"Lightened 76 mm SPG OSA-76
Factory #38 designed a draft project of a lightened 76 mm SPG (factory designation OSA-76) with a ZIS-3 gun on their own initiative.
The draft project was presented to the GBTU USA for review.
Experimental prototypes of the SPG are being build.
Brief tactical-technical characteristics of the OSA-76:
Factory #38 designed a draft project of a lightened 76 mm SPG (factory designation OSA-76) with a ZIS-3 gun on their own initiative.
The draft project was presented to the GBTU USA for review.
Experimental prototypes of the SPG are being build.
Brief tactical-technical characteristics of the OSA-76:
- Mass: 3400 kg
- Armour:
- Front: 6 mm
- Sides: 4 mm
- Engine power (four cylinder engine): 50 hp
- Range: 250 km
- Dimensions:
- Length (with barrel): 4800 mm
- Width: 2050 mm
- Height: 1560 mm
- Bore axis height: 1050 mm
- Top speed: 35 kph
- Armour piercing shell muzzle velocity: 662 m/s
- Armour piercing shell mass: 6.5 kg
- Vertical range: -5° to +12°
- Horizontal range: +/- 10°
- Ammunition carried: 30 shells
- Crew: driver, gunner, loader
- Sight: mechanical, with Hertz panorama
The armour has three variants:
- First:
- Front: 6 mm
- Sides: 4 mm
- Second (combat mass 3700 kg):
- Front: 10 mm
- Sides: 10 mm
- Third (combat mass 3800 kg):
- Front: 15 mm
- Sides: 10 mm"