81mm mortar round

81mm mortar round

The M1 Mortar is an American 81mm mortar that fires specialized aerodynamic grenades at a steep angle for long range infantry support in combat. It has a range of about 4, yards and usually is crewed by five soldiers that can give it a sustained rate of fire of almost 16 rounds per minute.

Its name comes from the length of the barrel, 63cm. It fires aerodynamic grenades in a steep arc to bombard targets from above without direct line of sight to the target. Usually operated by a four or five man crew, the mortar can be operated by as little as one soldier, as it weighs just The Mortar is used as an option for the Engineer Kits. It is very useful in harassing enemies and providing support at long ranges, as the shell's explosive radius is quite large and can be fired at practically any position on the map.

The M1 can even be used against vehicles to some extent, if placed at an angle. It's also possible to use the mortar against helicopters, although a lot of practice is required. The mortar behaves like any other vehicle; it takes damage from enemy fire and explodes when its health is depleted if a player was manning the mortar at the time, he will be killed as well.

It can also be entered by any player and can be repaired and resupplied by ammo boxes. The path taken by the mortar shell is less like an actual mortar and more like the high lob of a hand grenade. It can be treated much like a fast falling tank shell.

They use same models from base game, and are same in operation.

Mortar (Battlefield Vietnam)

Sign In Don't have an account? Start a Wiki. Do you like this video? The M1 Mortar being operated in Battlefield Vietnam. Because Battlefield Vietnam features different loadouts for each factionthis list may not be specific enough. Please see each faction's respective page for information on individual weapon kits and loadouts.

Categories :. Cancel Save. All Kits. Assault Kit. Engineer Kit. Heavy Assault Kit. Scout Kit. Cut From Kit. Flamethrower Kit.The M29 81mm mortar replaced the M1 mortar in and was used heavily by American forces in the upcoming Vietnam War. Credit: A soldier adjusts his M29 81mm mortar. Credit: Close up view of the muzzle on an M29 81mm mortar system. Credit: Close-up detail view of the control systems of an M29 81mm mortar. Credit: Front view of the M29 81mm mortar; note circular base plate and bipod spikes.

Credit: A soldier fine tunes the trajectory on his M29 81mm mortar. Credit: A mortar team tends to their M29 81mm mortar during partice. Credit: A soldier protects himself during the violent firing phase of the M29 81mm mortar. Credit: An M29 81mm mortar is part of this military review.

Credit: A soldier prepares to drop an 81mm projectile down the tube of the M29 mortar. The "straight tube" M29s were chosen for two reasons: greater range than her predecessors while also proving lighter to maximize portability. The M29 weighed in at a manageable Mortar crews of the Army and Marine Corps were pleased with the improvements in the new system.

A lighter design allowed a fire team to get into position quickly while at the same time carry more mortar rounds. The mortar also offered the promised increase in range as well, allowing fire teams to engage the enemy at distance. The M29 would become the standard American mortar in the upcoming Vietnam War. The 81mm weapons platoon consisted of the headquarters platoon and four mortar squads. In charge was the platoon commander - normally a lieutenant.

Second-in-command was an assistant platoon commander, also normally a lieutenant, as well as a platoon sergeant. A weapons sergeant was in charge of the ammunition and he served as the primary communications personnel. The mortar squad was composed of different numbers of personnel depending on the service branch and battlefield situation. In a surprise combat engagement, a mortar tube could conduct fire missions with as few as three operators though optimally only for a short time - this group was made up of the gunner, assistant gunner and ammunition bearer.

However, standard operating procedures suggested five to seven personnel as normal for most missions. The squad leader carried the sight box containing the M34A2 sight and four aiming stakes. His position was normally behind the mortar in a crouched position where he could control and support the squad during the fire mission.

The sergeant also monitored the emplacement of the tube, sighting for distance, loading and firing of the mortar.

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The assistant squad leader was also the gunner who manned the left side of the mortar where he could operate the sight, the traversing assembly wheel and the gear handle for elevation.

