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The SU-76 was the most produced Soviet armored fighting vehicle of World War II.
Answer: False
Explanation: The SU-76 was the second most produced Soviet armored fighting vehicle of World War II, surpassed only by the T-34 medium tank.
S.A. Ginzburg was the chief designer responsible for the initial development of the SU-76.
Answer: True
Explanation: S.A. Ginzburg led the initial development of the SU-76.
The design process for the SU-76 began in June 1942, following an order for infantry support self-propelled guns.
Answer: True
Explanation: The design of the SU-76 commenced in June 1942, in response to a GKO order for infantry support self-propelled guns.
The SU-76 was officially put into service in December 1942 under the factory designation SU-12.
Answer: True
Explanation: The SU-76, designated SU-12, was officially commissioned by a GKO decree on December 2, 1942.
Production of the original SU-76 was suspended in March 1943 due to a flaw in its main armament.
Answer: False
Explanation: Production of the original SU-76 was suspended in March 1943 due to resonant torsional vibrations in its transmission caused by the parallel installation of twin engines.
A total of 560 original SU-76 units were manufactured at Plant No. 38 in Kirov before production was suspended.
Answer: True
Explanation: Before its suspension, 560 original SU-76 units were manufactured at Plant No. 38 in Kirov.
The investigation into the SU-76's mass failures concluded that N.A. Astrov was primarily responsible for the design flaws.
Answer: False
Explanation: The investigation into the SU-76's mass failures concluded that chief designer S.A. Ginzburg was primarily responsible for the design flaws.
What was the SU-76's ranking among Soviet armored fighting vehicles in terms of production numbers during World War II?
Answer: The second most produced
Explanation: The SU-76 was the second most produced Soviet armored fighting vehicle of World War II, surpassed only by the T-34 medium tank.
Who was the chief designer responsible for the initial development of the SU-76?
Answer: S.A. Ginzburg
Explanation: S.A. Ginzburg was the chief designer who led the initial development of the SU-76.
When did the design process for the SU-76 commence, and what was the primary purpose mandated by the GKO?
Answer: June 1942, for infantry support self-propelled guns
Explanation: The design of the SU-76 began in June 1942, following a GKO order for infantry support self-propelled guns.
What was the factory designation for the SU-76 when it was officially put into service?
Answer: SU-12
Explanation: The SU-76 was officially put into service under its factory designation SU-12.
What significant design flaw led to the suspension of original SU-76 production in March 1943?
Answer: Resonant torsional vibrations caused by the parallel installation of twin engines.
Explanation: Production of the SU-76 was suspended due to resonant torsional vibrations in its transmission, caused by the parallel installation of two twin engines on a common shaft.
How many original SU-76 units were manufactured at Plant No. 38 in Kirov before production was halted?
Answer: 560 units
Explanation: A total of 560 original SU-76 units were manufactured at Plant No. 38 in Kirov before production was suspended.
What was the outcome of the investigation into the mass failure of SU-76s in early 1943 regarding chief designer S.A. Ginzburg?
Answer: He was removed from his position, sent to the front, and later killed in action.
Explanation: Chief designer S.A. Ginzburg was removed from his position, sent to the front, and later killed in action, following an investigation that attributed the SU-76's design flaws to him.
The improved SU-76M model was initially known by its factory designation SU-15.
Answer: True
Explanation: The improved SU-76M model was initially designated SU-15 by the factory.
The SU-76M featured a fully enclosed armored casemate to improve crew protection.
Answer: False
Explanation: The SU-76M featured an open-top fighting compartment, as the armored roof over the casemate was removed to lighten the vehicle and resolve ventilation problems.
The SU-76M was adopted by the Red Army in July 1943, with prototypes tested during the Battle of Kursk.
Answer: True
Explanation: The SU-76M was adopted by the Red Army in July 1943, following prototype testing at the Gorokhovets artillery training ground during the Battle of Kursk.
