |
1847 |
4300 |
35.6 |
5.68 |
130 |
1826 |
4400 |
36.7 |
5.85 |
138 |
1805 |
4500 |
37.9 |
6.02 |
146 |
1784 |
4600 |
39.1 |
6.19 |
154 |
1763 |
4700 |
40.3 |
6.36 |
163 |
1743 |
4800 |
41.5 |
6.53 |
174 |
1722 |
4900 |
42.7 |
6.71 |
182 |
1701 |
5000 |
44.0 |
6.89 |
192 |
1681 |
5100 |
45.3 |
7.07 |
202 |
1662 |
5200 |
46.6 |
7.25 |
413 |
1642 |
5300 |
47.9 |
7.44 |
224 |
1623 |
5400 |
49.2 |
7.62 |
235 |
1604 |
5500 |
50.5 |
7.81 |
247 |
1585 |
5600 |
51.9 |
8.00 |
259 |
1566 |
5700 |
53.2 |
8.19 |
474 |
1547 |
5800 |
54.6 |
8.39 |
285 |
1528 |
5900 |
56.1 |
8.59 |
299 |
1509 |
6000 |
57.5 |
8.79 |
313 |
1491 |
6100 |
59.0 |
8.99 |
328 |
1473 |
6200 |
60.5 |
9.20 |
343 |
1455 |
6300 |
62.0 |
9.41 |
359 |
1437 |
6400 |
63.6 |
9.62 |
375 |
1419 |
6500 |
65.2 |
9.84 |
392 |
1401 |
6600 |
66.8 |
10.06 |
410 |
1384 |
6700 |
68.5 |
10.28 |
428 |
1366 |
6800 |
70.2 |
10.50 |
447 |
1349 |
6900 |
71.9 |
10.73 |
466 |
1333 |
7000 |
73.6 |
10.96 |
486 |
1316 |
Note: When firing with the 90mm Gun, M3 with muzzle brake mounted in the
Heavy Tank, T26E3, add 0.4 mil to all values of elevation.
When firing with the 90mm Gun, M3 without muzzle brake mounted in the
Gun Motor Carriages, M36 or M36B1, add 0.3 mil to all values of elevation.
|
|
Complete penetration of Projectile, A.P.C., M82 (2800 f/s M.V.) fired against 2.5 in. of homogeneous armor at 55° obliquity. (Lower nose plate of "Panther" Tank is 2.4 in. at 55°.) Penetration obtained at the following ranges: Rd. 5, Point Blank; Rd. 6, 650 yards; Rd. 8, 950 yards.
|
|
Complete penetration of Projectile, A.P.C., M82 (2800 f/s M.V.) fired against 2.5 in. of homogeneous armor late at 55° obliquity. (Lower nose plate of "Panther" Tank is 2.4 in. at 55°.) Penetration obtained at the following ranges: Rd. 5, Point Blank; Rd. 6, 650 yards; Rd. 8, 950 yards.
|
|
Projectile, A.P.C., M82 (2800 f/s M.V.) fired against 1.5 in. of homogeneous armor plate at 50°. (Side superstructure plate of "Panther" Tank is 1.5 in. at 40°). Penetration obtained at the following ranges: Rd. 9, 4800 yards; Rd. 10, 5450 yards; Rd. 11, 5850 yards.
|
|
Complete rounds for 90mm Gun, M3. No. 1—Projectile, A.P.C.-T., 90mm, M82; No. 2—Shot, A.P.-T., 90mm, T33; No. 3—Shot, H.V., A.P.-T., 90mm, T30E16. All rounds assembled with Case, Cartridge, 90mm, M19.
|
| |