His carried equipment alone weighed some 25 lbs. The gunner would receive commands from the squad leader and enter the appropriate firing data onto the sight and position the tube for correct deflection and elevation against the intended target or target area. If large deflection shifts were required, the gunner and assistant gunner the latter carrying one ready-to-fire round of HE High-Explosive and the tube, weighing 23lbs picks up the mortar and repositions it.Mortar, 81mm M1 81mm Medium Infantry Mortar.

The Mortar, 81mm M1, was another French-inspired weapon that went on to see successful combat actions with American forces in World War 2, Korea and Vietnam.

Credit: Image copyright www. Credit: Left side view of the M1 81mm mortar. Credit: Detailed diagram of the M4 collimator sight used on the M1 81mm Mortar. The M1 became the standard American battalion mortar of World War 2 and saw action in the Korean War as well as the Vietnam War until it was eventually replaced by the M29 - a lighter 81mm system with a longer reach.

As a weapons engineer, Frenchman Brandt was responsible for a slew of advancements in the field of mortars and projectiles that led to the development of varying 60mm, 81mm and mm systems while at the same time furthering HEAT rifle grenade and HEAT-warhead anti-tank weaponry technology.

U.S. Army 81mm MORTAR in action/LIVE-FIRE! (Soldiers train on the Grafenwoehr MORTAR RANGE!)

Brandt's designs were heavily copied throughout World War 2 and beyond, making them commonplace throughout the globe in the years following. The type stayed in circulation in the post-war US Army though several attempts to find a replacement ultimately came to naught. As a result, the US Army decided to work instead on bettering ammunition. Inthe US Army acquired four of the Brandt 81mm prototypes, and, after some slight modifications to suit American use and production methods, the mortar appeared formally as the "81mm Mortar, M1" in Army nomenclature.

License production was handled by A. Like the "lighter" M2 system, the M1 was made up of three main components - the firing tube, bipod and baseplate. When completely assembled, the M1 weighed in at lbs.

Weight was distributed as follows: the tube made up The base plate itself was 45lbs. Overall length of the system measured in at 3 feet, 9. Muzzle velocity was rated at feet per second out of the smoothbore firing tube. A sustained rate-of-fire of 18 rounds per minute was possible, with the operator loading the M1 by dropping the prepared projectile into the muzzle.

A firing pin at the base of the firing tube activated the projectile's primer and ignition cartridge the projectile was dropped down the tube "fuze-end" first and the corresponding action launched the round at the predetermined desired angle. The operator s need only to protect themselves after the projectile was dropped in the tube.

This allowed for an excellent sustained rate-of-fire - a maximum rate-of-fire of to rounds per minute was achievable. The M1 maintained a minimum range of yards and a maximum range of 3, yards. The operator utilized an M4 collimator sight same as on the M2 60mm derivative fitted to the bipod for accuracy calculations and adjustments.

The 6. The The 15lb M56 was another Heavy HE round of even greater explosive firepower with a more limited range of 1, yards.

The fuze on these particular projectiles was adjustable as needed. Shells were stabilized along their flight path via fixed fins at their rear sections to compensate for the M1's use of a smoothbore firing tube i. Besides the conventional explosive rounds, the M1 could also make use of the The White phosphorous round was also equally adept at attacking infantry as an incendiary munition.

The M was a useful illuminating round with an adjustable fuse and second burn duration and deployable parachute, the latter helping to retard the projectile's fall. Transport of the heavy M1 was solved through the use of a two-man hand cart designated simply as the "Hand Cart M6A1".

This allowed the least possible amount of crew to move the mortar system about, allowing transport of the weapon into defensive or offensive positions as required with relatively little pain. Another option was to have the system towed via mule by way of a specially-devised harness.

81mm Mortar

Despite its inherent weight drawback of the M1 kit, the firepower of the mortar offset any negatives especially when supporting artillery would not be made available in a given operation.The 81 mm mortar provides air assault, airborne, ranger, and light infantry rifle companies with an effective, efficient, and flexible weapon, typically found in the mortar platoon of an infantry battalion.

