Overview
The gun was designed by the F. F. Petrov Design Bureau on the basis of the D-44 85-mm divisional gun and production of the D-48 began in 1953 at the No. 75 factory in Yurga. The D-48 used the breechblock from the BS-3 100-mm field gun in order to achieve a rate of fire of 15 rounds per minute at maximum cadence. The gun can transition from march to combat order in about two minutes.
The D-48N was a version with an APN 2-77 or 3-77 infrared imaging device fitted for night combat. A licensed version of the D-48 was produced in China as the Type 60.
The gun fires a high velocity armor-piercing tracer (HVAP-T) BR-372 Projectile at 1040 meters per second and can penetrate 185mm of armor at a range of 1000 meters at an angle of obliquity of 90 degrees. The 3BK-7 high explosive antitank (HEAT) projectile can penetrate 192mm of armor at an angle of obliquity of 60 degrees. The effective range of armor-piercing shells for the D-48 is 1,230 meters (HVAP-T) or 940 meters (HEAT). Additionally, the D-48 antitank gun is capable of firing a 9.66 kilogram OF-372 high explosive projectile to a direct fire range of 1,200 meters or an indirect fire range of 18.97 kilometers. The Ammunition for the D-48 was developed by necking down 100-mm ammunition in order to achieve higher muzzle velocities.
The gun is towed by a URAL-375D truck or an AT-P tractor with a maximum towing speed over asphalt roadway of about 60km/h. The tires on the D-48 are those of the ZIS-5 truck.
Designs with auxiliary power units were also investigated but never developed beyond prototype stage.
| Performance of D-48 and comparable weapons | ||
| Effectiveness against rolled homogeneous armor | ||
| Weapon | Muzzle Velocity, meters per second | Penetration in mm |
| 85 mm D-48 (firing BR-372) | 1040 | 185 (at 90°, range 1000 meters) |
| 8.8 cm PaK 43 (firing PzGr 40/43) | 1130 | 193 (at 60°, range 1000 meters) |
| 90 mm M3 (firing M304) | 1021 | 195 (at 60°, range 914 meters) |
| These data are not directly comparable as various measurement methods are used. They are, however, illustrative of the relative performance of the weapons. |
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Read more about this topic: 85 Mm Antitank Gun D-48