Plant No. 40 in Mytishchi became the primary producer of the SU-76M, building over 9,000 units.
Answer: False
Explanation: GAZ (Gorky Automobile Plant) became the primary producer of the SU-76M from January 1, 1944, building over 9,000 units.
A total of 13,732 SU-76M units were built during its production run.
Answer: True
Explanation: The total production count for SU-76M units was 13,732.
The SU-76M's power plant connected two GAZ-202 engines in parallel, similar to the original SU-76.
Answer: False
Explanation: The SU-76M's power plant connected two GAZ-202 engines in series, a departure from the original SU-76's parallel arrangement.
Later series SU-76M vehicles received a higher rear armor plate with two firing ports and a tube for an anti-aircraft machine gun.
Answer: True
Explanation: Subsequent production series of the SU-76M incorporated a higher rear armor plate for the fighting compartment, featuring two firing ports and a tube for mounting an anti-aircraft machine gun.
Mass production of the SU-76M ceased in December 1945.
Answer: False
Explanation: Mass production of the SU-76M concluded in October 1945.
The 'M' designation is often omitted when referring to SU-76Ms due to the original SU-76 model's widespread ubiquity.
Answer: False
Explanation: The 'M' designation is frequently omitted when referring to SU-76Ms due to the SU-76M's widespread prevalence compared to the original SU-76 model.
What key modification was made to the SU-15 (later SU-76M) to address previous issues and improve crew conditions?
Answer: The armored roof over the casemate was removed, creating an open-top fighting compartment.
Explanation: To address ventilation issues and reduce weight, the armored roof over the casemate was removed, resulting in an open-top fighting compartment for the SU-15 (SU-76M).
When was the SU-76M adopted by the Red Army, and during which major battle were its prototypes tested?
Answer: July 1943, during the Battle of Kursk
Explanation: The SU-76M was adopted by the Red Army in July 1943, with its prototypes tested during the Battle of Kursk.
Which plant became the main producer of the SU-76M from January 1, 1944, building over 9,000 units?
Answer: GAZ (Gorky Automobile Plant)
Explanation: GAZ (Gorky Automobile Plant) became the principal manufacturing facility for the SU-76M from January 1, 1944, producing over 9,000 units.
What was the total number of SU-76M units produced?
Answer: 13,732
Explanation: A total of 13,732 SU-76M units were manufactured throughout its production run.
How did the power plant arrangement of the SU-76M differ from the original SU-76?
Answer: The SU-76M connected two engines in series, unlike the original's parallel setup.
Explanation: The SU-76M's power plant connected two GAZ-202 engines in series, a modification from the original SU-76's parallel engine arrangement.
What was one of the later design improvements incorporated into the SU-76M under N.A. Astrov's leadership?
Answer: Addition of a tube for mounting an anti-aircraft machine gun at the rear of the casemate.
Explanation: Under N.A. Astrov's leadership, later series SU-76M vehicles received a higher rear armor plate with a tube for mounting an anti-aircraft machine gun.
When did the mass production of the SU-76M conclude?
Answer: October 1945
Explanation: Mass production of the SU-76M ceased in October 1945.
Why is the 'M' designation often omitted when referring to SU-76Ms in contemporary accounts?
Answer: The SU-76M's widespread ubiquity made the 'M' designation largely implied.
Explanation: The 'M' designation is frequently omitted in contemporary references due to the SU-76M's widespread prevalence compared to the original SU-76 model, making the 'M' largely implied.
The SU-76 was built on a modified T-34 medium tank chassis and armed with a 122-mm howitzer.
Answer: False
Explanation: The SU-76 was constructed on a lengthened T-70 light tank chassis and armed with the ZIS-3 mod. 1942 76-mm divisional field gun.
The ZIS-3 gun on the original SU-76 was installed in an open-top fighting compartment.
Answer: False
Explanation: The ZIS-3 gun on the original SU-76 was installed in a fixed, fully closed armored casemate.
The original SU-76 power plant featured two engines connected in series with the transmission.