The 81mm mortar is a smooth-bore, muzzle-loaded, high-angle, indirect fire weapon consisting of a barrel, sight, bipod, and base plate. The pound M1 was designed to be man-portable when broken down into three components, the tube, the bipod mount, and the round baseplate, each about 45 pounds. The rectangular base plate allowed for firing in any direction.

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Photo: Courtesy of Bob Pettit. Click for larger size. Its tube was 3ft, 9. The field manual was FM "81mm Mortar M1", with and later dates. The M 81mm mortar replaced the M1 in U. The straight tube M has a greater range and lighter weight, at The M29 was used in Vietnam and, like the M1, can be broken down into smaller loads for carrying.

The rounds weigh about 15 pounds each. The M29A1 featured an improved tube that allowed for an increase in the rate of fire, and the new and lighter M3 base which could also be retrofitted to the M The field manual was FM "81mm Mortar M29", with and later dates. The M 81mm Medium Extended Range Mortar has a greater range 4, meters to 5, meters and effectiveness than the M It is distinguished by a short tapered cone at the muzzle that reduces blast.

The breech end is finned for better cooling. The M is an adaptation of the standard British 81mm mortar developed in the s. There are many fine websites that have additional information on this topic, too many to list here and too many to keep up with as they come and go. Use this Google web search form to get an up to date report of what's out there.

81mm mortar round

For good results, try entering this: mortar 81mm. Then click the Search button. Like most websites today, Olive-Drab.

Please turn on the Javascript on your browser to see the more than one thousand Olive-Drab. Mortar: 81 mm The 81 mm mortar provides air assault, airborne, ranger, and light infantry rifle companies with an effective, efficient, and flexible weapon, typically found in the mortar platoon of an infantry battalion.The mortar is a mechanically simple device—not much more than a tube with a firing pin—and the design is little changed from the 81mm mortars of WWII.

Recoil is absorbed by the ground, so the weapon does not need the complex mechanisms of other artillery. A crew can fire 15 per minute, enough to break up infantry assaults. The plunging, high-angle fire of the mortar is effective against targets in trenches or behind cover.

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The mortar has always been the footsoldier's favorite piece of artillery. That's partly because of the simplicity, and partly because they are controlled at battalion level and below. Unlike heavier artillery, they're available right when you need them. The standard infantry support weapon is the M 81mm mortarwhich lobs a 10 lb. It is light enough to be portable when broken down into its three component parts though carrying the awkward lb.

Mortars are not especially accurate weapons. The first round may be meters or more off-target, but by adjusting the aim point, the crew can get on target after a few shots. When aiming at a tree line from which enemy fire is coming, or an company dug in across an entire hilltop, precision is not so vital. Others targets are tricky though. For instance, you could not hope to hit a moving vehicle with a mortar.

Basically, we're talking about a smart mortar bomb with some surprising new capabilities. The first improvement is in range.

81mm mortar round

Normally, the only way to increase the range of a mortar is to add a bigger charge of propellant or a rocket booster. Thanks to the wings ACERM has better aerodynamics and can hit targets more than 6 miles away, doubling the distance it can fly. The other improvement is accuracy. Opponents tend to gets their heads down after the first bombs land, so the first shots may be the most important. The effective kill radius of the bomb is 35 meters, so even first shot should be close enough to the target to do the job.

In addition, ACERM features a new warhead with more high-density fragments and less explosive, and this has a significantly greater effect that the old version. Previously, programming a guided mortar round with the target coordinates required some hefty equipment. At two pounds, it is small enough to slip in a cargo pocket and has an touchscreen Android interface.

That is an important feature when you want to reduce the chances of mortar bombs being sent to the wrong address in the thick of the fight.

Inert Ordnance/ Rounds

GPS guidance is only half the story. This is a miniature laser sensor that allows the mortar bomb to act like a laser-guided missile that hits wherever an illuminated laser spot is directed. The accuracy is better than one meter, and it can even hit moving targets. The "Low-Cost" part is important. The mortar team may not be able to see a target six miles or more away, let alone mark it with a laser designator, but the ACERM project aims to give them some help.

