Recoil-less Guns

Kunal Biswas

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The system combines recoil-less Davis-type launch with countermass comprising of iron powder, and additional rocket booster, attached to the projectile. Rocket booster ignites once projectile is at safe distance from the shooter, and further accelerates the missile.
Interesting development..
 

Bhadra

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Recoilless rifle


From Wikipedia, the free encyclopedia

A recoilless rifle (RCLR) or recoilless gun is a lightweight weapon that fires a heavier projectile that would be impractical to fire from a recoiling weapon of comparable size. Technically, only devices that use a rifled barrel are recoilless rifles. Smoothbore variants are recoilless guns. This distinction is often lost, and both are often called recoilless rifles.[1]

The key difference to rocket launchers (whether man-portable or not) is that the projectile of the recoilless rifle has no propulsion of its own - once out of the rifle, it does not accelerate further, like a missile or rocket would.
Normally used for anti-tank roles, the first effective system of this kind was developed during World War II by William Kroeger and Clarence Musser.[2]

Recoilless rifles are capable of firing artillery-type shells at a range and velocity comparable to that of a normal light cannon, although they are typically used to fire larger shells at lower velocities and ranges. The near complete lack of recoil allows some versions to be shoulder-fired, but the majority are mounted on light tripods and are intended to be easily carried by a soldier. A few, such as the British 120mm L4 MoBAT and L6 Wombat could only practically be transported by jeep or truck, or mounted on an armoured personnel carrier.

Recoilless rifle - Wikipedia, the free encyclopedia
 

Bhadra

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Bazooka is a recoiless rocket anti-tank weapon.
Azzoka 3.5 RL

The M20A1 and M20A1B1 rocket launchers are two-piece smooth-bore weapons of the open tube type and are fired by an electrical firing mechanism, which contains a magneto that provides the current and is located in the trigger grip.

These launchers are designed to be fired from the shoulder in standing, kneeling, sitting, or prone position.

To reduce weight, the barrels and many of the components are made of aluminum.

These launchers are designed to launch high explosive rockets and smoke rockets against ground targets. These high-explosive antitank rockets are capable of penetrating heavy armor at angles of impact greater than 30°.

Replaced the M9A1 2.36 inch (60 mm) rocket launcher. The M20 rocket launcher was used extensively during the Korean War, where its HEAT rocket proved effective against T34 tanks. No longer in U.S. service. Replaced by the M72 LAW.

M20 3.5 Inch Rocket Launcher

Bazzokas are nowhere RCL guns or rifles.....
 

Zebra

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Starstreak Anti-Aircraft Guided Missile System, UK





 
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olivers

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A very interesting article. Makes me question our blind pursuit of javelins. Of course the javelins are better in a lot of areas. Maybe, just maybe the answer isn't all javelins or spikes. It's a mixture of the old and the new ... Read the part about Afghanistan and mud huts and damping. Across the desert in India the houses are em similar and damping is the same? Maybe we need a few of these RCL's or a lot many of them manufactured in India along with a splattering of Javelins in a good mix ratio. Also RCL's are more effective in entrenched conflict areas where they can be placed in bunkers which are enclosed? (I don't belong to the armed forces. Maybe someone with real life experience can comment on these ideas and elaborate why we need Javelins or replace all of our old RCL's ... I am not suggesting we don't get any Javelins, just curious why we need to replace all of them or if we are planning to just augment the RCL's we already have ...)

Ancient U.S. Weapon Makes a Surprise Reappearance in Syria | Danger Room | Wired.com

Ancient U.S. Weapon Makes a Surprise Reappearance in Syria
BY BRENDAN MCNALLY05.31.136:30 AM


Watch enough YouTube videos of the fighting in Syria, and you'll start to notice it: a long-tubed gun, mounted on the back of either a jeep or large, fast pickup. Usually it's blasting bunkers, blockhouses, fortified positions, or places where snipers are hiding. It even goes after tanks. And whenever it fires, the gun seems to kick up way more hell behind it than what it sends out the barrel's front end. It's the M40 106mm recoilless rifle, an American-made, Vietnam-vintage weapon that got dropped from the Army and Marine inventory back during the early 1970s. Until recently, the 106mm hadn't seen much action in the irregular wars that have swept the globe. Then M40s somehow came into the hands of rebels in Libya and Syria. Suddenly, the 106mm – light, cheap, easily transportable, simple to operate, and packing a punch all out of proportion to its modest size — has emerged as a possible Great Asymmetric Weapon of the Day.

Although the U.S. military no longer officially uses the M40, they still keep some around. A few found their way to Afghanistan where they were put to use by certain Special Forces units. The Danish and Australian armies, which acquired them from the U.S. decades ago under the Foreign Military Sales (FMS) program, used them extensively during their ground operations there.

In Libya, the M40 was used primarily in urban warfare, killing tanks and fortified positions. How exactly it found its way into the hands of the rebels there is a bit of a mystery. The M40s showed up in Libya along with thousands of brand new Belgian FN rifles, apparently from Western arsenals. That lead many to suspect they were supplied by Western intelligence. The M40s currently being seen in Syria might be coming either from the same sources that supplied the Libyan rebels or even from the Libyans themselves.