Answer: False
Explanation: The original SU-76 power plant featured two engines connected in parallel with the transmission.
The SU-76 had a crew of four personnel, with the mechanic-driver in the bow and the gun crew in the casemate.
Answer: True
Explanation: The SU-76 operated with a crew of four: the mechanic-driver in the bow and the three-man gun crew in the casemate.
The SU-76M had a combat mass of 11,200 kg.
Answer: False
Explanation: The SU-76M had a combat mass of 10,500 kg (23,149 lb), while the original SU-76 model had a combat mass of 11,200 kg (24,692 lb).
The SU-76M's frontal armor was thicker than its side armor, ranging from 25 to 35 mm.
Answer: True
Explanation: The SU-76M featured frontal armor ranging from 25 to 35 mm thick, which was indeed thicker than its side armor of 10 to 15 mm.
The SU-76M's secondary armament was a 12.7 mm DShK heavy machine gun.
Answer: False
Explanation: The SU-76M's secondary armament was a 7.62 mm DT tank machine gun.
The SU-76M utilized a leaf spring suspension system.
Answer: False
Explanation: The SU-76M was equipped with a torsion bar suspension system.
The SU-76M had an operational range of 250 km on roads and 175 km cross-country with a fuel capacity of 412 liters.
Answer: True
Explanation: The SU-76M had a fuel capacity of 412 liters, providing an operational range of 250 km on roads and 175 km cross-country.
The ZIS-3 gun on the SU-76M had a maximum vertical pointing angle of +25 degrees.
Answer: False
Explanation: The ZIS-3 gun on the SU-76M had vertical pointing angles ranging from -5 to +15 degrees.
The ZIS-3 gun on the SU-76M could achieve a rapid fire rate of up to 20 rounds per minute.
Answer: True
Explanation: The ZIS-3 gun on the SU-76M could achieve a rapid fire rate of up to 20 rounds per minute.
Which chassis and main armament combination was utilized for the SU-76?
Answer: T-70 light tank chassis with a ZIS-3 mod. 1942 76-mm divisional field gun
Explanation: The SU-76 was constructed on a lengthened T-70 light tank chassis and armed with the ZIS-3 mod. 1942 76-mm divisional field gun.
How was the ZIS-3 gun integrated into the original SU-76's design?
Answer: In a fixed, fully closed armored casemate above the rear of the hull.
Explanation: The ZIS-3 gun was installed in the embrasure of the front armored plate of a fixed, fully closed armored casemate, positioned above the rear of the SU-76's hull.
What was the configuration of the original SU-76's power plant?
Answer: Two engines connected in parallel with the transmission.
Explanation: The original SU-76 power plant featured two engines connected in parallel with the transmission.
What was the combat mass of the SU-76M?
Answer: 10,500 kg (23,149 lb)
Explanation: The SU-76M had a combat mass of 10,500 kg (23,149 lb).
What was the range of the SU-76M's frontal armor thickness?
Answer: 25 to 35 mm
Explanation: The SU-76M featured frontal armor ranging from 25 to 35 mm thick.
What constituted the secondary armament of the SU-76M?
Answer: A 7.62 mm DT tank machine gun
Explanation: The secondary armament of the SU-76M consisted of a 7.62 mm DT tank machine gun.
What type of suspension system did the SU-76M utilize?
Answer: Torsion bar suspension
Explanation: The SU-76M was equipped with a torsion bar suspension system.
What was the maximum speed attainable by the SU-76M?
Answer: 45 km/h (28.0 mph)
Explanation: The maximum speed of the SU-76M was 45 km/h (28.0 mph).
What were the vertical pointing angles of the ZIS-3 gun on the SU-76M?
Answer: -5 to +15 degrees
Explanation: The ZIS-3 gun on the SU-76M had vertical pointing angles ranging from -5 to +15 degrees.
The first SU-76 units were deployed to the Eastern Front in late 1943 to counter the German offensive at Kursk.
