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Self-Propelled Anti-Aircraft Artillery (SPAAA)

Soviet Union | 1945

"The ZSU-37 appeared too late for operational use in World War 2 and ultimately saw just 75 examples delivered."

Authored By: Staff Writer | Last Edited: 04/29/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The ZSU-37 was born out of a Soviet Army need for Self-Propelled Anti-Aircraft Gun (SPAAG) protection in World War 2 (1939-1945). It was based on the chassis of the SU-76 self-propelled gun system which, itself, held origins in the T-70 Light Tank of 1942. Development of the 12.5-ton vehicle began in 1943 and production began slowly before the close of the war in Europe which yielded just a few operational vehicles from the Works Number 40 plant at Mytishchi. Manufacture continued in the post-war years to which 75 vehicles were delivered between 1945 and 1948.

The ZSU-37 fitted a single 37mm M1939 (61-K) autocannon in an open-air superstructure fitted over the rear of the T-70 hull. The hull was lengthened to accommodate the turret installation which resulted in a sixth road wheel being fitted to the track arrangement. The track-and-wheel system retained the front-mounted drive sprocket and rear-mounted track idler seen in the T-70 Light Tank and three track return rollers were used. Armor protection ranged from 6mm to 35mm across the various facings of the vehicle and dimensions included a length of 17 feet, a width of 9 feet and a height of 7 feet. A typical operating crew numbered six.

The ZSU-37 was driven by a GAZ-203 series 12-cylinder liquid-cooled gasoline engine - which was really just two paired 6-cylinder GAZ engines. The twin engines outputted at 160 horsepower allowing the ZSU-37 a maximum road speed of 28 miles per hour with an operational range of 220 miles. The torsion bar suspension system allowed for cross country travel to which speeds dropped below 20 miles per hour and ranges down to under 140 miles.

In operational service, the limitations of the ZSU-37 were soon pointed out. The light tank chassis was not as agile as required nor was its powerpack arrangement suitable for the ranges and speeds expected in Soviet tank maneuvers. Additionally, armor protection was poor and the open-air nature of the turret exposed the crew to all sorts of battlefield dangers and inclement weather. The single 37mm cannon - though powerful in other roles - was ill-suited for the role of fast-acting gun against incoming, moving aerial targets.

As such, ZSU-37s did not lead a noticeably long service life and, with its limited production run, fell to history. The Soviet Army adopted the 2 x 57mm cannon-armed ZSU-57-2 SPAAG in its place, this design based on the much improved chassis and running gear of the famous T-54 Main Battle Tank (MBT).

The ZPU portion of the designation is from the Russian "Zenitnaya Samokhodnaya Ustanovka" which appropriately translates to "Anti-Aircraft, Self-Propelled Mount". The "37" in the designation comes from the cannon caliber.

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Power & Performance
Those special qualities that separate one land system design from another. Performance specifications presented assume optimal operating conditions for the ZSU-37 Self-Propelled Anti-Aircraft Artillery (SPAAA).
1 x GAZ-203 (2 x GAZ-202 6-cylinder, liquid-cooled gasoline engines in tandem) engine developing 160 horsepower.
Installed Power
28 mph
45 kph
Road Speed
224 miles
360 km
The physical qualities of the ZSU-37 Self-Propelled Anti-Aircraft Artillery (SPAAA).
17.2 ft
5.25 meters
O/A Length
9.0 ft
2.75 meters
O/A Width
7.2 ft
2.18 meters
O/A Height
27,948 lb
12,677 kg | 14.0 tons
Armament & Ammunition
Available supported armament, ammunition, and special-mission equipment featured in the design of the ZSU-37 Self-Propelled Anti-Aircraft Artillery (SPAAA).
1 x 37mm M1939 (61-K mod) autocannon.
Dependent upon ammunition carrier / supplies.
Nightvision - NONE.
Chemical, Biological, Radiological, Nuclear Protection (CBRN) - NONE.
Notable series variants as part of the ZSU-37 family line.
SU-72 - Single prototype appearing in 1939; fitting 1 x 37mm 61-K mod gun on T-60/T-70 style chassis; never placed into production.
SU-11 - Single prototype appearing in 1942; fitting 1 x 37mm 61-K mod gun on T-60/T-70 style chassis; never placed into production.
SU-17 - Prototype appearing in late 1943; based on SU-76M SPG chassis; fitting 1 x 37mm 61-K mod gun; powered by ZIS-80MF engine; revised rotating turret assembly; three prototypes completed.
ZSU-37 - Base Production Series Designation; appearing in 1945; 75 examples produced until 1948.
Global customers who have evaluated and/or operated the ZSU-37. Nations are displayed by flag, each linked to their respective national land systems listing.

Total Production: 75 Units

Contractor(s): Works No. 40 Factory - Soviet Union
National flag of the Soviet Union

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Image of the ZSU-37
Image courtesy of the Public Domain.

Design Qualities
Some designs are single-minded in their approach while others offer a more versatile solution to battlefield requirements.
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The ZSU-37 Self-Propelled Anti-Aircraft Artillery (SPAAA) appears in the following collections:
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