There is also a strong possibility that these weapons might actually be of Iranian origin. Iran's state-owned weapons arsenal, the Defense Industry Organization, has been manufacturing what was originally a licensed-version of the M40. Now called the "Anti-Tank Gun 106," it is being offered on the open market, and are probably being supplied to the Syrian Army, which have since lost them to the rebels.

While the M40 makes a big comeback in the Middle East, dozens of other armies all over the world never stopped using it. The Danish and Australian armies have used the 106mm in Afghanistan with excellent results. It turns out that in many instances they have outperformed the expensive, high tech, anti-tank rockets like the TOW, the Javelin and others that were supposed to replace the M40 four decades ago.

While no one is suggesting the replacements aren't good weapons, all have their shortcomings. Some, like the TOW, don't operate well in extreme environments. Others, once fired, sometimes require too many rotations before they arm; that limits their effectiveness in close-in situations. Probably the biggest problem is that whenever targets are inside mud-walled buildings (which, in places like Afghanistan, is much of the time), the explosion's force tends to get seriously dampened. Enter the M40: a home-grown weapon, already in stock, developed and manufactured at the Watervliet Arsenal, the U.S. Army's own gun factory, and at Benet Laboratories, which has quietly continued the weapon's advancement during the decades it's been out of use.

As weapons go, the M40 is almost amazingly crude. The first thing you notice about the back of the gun is that, unlike conventional cannon, the breech block has big openings. The rounds it fires look different too; the shell casings are also open, more like cages than canisters. But what makes it so different from conventional artillery is its way of dealing with recoil. Rather than try to contain it, as conventional guns do, recoilless rifles endeavor to balance it by offering the propellant gasses the easiest escape possible. That's why the breech mechanism is vented and open, functioning like a rocket nozzle. It is also why recoilless rifles generate the massive and deadly back blast that can make them such a frightening weapon to be around.




Though the idea behind the recoilless rifle goes back five hundred years, it wasn't until the late 19th Century that the key technologies were developed to actually make recoilless rifles practical. The Germans built a 75mm recoilless rifle used by their airborne troops during the invasion of Crete that proved to be a decisive weapon in that campaign. The U.S. developed its own version of the 75mm gun, but it did not reach the battlefield until the last weeks of the European war.

The present-day M40 106mm was developed following the Korean War and used extensively during the Vietnam War. Since the North Vietnamese almost never used their tanks, the M40 found other tasks for the weapon besides hitting armor. Sometimes it got used against enemy bunkers, but mostly, following the introduction of a steel dart-laden "beehive" round, it became a fearsome anti-personnel weapon. But in Vietnam, the M40 is best remembered for its association with the Ontos, possibly the most downright eccentric armored vehicle ever concocted for the U.S. Military. It was a tiny tank, armed with six M40 recoilless rifles, which were mounted externally on its tiny turret. The Ontos fought in countless skirmishes, but where it became part of Marine legend was in the battle for Hue during the Tet Offensive. There it was involved in some of the fiercest urban fighting in the Corps history. According to one source, the only reason the Fifth Marine Regiment survived Hue was because of the Ontos and the 106mm recoilless rifle.

And then the U.S. military moved on — or so it seemed. While the M40 was technically replaced, the Army's scientists, like Dark Ages monks, have continued preserving and even improving it until the day comes for its resurrection.

Brendan McNally is a defense writer and author endlessly bouncing between Texas and the Czech Republic.
 

Damian

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A very interesting article. Makes me question our blind pursuit of javelins. Of course the javelins are better in a lot of areas. Maybe, just maybe the answer isn't all javelins or spikes. It's a mixture of the old and the new ... Read the part about Afghanistan and mud huts and damping. Across the desert in India the houses are em similar and damping is the same? Maybe we need a few of these RCL's or a lot many of them manufactured in India along with a splattering of Javelins in a good mix ratio. Also RCL's are more effective in entrenched conflict areas where they can be placed in bunkers which are enclosed? (I don't belong to the armed forces. Maybe someone with real life experience can comment on these ideas and elaborate why we need Javelins or replace all of our old RCL's ... I am not suggesting we don't get any Javelins, just curious why we need to replace all of them or if we are planning to just augment the RCL's we already have ...)
The concept is that FGM-148 Javelin, or Spike are ATGM's with top-attack capability, which means these ATGM's can effectively engage most modern MBT's, while RCL's will be inefective because of their smaller calliber HEAT warheads that penetrates less armor, and that they are restricted in most situation to attack better protected front and sides.

RCL's however are very good as fire support weapon with variety of ammunition types that are also cheap, also RCL's are more cost-effective weapon against lightly armored vehicles.

So both ATGM's and RCL's have their place.

Besides this, there are also RPG's that can supplement RCL's and ATGM's, or act as replacement for RCL's. There is variety of RPG types, from reusable ones, that can act as supplement or replacement for RCL's, to disposable, single shot ones that can act as lightweight supplement for RCL's and reusable RPG's.