Answer: False
Explanation: The first SU-76 units were deployed to the Volkhov Front at the end of January 1943 to participate in breaking the Siege of Leningrad.
The SU-76M primarily served as a heavy tank destroyer against German Tiger tanks.
Answer: False
Explanation: The SU-76M primarily served as a light assault gun, mobile anti-tank weapon against medium/light tanks, and a mobile gun for indirect fire. Its ZIS-3 gun was not effective against Tiger tanks.
The SU-76M was well-regarded by Soviet infantrymen due to its powerful gun and open compartment facilitating communication.
Answer: True
Explanation: Soviet infantrymen appreciated the SU-76M for its powerful gun in close support and its partially open fighting compartment, which facilitated communication with the crew.
The SU-76M was highly effective at knocking out German Tiger tanks with direct frontal shots.
Answer: False
Explanation: The SU-76M's ZIS-3 gun was not effective against Tiger tanks; Soviet manuals advised targeting tracks or gun barrels.
During the Belarus liberation campaign in 1944, the SU-76M was unique among Soviet vehicles for its ability to operate in swamps.
Answer: True
Explanation: The SU-76M was indeed the only Soviet vehicle capable of operating in swamps with minimal engineering support, a crucial advantage during the Belarus liberation campaign in 1944.
Where were the first SU-76 units deployed for combat at the end of January 1943?
Answer: The Volkhov Front
Explanation: The first SU-76 units were deployed to the Volkhov Front at the end of January 1943 to participate in breaking the Siege of Leningrad.
For how long did the SU-76i serve on the front lines before being withdrawn?
Answer: From fall 1943 to early 1944.
Explanation: The SU-76i served on the front lines from fall 1943 to early 1944 before being withdrawn for training and testing.
What was one significant impact of the SU-76M on Soviet military doctrine?
Answer: It virtually replaced light tanks in the close support role.
Explanation: The SU-76M significantly impacted Soviet military doctrine by virtually replacing light tanks in the close support role.
What made the SU-76M vulnerable in combat, despite its advantages?
Answer: Its thin armor and open top.
Explanation: Despite its advantages, the SU-76M was vulnerable in combat due to its thin armor and open top, making it susceptible to anti-tank weapons and grenades.
What were the three main battlefield roles successfully performed by the SU-76M?
Answer: Light assault gun, mobile anti-tank weapon, and mobile gun for indirect fire.
Explanation: The SU-76M successfully performed three main battlefield roles: a light assault gun for infantry support, a mobile anti-tank weapon, and a mobile gun for indirect fire.
Why was the SU-76M particularly appreciated by Soviet infantrymen in urban combat?
Answer: Its partially open fighting compartment facilitated communication with infantry.
Explanation: The SU-76M's partially open fighting compartment facilitated direct communication between infantry and crew, which was highly valued in urban combat scenarios.
What tactic did Soviet manuals advise for SU-76M gunners when engaging heavily armored targets like the German Tiger tank?
Answer: Aim for the tracks or gun barrels.
Explanation: Soviet manuals advised SU-76M gunners to aim for the tracks or gun barrels when engaging heavily armored targets such as the German Tiger tank, as direct frontal shots were ineffective.
The ZSU-37, the first serial Soviet tracked armored anti-aircraft vehicle, was based on the SU-76M chassis.
Answer: True
Explanation: The ZSU-37, the first serial Soviet tracked armored anti-aircraft vehicle, was indeed based on the SU-76 chassis.
The experimental OSU-76 variant was based on the T-34 chassis and armed with a 122-mm howitzer.
Answer: False
Explanation: The experimental OSU-76 variant was based on the T-60 light tank chassis and armed with the 76-mm ZIS-3 gun.
The SU-85B variant, an improved version with an 85-mm LB-2 gun, entered mass production in 1945.
Answer: False
Explanation: The SU-85B variant was recommended for production after testing in April and May 1945 but was ultimately not produced due to post-war vehicle production cutbacks.
