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The M29 mortar was developed as a direct successor to the French Brandt Mle 27/31 mortar.
Answer: False
The M29 mortar entered U.S. service in 1952, replacing the M1 mortar, which was a license-built version of the French Brandt Mle 27/31. Therefore, the M29 did not directly succeed the Brandt mortar.
The M29 mortar entered U.S. service in the late 1940s.
Answer: False
The M29 mortar officially entered U.S. service in 1952, not the late 1940s.
During development, the M29 mortar was initially designated T106.
Answer: True
The M29 mortar was designated T106 during its development phase before being officially adopted as the M29.
The M29 mortar was designated T106 during its operational service.
Answer: False
The designation T106 was used during the development phase of the M29 mortar, not during its operational service.
The M29 mortar is an 81mm weapon.
Answer: True
The M29 mortar is classified as an 81 mm caliber weapon.
What is the primary caliber of the M29 mortar?
Answer: 81 millimeter
The M29 mortar is an 81-millimeter weapon system.
Which mortar system did the M29 replace in U.S. service?
Answer: M1 mortar
The M29 mortar entered U.S. service in 1952, beginning the process of replacing the M1 mortar.
During development, the M29 mortar consisted of which components?
Answer: M29A1 barrel, M23A3 mount, M53 sight, M3 baseplate
During its development phase, designated T106, the M29 mortar comprised an M29A1 barrel assembly, an M23A3 mount, an M53 sight, and an M3 aluminum baseplate.
Which of the following is a characteristic of the M29 mortar's development designation T106?
Answer: It comprised specific components like the M23A3 mount and M3 baseplate.
During its development phase, the T106 designation referred to a mortar that included specific components such as the M23A3 mount and M3 baseplate, eventually evolving into the M29 mortar.
The M29 mortar entered U.S. service in which year?
Answer: 1952
The M29 mortar officially entered U.S. service in the year 1952.
A key improvement in the M29E1 and M29A1 variants was the introduction of a hard chrome-plated bore.
Answer: True
The M29E1 and M29A1 variants, adopted in 1964, featured a hard chrome-plated bore, which enhanced barrel longevity and facilitated easier cleaning.
The M29A1 mortar featured a reinforced barrel to allow for sustained firing.
Answer: True
The M29A1 variant incorporated a reinforced barrel, which was an improvement designed to sustain higher rates of fire compared to the original M29.
The hard chrome-plated bore in the M29A1 variant was primarily intended to increase the weapon's maximum range.
Answer: False
The hard chrome-plated bore in the M29A1 variant was primarily intended to reduce barrel fouling and improve longevity, making cleaning easier, rather than to increase maximum range.
What significant improvement was introduced in the M29E1 and M29A1 variants?
Answer: A hard chrome-plated bore
The M29E1 and M29A1 variants, adopted in 1964, featured a hard chrome-plated bore as a key improvement, enhancing barrel longevity and ease of cleaning.
What was the main advantage of the M29A1 over the original M29?
Answer: Reinforced barrel for higher rates of fire
The M29A1 variant featured a reinforced barrel, which allowed for higher rates of sustained fire compared to the original M29.
The M29A1's hard chrome-plated bore was primarily intended to achieve what benefit?
Answer: Reduce barrel fouling and improve longevity
The hard chrome-plated bore in the M29A1 variant was implemented to reduce barrel fouling and extend the barrel's service life, thereby improving its longevity and ease of maintenance.
The M29 mortar has a maximum rate of fire of 30 rounds per minute.
Answer: False
The maximum rate of fire for the original M29 mortar is 27 rounds per minute. The M29A1 variant has a maximum rate of fire of 30 rounds per minute, but its sustained rate is 5 rounds per minute.
The sustained rate of fire for the M29A1 mortar is higher than its maximum rate of fire.
Answer: False
The sustained rate of fire for the M29A1 mortar is 5 rounds per minute, while its maximum rate of fire is 30 rounds per minute. The sustained rate is significantly lower than the maximum rate.
During the Pentomic reorganization, the M29 was chosen over lighter 60 mm mortars due to perceived insufficient range.
Answer: True
During the Pentomic reorganization in the late 1950s, the M29 was favored over lighter 60 mm mortars because military commanders believed the smaller mortars lacked sufficient range for effective fire support in the context of potential nuclear battlefield conditions.