Some of the live fire tests will employ Skylark I-LEa small hand-launched drone developed by Israeli company Elbit. Marine Corps. The program includes a variety of live-fire tests through the next year, and aims to reach the Pentagon's Technology Readiness of 6: "prototype demonstration in a relevant environment. Development may not stop there.

81mm mortar round

This should be able to achieve ranges somewhere out beyond 25 miles. Here, several rounds are fired at the same target along slightly different trajectories, so even though they are fired one after the other, they all arrive at the same moment. ACERM is an impressive demonstration of how a dumb weapon can be upgraded with the addition of some electronics. Its final evolution might see the end of the mortar: the developers suggest that it could be dropped from a drone as a miniature glide-bomb.

The drone does all the spotting and laser designation, the crew are safe miles away. And nobody has to carry that base plate.Sources: FM Mortars. Each cartridge has fins around the tail to stabilize it in flight and to cause it to strike fuze-end first. The propelling charge consists of an ignition cartridge and removable propellant increments.

The ignition cartridge with primer is fitted into the base of the fin shaft.

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The removable increments are fitted onto or around the shaft, depending on their type. Ammunition types: High Explosive HE. Fragmentation and blast. Causes troop casualties and damage to light material. Used to screen, signal, and act as an incendiary. Used to illuminate, signal, and mark. Training Practice TP. Training items are completely inert. Practice items may or may not contain explosive sections such as propellant charges or spotting charges.

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Fuze types: Point Detonating PD. All PD fuzes are superquick - detonate on impact. Proximity VT. A proximity fuze is an electronic device that detonates a projectile by means of radio waves sent out from a small radio set in the nose of the projectile. Mechanical Time MT. These fuzes use a clockwork mechanism to delay functioning for a specific time. Multioption MO. These fuzes have multiple functions proximity, impact, delay.

Dummy, Practice. M84 MT Fuze.An ignition cartridge, screws into the tail fin assembly. When the round is dropped into the tube, it hits a firing pin at the bottom which fires the cartridge, forcing flame out the holes in the tail fin assembly, igniting the propellant bags.

Here is a 60mm round with its cartridge yellow. The paper cartridge is a separate unit, which presses onto the primer base. At left is the primer for the 81mm round, next to a 12ga shotgun shell for comparison. Of course the ignition cartridge contains powder only. These were used in the M2 Mortar. They weighed 3 pounds and had a maximum range of 2, yards, although accuracy was diminished at ranges over 1, While having less power than the 81mm mortar, the 60mm was easy to transport and could be brought into action quickly, which was its prime asset.

The 60mm M2 was a versatile and reliable performer. A key infantry weapon during World War II. It is the smallest of the high explosive shells made for the M1 81mm Mortar.

It weighed 6. The heaviest of the 81mm types was the M56, weighing 15 lbs with a maximum range of 1,yards. There was also There were also White Phosphorus and Illumination rounds made for each caliber. Those bags, left attached or removed individually, gave basic range control. Changing the inclination of the mortar tube provided fine adjustment. The round needs to be of a precise diameter for proper function with a large enough an air gap to allow the shell to easily slide down the tube.

Something is needed to seal that gap, when the the round fires, for maximum performance. The "bourrelet" feature provides the necessary gas seal. The bourrelet is a series of grooves machined into the wall of the shell body.

When the high pressure propellant gas begins to pass between those grooves and the inner wall of the tube, air turbulence is created forming an effective gas-check.

Without this feature, range would be significantly reduced due to lost pressure. There are differences in manufacturing details, most notably the material used, either aluminum or plastic. These have and dates. The 81mm shell has a "adapter" ring used to mate the fuze. Without that ring, larger artillery fuzes will fit, but it doesn't look like that was the intent. The rounds were packed in their shipping tubes ready to use.

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