The MLVM was a Romanian armored personnel carrier designed in 1978, based on the SU-76M chassis.
Answer: True
Explanation: The MLVM was a Romanian armored personnel carrier designed in 1978, utilizing the SU-76M chassis as its foundation.
The SU-76i was a Soviet-designed variant that used a modified T-70 chassis.
Answer: False
Explanation: The SU-76i was based on captured German Panzer III and StuG III chassis, and was not a Soviet-designed variant using a T-70 chassis.
The SU-76i retained the original German Maybach gasoline engine and torsion-bar suspension.
Answer: True
Explanation: The SU-76i, being based on captured German chassis, retained the original German Maybach gasoline engine and torsion-bar suspension.
The SG-122, armed with a 122 mm M-30 howitzer, saw extensive production due to its effectiveness in infantry support.
Answer: False
Explanation: The SG-122 saw limited production (about 20 units) because its 122 mm M-30 howitzer was deemed an insufficient weapon for infantry support.
The SU-76P was created in Leningrad during its siege in 1941, based on the T-26 chassis.
Answer: True
Explanation: The SU-76P was indeed created in Leningrad in 1941 during its siege, utilizing the T-26 chassis.
Which other Soviet armored vehicle was based on the SU-76M chassis?
Answer: ZSU-37 anti-aircraft vehicle
Explanation: The ZSU-37, the first serial Soviet tracked armored anti-aircraft vehicle, was based on the SU-76 chassis.
What was the experimental OSU-76 variant based on?
Answer: T-60 light tank chassis
Explanation: The experimental OSU-76 variant was based on the T-60 light tank chassis.
Why did the SU-85B variant, despite being recommended for production, ultimately not enter production?
Answer: Post-war vehicle production cutbacks prevented its manufacturing.
Explanation: The SU-85B variant, despite being recommended for production, ultimately did not enter manufacturing due to post-war vehicle production cutbacks.
What was the origin of the SU-76i?
Answer: It was based on captured German Panzer III and StuG III chassis.
Explanation: The SU-76i was based on captured German Panzer III and StuG III chassis, distinguishing it as a 'foreign' variant.
What armament did the SU-76i carry, and where were approximately 200 units converted?
Answer: An S-1 76.2 mm tank gun, at Factory No. 37.
Explanation: The SU-76i was armed with an S-1 76.2 mm tank gun, and approximately 200 units were converted at Factory No. 37.
What was the primary reason for the limited production of the SG-122?
Answer: The 122 mm M-30 howitzer was deemed insufficient for infantry support.
Explanation: The limited production of the SG-122 was primarily due to the 122 mm M-30 howitzer being considered an insufficient weapon for infantry support.
What unique circumstances led to the creation of the SU-76P in Leningrad in 1941?
Answer: A critical lack of high-explosive 45 mm ammunition during the siege.
Explanation: The SU-76P was created in Leningrad in 1941 as a response to a critical shortage of high-explosive 45 mm ammunition during the siege.
Most SU-76Ms were withdrawn from Soviet army service by the late 1960s.
Answer: False
Explanation: The majority of SU-76Ms were withdrawn from Soviet army service in the early 1950s, though some were retained for training until the 1960s.
China and North Korea were among the former operators of the SU-76M.
Answer: True
Explanation: China and North Korea are listed among the former operators of the SU-76M.
The SU-76M at the Bovington Tank Museum was captured from East Germany during the Cold War.
Answer: False
Explanation: The SU-76M at the Bovington Tank Museum was captured from North Korea in 1950 during the Korean War.
When were the majority of SU-76Ms withdrawn from Soviet army service?
Answer: Early 1950s
Explanation: The majority of SU-76Ms were withdrawn from Soviet army service in the early 1950s.
Which country captured the SU-76M displayed at the Bovington Tank Museum in 1950?
Answer: North Korea
Explanation: The SU-76M at the Bovington Tank Museum was captured from North Korea in 1950 during the Korean War.