Each weapon type then have it's place, and it seems that the best solution is to use them as a system, where each type, supplement the rest.
 

syncro

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BREDA FOLGORE 80 mm









The Folgore (Thunderbolt) is an Italian 80 mm recoilless anti-tank weapon developed and manufactured by Breda Meccanica Bresciana. It weighs 18.9 kilograms (with bipod) and 25.6 kilograms (with tripod). Development of the Folgore started in 1974 and it was adopted by the Italian Army in 1986. Over 800 Folgores had been produced.

The Folgore's launcher is a recoilless rifle that fires a boost-after-launch rocket projectile. It consists of a long, reusable launch tube constructed of high strength nickel-cobalt-steel. The use of nickel-cobalt-steel not only keeps the weight at a reasonable level, but also enables the firing of projectiles at a much higher velocity, than other weapons previously in its class. To load the Folgore, the nozzle clamp has to be released and tilted to the side to insert the ammunition. The cartridge case is perforated with holes along its sides to allow gases to escape to the back and out of the nozzle on firing to achieve a recoilless effect. One kilogram of propellant in the cartridge case is used to fire the projectile. After the projectile exits the muzzle, six fins snap into place. The fins are canted slightly to impart spin. After the projectile has coasted a safe distance a rocket motor ignites, boosting the projectile from 385 m/s to 500 m/s, giving the projectile an almost flat trajectory to 500 m

The Folgore can be operated in two configurations. The first is as a shoulder fired weapon, where it has a maximum effective range of 500 meters. The other and more commonly used configuration when the Folgore began production in the 1980s is with the weapon mounted on a bipod or tripod with a coincidence type of range finder by Officine Galileo, which imposes a blinking light dot in the gunners sight, showing the gunner the time of flight and the aim point and the true impact point, similar to the type developed for the early Swedish Carl Gustav. Today there are many laser rangefinders offered by various firms for even greater accuracy at longer ranges. This configuration requires a two-man crew and allows effective fire at ranges up to 1,000 meters with the HEAT round and 2,500 meters with the HE round. The weapon is fitted with a 5x scope, a night vision sight can also be mounted.

The HEAT round has a muzzle velocity of 385 m/s and reaches a maximum velocity of 500 m/s with its rocket propulsion. The HEAT rocket has a flight time of only three seconds to a range of 1,000 meters. Maximum trajectory height is 2.2 meters at 500 meters and less than three meters at 700 meters. The accuracy and high velocity give the Folgore a long effective range in comparison to similar systems. The HEAT warhead is filled with composition-B.

The 5.2-kilogram HEAT round penetrates over 450 mm of RHA (rolled homogeneous armor), which is not enough to defeat the frontal armor of modern tanks or most ERA (explosive reactve armor)-protected armored surfaces. It is, however, useful as an assault support weapon against bunkers and sandbag emplacements and any armored vehicle other than a main battle tank

The HE round has a max range of 4 km, but the pratically range is around 2500 meters.

The Folgore is a very accurate weapon. A skilled team can fire one round every 15 seconds, but this rate of fire can only be maintained for two minutes before overheating the tube.
 
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ghost

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Re: Army wants Light Specialist Vehicle

who needs RCL when we can have these




 
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ghost

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Re: Army wants Light Specialist Vehicle

where as lsv is concerned army should be looking at "something like this"

http://defense-update.com/20130909_ulv.html


video of ultra light vehicle


and if such type is too expensive we can always depend on our own :lol:

 
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Kunal Biswas

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Re: Army wants Light Specialist Vehicle

@ghost, Have you given a read the last page .. ?
 
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ghost

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Re: Army wants Light Specialist Vehicle

That is why, Suggest you go through that and if have questions do ask ..
i was just expressing my opinion that rcl gun have become obsolete against modern tank armour and firepower which will pick you up and destroy you before you react.

in case of namica against tank fire fire fire fire

in case of javeline against tank fire and hide or fire and run

in case of carl gustav against tank fire and hide or fire and run

in case of rcl against tank fire and burn
 

bennedose

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Re: Army wants Light Specialist Vehicle

i was just expressing my opinion that rcl gun have become obsolete against modern tank armour and firepower which will pick you up and destroy you before you react.
This is true for the particular scenarios you have in your mind. There are scenarios where a jeep mounted RCL can go to places and take cover where tanks cannot get away. Besides, RCLs are not for tanks alone. They can be used for support vehicles, enemy bunkers, troublesome machine gun posts.

Imagine airdropping 4 jeep mounted RCLs into a zone where friendly forces are under attack and need something to rapidly outflank and take out something. RCLs on jeeps can technically work in Aksai Chin where no one is going to get too many tanks. It's different in Punjab or Rajasthan. Even in Punjab - jeeps may be able to rapidly ford rivers with lighter/smaller bridges while tanks may have to wait for heavy duty fording hardware. Helos may be simply able to lift jeeps and RCLs over obstacles which may not be possible for tanks.

it is unwise to restrict scenarios to a limited one where tanks are considered invulnerable ergo jeep mounted RCLs are useless.
 

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