HENG LONG 3918/3918-1 RC tank U.S. M1A2 ABRAMS 1/16 spare parts No. 3918 plastic rocker arm 2pcs(L/R)–(HL-3918, Heng Long 3918 M1A2 Abrams RC Scale Model Tank)
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Heng Long USA M1A2 Abrams Professional Edition 1/16 Scale Battle Tank – RTR
Heng Long 1 / 16 scale M1A2 Abrams MBT pro-rtr-hlg3918-002
As one of the most effective combat systems in the world in recent 40 years, M1 Abrams is recognized as the “spearhead” of American mechanized infantry worldwide. Use this fully functional remote control tank to drive a period of history! This professional version uses metal gears inside and unpainted all metal track and walking device outside to improve weight and durability. Unpainted metal loadwheels are also equipped with rubber tires for added realism, and each wheel is equipped with double internal bearings to reduce friction! Henglong has been producing remote control tanks for more than 20 years. Their products provide an ideal starting point for new customers who want to explore the world of remote control tanks. All of motion RC’s Henglong 1 / 16 ratio tanks use the latest TK6 mfcb, which has excellent control, performance, playability and upgrade potential!
Use durable tracks that are easy to maintain to conquer the terrain confidently. This professional edition has unpainted metal tracks, loadwheels, idlers and drive sprockets. All of these have unpainted natural cast metal finishes. Dual bearings and metal suspension arms enhance drive handling!
Independent suspension and metal gearbox
Reliable metal gearboxes deliver power, while independent suspensions provide traction on rough surfaces.
This professional edition has all metal tracks, loadwheels, idlers and drive sprockets. All of these externally visible components are unpainted and have a natural metal finish. The picture with the painted plastic hub is a cheaper “upgrade.”.
Omnidirectional proportional control
The latest generation of TK6 mfcb provides smooth driving response and personalized configuration options.
Infrared combat readiness
Friendly infrared (“IR”) combat with other tanks equipped with TK6, which can not only strike the opponent, but also be hit by the opponent! Every hit will send out sound and action signals, until the fifth hit makes the tank invalid. After 10 seconds, the paralyzed tank will restart and can join the battle again!
Airsoft BB launch
Safely fire a 6mm plastic air gun BB at the attached paper target within a short distance. *Take safety precautions and wear protective goggles.
A perfect balance of scale detail and practical RC tanks, each Henglong tank arrives at the factory painted and includes decorative accessories to further enhance the tank’s realism.
320 degree turret traverse, 30 degree cannon elevation, programmable track recoil and four different sound settings give you complete control.
The LED indicates the standby and active mode of the tank, and also flashes when it is “hit” in infrared combat.
The “exhaust effect” based on glycerol simulates engine exhaust to increase the realism.
The convenience of “ready to run” (RTR) makes it easy for new players to join the world of RC tanks!
All metal track material, sprocket, highway and idler (unpainted natural metal finish)
Double bearing and rubber cap tires on all wheels
The latest generation of TK6 multi function control board (mfcb)
Proportional acceleration, steering, turret traverse and gun height / reduction
Programmable radio settings such as recoil, wheel sensitivity, acceleration, overall sensitivity in high and low speed mode
Smoke effect (on / off)
Headlights and stop lights (on / off)
Volume (five settings including off)
Four different sound settings. Each contains a unique engine start, idle, accelerate, traverse, lift, machine gun, cannon launch and shut down sound
“Track recoil” (low, medium, high) – this briefly vibrates the tank backward to simulate recoil when the main gun fires
“Recoil of barrel” means to physically retract the barrel during shooting
Launch 6 mm plastic BB (10 meters, the lowest accuracy and limited speed, but still should be treated with caution and provide adequate eye protection)
Launching stealth infrared signal, as a part of Henglong infrared combat system, will disable other tanks when hit five times in simulated combat. Up to 20 tanks can fight at the same time
Independent suspension on all wheels with metal suspension arms
Henglong us M1A2 Abrams professional 1 / 16 ratio main battle tank – RTR
2S 7.4v 1800mAh Li ion battery with Tanaka connector
2S USB lipo / Li ion battery charger
12 channel 2.4GHz radio transmitter
Magnetic infrared (IR) combat system receive
Painted cosmetics accessories
Self adhesive Decal
6mm plastic BBS (50 packs
2X spare track link
Abrams is the third generation U.S. main battle tank designed by Chrysler defense (now general dynamics land systems) , and named after general Clayton Abrams. Designed for modern armored ground warfare, it is now one of the heaviest tanks in service, weighing nearly 68 short tons (62 metric tons). It introduces a number of innovative features, including multi fuel turbine engine, precision chobam composite armor, computer fire control system, separate ammunition storage in a blasting compartment, and NBC protection for crew safety. The original model of M1 was equipped with an authorized 105mm Royal ordnance L7 gun, while later models were equipped with an authorized rheinmetal 120mm L / 44. Abram.
M1 Abrams was developed after the failure of the mbt-70 project to replace the outdated M60 button. There are three major operational versions of Abrams, M1, m1a1 and M1A2 (warrior chariot). Each new iteration will be improved in terms of weapons, protection and electronic equipment. Extensive improvements have been made to the latest versions of m1a2c and D (previously known as M1A2 system enhancement package version 3 or sepv3 and M1A2 sepv4, respectively), such as improved composite armor, better optical, digital systems and ammunition[ 10] Abrams was originally scheduled to be replaced by the future combat system xm1202, but due to its cancellation, the U.S. military chose to continue to maintain and operate the M1 Series in the foreseeable future, improving optics, armor and firepower through upgrades.