During the Vietnam War, the M29 mortar's light weight made it ideal for rapid offensive maneuvers.
Answer: False
Contrary to its light weight making it ideal, the M29 mortar's weight was often considered a significant issue during the Vietnam War, making it too heavy for rapid offensive maneuvers and frequently requiring vehicle towing. This led some units to use lighter 60 mm mortars like the M19 and M2 instead.
The M29 mortar has a mass of approximately 93 pounds.
Answer: True
The M29 mortar has a mass of approximately 42.4 kilograms, which is equivalent to 93 pounds.
The M29 mortar uses an automatic feed system.
Answer: False
The M29 mortar utilizes a manual feed system, requiring the crew to insert each round individually.
The M29 mortar saw service in the Korean War and the Vietnam War.
Answer: True
The M29 mortar saw service in both the Korean War and the Vietnam War, among other conflicts.
The M29 mortar was typically operated by a crew of three soldiers.
Answer: False
The M29 mortar was typically operated by a crew of five soldiers.
The M29 mortar's weight was a significant issue during the Vietnam War, often requiring vehicle towing.
Answer: True
During the Vietnam War, the M29 mortar's considerable weight presented challenges for rapid deployment in offensive operations, frequently necessitating vehicle towing and leading some units to opt for lighter alternatives.
What was the maximum rate of fire for the original M29 mortar?
Answer: 27 rounds per minute
The maximum rate of fire for the original M29 mortar is 27 rounds per minute.
Why was the M29 mortar favored over the 60 mm M19 during the Pentomic reorganization?
Answer: It was believed to have sufficient range for potential nuclear battlefield conditions.
During the Pentomic reorganization, the M29 was selected over the lighter M19 due to concerns that the 60 mm mortar lacked adequate range for effective fire support in the anticipated nuclear battlefield environment.
What issue arose with the M29 mortar's use during the Vietnam War?
Answer: Excessive weight limiting its use in offensive operations
The M29 mortar's considerable weight proved problematic during the Vietnam War, restricting its utility in rapid offensive maneuvers and often necessitating vehicle transport.
What is the approximate weight of the M29 mortar?
Answer: 42.4 kg (93 lbs)
The M29 mortar has a mass of approximately 42.4 kilograms, which is equivalent to 93 pounds.
How is the M29 mortar loaded?
Answer: Manually, round by round
The M29 mortar employs a manual feed system, necessitating that each round be inserted individually by the crew.
Which of the following is NOT listed as a conflict where the M29 mortar saw service?
Answer: World War II
The M29 mortar saw service in conflicts such as the Korean War and the Vietnam War, but it was not deployed during World War II.
What is the typical crew size recommended for the M29 mortar?
Answer: 5 soldiers
The M29 mortar was typically operated by a crew comprising five soldiers.
During the Vietnam War, units sometimes preferred lighter mortars over the M29 because:
Answer: The M29 was too heavy for rapid deployment in offensive actions.
The M29 mortar's substantial weight hindered its suitability for rapid deployment during offensive operations in the Vietnam War, leading some units to favor lighter alternatives.
The M29 mortar is described as having a manual feed system. What does this imply?
Answer: The crew must insert each round individually.
A manual feed system indicates that the mortar crew is responsible for loading each round into the weapon one at a time.
The HE M374A2 ammunition can reach a maximum range of approximately 5,025 yards.
Answer: True
The High Explosive M374A2 (HE M374A2) ammunition has a maximum range of 5,025 yards (4,595 meters).
The HE M362A1 round uses a steel body and has a shorter maximum range than the HE M374A2.
Answer: True
The HE M362A1 round features a steel body and has a maximum range of 4,360 yards (3,987 meters), which is shorter than the HE M374A2's maximum range of 5,025 yards.
The HE M43A1B1 ammunition is filled with a mixture of Composition B.
Answer: False
The HE M43A1B1 ammunition is filled with TNT (Trinitrotoluene), not Composition B.
The WP M375A2 is a white phosphorus round designed for illumination.
Answer: False
The WP M375A2 is a white phosphorus round designed to generate smoke, not for illumination.
The WP M370 white phosphorus ammunition has a maximum range identical to the HE M362A1.
Answer: True
The WP M370 has a maximum range of 4,360 yards (3,987 meters), which is identical to the maximum range of the HE M362A1 round.
The HE M374A2 ammunition has a minimum range of 79 yards.
Answer: True
The minimum range for the HE M374A2 ammunition is 79 yards (72 meters).
The HE M43A1B1 ammunition has a minimum range of 75 yards.
Answer: True
The minimum range for the HE M43A1B1 ammunition is 75 yards (69 meters).
The WP M370 ammunition has a minimum range of 57 yards.
Answer: True
The minimum range for the WP M370 ammunition is 57 yards (52 meters).
Which type of ammunition is the HE M374A2?
Answer: High-explosive round
The designation HE M374A2 signifies a High-Explosive round.
What is the maximum range of the HE M374A2 ammunition?
Answer: 5,025 yards (4,595 meters)
The HE M374A2 ammunition has a maximum range of 5,025 yards (4,595 meters).
The HE M362A1 ammunition is characterized by:
Answer: A steel body and a maximum range of 4,360 yards
The HE M362A1 ammunition features a steel body and has a maximum range of 4,360 yards (3,987 meters).
What filling is used in the HE M43A1B1 ammunition?
Answer: TNT (Trinitrotoluene)
The HE M43A1B1 ammunition is filled with TNT (Trinitrotoluene).
What is the primary purpose of the WP M375A2 ammunition?
Answer: To generate white phosphorus smoke
The WP M375A2 ammunition is a white phosphorus round designed primarily for generating smoke.
What is the maximum range of the HE M43A1B1 round?
Answer: 4,250 yards (3,890 meters)
The HE M43A1B1 round has a maximum range of 4,250 yards (3,890 meters).
What is the maximum range of the WP M375A2 round?
Answer: 5,180 yards (4,737 meters)
The WP M375A2 round has a maximum range of 5,180 yards (4,737 meters).
The M301A3 illuminating round uses a parachute to deploy its illumination source.
Answer: True
The M301A3 illuminating round incorporates a parachute to deploy its illumination source after bursting at altitude.
The M301A2 illuminating round bursts at a higher altitude than the M301A3.
Answer: False
The M301A2 bursts at approximately 400 meters, while the M301A3 bursts at approximately 600 meters. Thus, the M301A3 bursts at a higher altitude.
The M43A1 practice round is designed to explode upon impact to simulate combat conditions.
Answer: False
The M43A1 practice round is designed to simulate the weight and ballistic properties of the HE M43A1 round for training purposes. It contains a black powder pellet that produces a visible blast effect upon impact, but it does not explode to simulate combat conditions in the same manner as an HE round.
The M301A3 illuminating round can illuminate an area of approximately 1,200 meters.
Answer: True
The M301A3 illuminating round, when burst at approximately 600 meters, illuminates an area of about 1,200 meters for at least 60 seconds.
The maximum range of the M301A2 illuminating round is greater than that of the M301A3.
Answer: False
The M301A2 has a maximum range of 2,350 yards (2,150 meters), while the M301A3 has a maximum range of 3,440 yards (3,150 meters). Therefore, the M301A3 has a greater maximum range.
The M301A1 illuminating round differs from the M301A2 by having gas check bourrelet grooves.
Answer: True
The M301A1 illuminating round is distinguished from the M301A2 by features such as gas check bourrelet grooves.
The M301A3 illuminating round has a minimum range of 110 yards.
Answer: True
The minimum range for the M301A3 illuminating round is 110 yards (100 meters).
What components are part of the M301A3 illuminating round?
Answer: Time fuze, candle, parachute, and steel fin assembly
The M301A3 illuminating round is composed of a time fuze, a candle for illumination, a parachute for descent control, and a steel fin assembly for stability.
How does the M301A2 illuminating round differ from the M301A3?
Answer: The M301A2 has a shorter tail fin and bursts at a lower altitude.
The M301A2 illuminating round features a tail fin that is 57 mm shorter than the M301A3 and bursts at a lower altitude (approximately 400 meters compared to 600 meters for the M301A3).
What is the purpose of the M43A1 practice round?
Answer: To simulate the weight and ballistics of the HE M43A1 round for training
The M43A1 practice round is designed to replicate the weight and ballistic characteristics of the HE M43A1 round, serving as a training projectile.
The M301A3 illuminating round bursts at approximately what altitude?
Answer: 600 meters
The M301A3 illuminating round is designed to burst at an altitude of approximately 600 meters.
What is the maximum range of the M301A2 illuminating round?
Answer: 2,350 yards (2,150 meters)
The M301A2 illuminating round has a maximum range of 2,350 yards (2,150 meters).
The M43A1 practice round contains materials like plaster of Paris and what else, along with a black powder pellet?
Answer: Stearic acid
The M43A1 practice round contains plaster of Paris, stearic acid, and a black powder pellet.
The M125A1 mortar carrier is based on a modified T257E1 chassis.
Answer: False
The M125A1 mortar carrier is based on a modified M113 chassis. The T257E1 was its original designation during development.
The YPR mortar system is a Dutch system that uses a modified M113 chassis.
Answer: False
The YPR mortar system is a Dutch system, but it utilizes a modified YPR-765 chassis, not an M113 chassis.
The Type 64 mortar is a Japanese system that is a modified copy of the American M29A1.
Answer: True
The Type 64 mortar is indeed a Japanese system produced by Howa, which is a modified copy of the American M29A1 mortar.
The KM29A1 mortar is a Chinese copy of the M29A1.
Answer: False
The KM29A1 mortar is a South Korean copy of the M29A1, manufactured by Daewoo, not a Chinese copy.
The United States is listed as a country that currently uses the M29 mortar.
Answer: False
The United States is listed as a former user of the M29 mortar. Current users are listed in various other countries.
In Austria, the M29 mortar was designated as the 8.1 cm GrW M29/65.
Answer: True
The M29 mortar was designated as the 8.1 cm GrW M29/65 in Austria.
The KM29A1 mortar, produced in South Korea, has a maximum range of 4,730 meters.
Answer: True
The KM29A1 mortar, a South Korean adaptation, has a reported maximum range of 4,730 meters (5,170 yards).
The M125A1 mortar carrier is a self-propelled system based on what chassis?
Answer: Modified M113 chassis
The M125A1 mortar carrier is a self-propelled system that utilizes a modified M113 chassis.
Which country produces the Type 64 mortar, a modified copy of the M29A1?
Answer: Japan
The Type 64 mortar, a modified copy of the M29A1, is produced in Japan by Howa.
The KM29A1 mortar is a copy of the M29A1 manufactured by which company?
Answer: Daewoo
The KM29A1 mortar, a South Korean adaptation of the M29A1, is manufactured by Daewoo.
Which country is listed as a *former* user of the M29 mortar?
Answer: Sweden
Sweden is listed among the former users of the M29 mortar. South Korea, Iran, and Taiwan are listed as current users.
What was the Austrian designation for the M29 mortar?
Answer: 8.1 cm GrW M29/65
In Austria, the M29 mortar was designated as the 8.1 cm GrW M29/65.
The KM29A1 mortar, a South Korean copy, has a reported maximum range of approximately how many yards?
Answer: 5,170 yards
The KM29A1 mortar, a South Korean adaptation, has a reported maximum range of approximately 5,170 yards (4,730 meters).
Which of these is a Dutch self-propelled mortar system mentioned in relation to the M29's lineage or contemporaries?
Answer: YPR
The YPR is a Dutch self-propelled mortar system that utilizes a modified YPR-765 chassis.
The M29 mortar was eventually replaced by a mortar system of American design, the M252.
Answer: False
The M29 mortar was eventually replaced by the M252 mortar, which is of British design, not American. The replacement process began in 1984.
The M224 mortar replaced the M29 in U.S. rifle companies after the Korean War.
Answer: False
The M224 mortar replaced the M29 in U.S. rifle companies following the Vietnam War, not the Korean War. The M29 saw service in both conflicts.
The M29 mortar was replaced by the M19 mortar.
Answer: False
The M29 mortar was replaced by the M252 mortar. The M19 mortar was a lighter 60 mm mortar that the M29 sometimes replaced in specific tactical situations due to weight concerns, but the M19 did not replace the M29 in general U.S. service.
Which mortar system replaced the M29 in U.S. rifle companies after the Vietnam War?
Answer: M224 mortar
Following the Vietnam War, the 60 mm M224 mortar was adopted by U.S. rifle companies, effectively replacing the heavier M29.
The M252 mortar, which eventually replaced the M29, is noted as being of what origin?
Answer: British
The M252 mortar, which succeeded the M29 in U.S. service, is a system of British design.