The M1 Abrams was commissioned in 1980 and is currently the main battle tank of the U.S. Army and Marine Corps. The export version was used by the military in Egypt, Kuwait, Saudi Arabia, Australia and Iraq. Abramstank was used in the Persian Gulf War for the first time, and fought in the Afghanistan war and the Iraq war served by the United States. The Iraqi abramstank also operated in the war against the Islamic state of Lebanon, and was used in Saudi Arabia during the war. The civil war in Yemen.
Main entry: mbt-70
In the 1960s, the US Army and the German army worked together to develop a single design that would replace the M60 button and Leopard 1. The overall goal is to have a single new design with improved firepower to handle new Soviet tanks like the t-62, while providing better protection for the t-62’s new 115mm smoothbore gun, especially the high explosive anti tank (heat) bullet[ 11] [validation failed]
The resulting design mbt-70 fully adopts new technology. The hydro pneumatic suspension provides excellent off-road riding quality and also allows the driver to raise or lower the entire fuel tank, with the lowest position so that the top of the tank is only 6 feet (1.8 m) above the ground. The new 1500 horsepower class engine powers the design, with speeds of up to 43 miles per hour (69 km / h), and introduces two new guns, a 152 mm us design, whose main long-range weapon is the hellera missile, while the German introduces a new 120 mm sliding bore design[ 11]
Despite its strong design capabilities, its weight continues to grow, as does its budget. By 1969, the unit cost was five times the original estimate[ 11] In August 1969, the Senate stopped funding the program until the government accounting office could audit it[ 12]
Due to the problem of mbt-70, the U.S. army launched xm803, which used some mbt-70 technologies, but deleted some more troublesome functions. This only successfully produced an expensive system with performance similar to the M60[ 13] Congress abolished mbt-70 in November and xm803 in December 1971, but allowed the army to redistribute the remaining $20 million to develop new mbt-70[ 14]
TACOM began to review specific targets. After several rounds of investment, it was decided to provide armor to resist the “serious threat” posed by t-62’s 115mm guns, use the expected improvements to APFSDS ammunition in the 1980s, and launch high explosive anti tank (heat) bullets from t-62’s new 125mm guns 64 and T-72[ 15]
To this end, a new design basis, LK 10372, appeared in February 1973. It had to beat any hit from a Soviet gun within 800 meters and 30 degrees on either side. The tank will be equipped with a 105mm M68 main gun (a licensed version of the Royal ordnance L7) and a coaxial 20mm bushmaster .
After reviewing the experience of Yom Kippur War, some design changes were made. The newly manufactured Burlington armor from the British Army laboratory was incorporated to improve protection, especially against high temperatures, and combined with the new armor package, the original goal of keeping the weight below 50 short tons (45 tons) was abandoned. Bushmaster was considered redundant and replaced by M240 machine gun, the American version of FN mag. As TACOM continues to improve its detailed design, initial samples of the armor system are sent to the Ballistic Research Laboratory for testing[ 15]
At that time, the U.S. military’s procurement system had problems because of the pursuit of the best design. This usually results in the cancellation of plans due to cost overruns and the use of obsolete systems by troops, as in the case of mbt-70. There is a strong movement within the army to get new designs within budget to prevent a repeat of the mbt-70 experience. For the new design, the army said the unit cost would not exceed $507000 in 1972 dollars (equivalent to $3136785 in 2020), and handed over the contract to industry. Chrysler and general motors are bidding[ 16]
During the initial prototyping period, a dispute broke out between Germany and the United States over the use of a 105mm gun. The army plans to introduce several new types of ammunition for 105 to greatly improve its performance, especially the xm-774, which uses depleted uranium. These bullets will give it the performance it needs to easily defeat any Soviet tank. Some people worry that depleted uranium is not allowed in Germany, perhaps only in peacetime, so the improvement of tungsten core m735 is also considered.
During the same period, efforts have been made to improve NATO logistics by maximizing standardization of ammunition. The Germans are using their 120mm guns on Leopard 2k and point out that the British have also introduced their own 120mm guns to meet their long-range operational guidelines. Despite initial doubts about the need for a 120mm gun, a question was raised at some point that the Soviet Union might introduce a tank with composite armor. In this case, even without depleted uranium, 120 will provide them with the performance they need to defeat this development.
By 1977, it was decided to eventually move the new tank to the 120mm main gun. After a frontal test between royal ordnance l11a5 and rheinmetal rh-120, the latter was selected. The turret design of the two prototypes has been modified, and any kind of gun can be installed. Although L11 / m256 120mm gun was selected as the main weapon of M1 Abrams in 1979, the improved ammunition of the gun was not fully developed, so its service was postponed to 1984[ 17] Early production versions of M1 Abrams (M1 and ipm1) were equipped with m68a1  for two reasons. First, in the 1980s, the United States still had a large number of M60 Barton tanks equipped with m68e1 guns and a large inventory of 105mm ammunition. The installation of M1 and m68a1 guns is considered as an economical and practical solution, which can make the two types of tank ammunition common[ 19] Secondly, m68a1 can use the newly developed M900 APFSDS  depleted uranium bomb, which has higher penetration performance than m774[ twenty-one.
Chrysler xm1 prototype
GM xm1 prototype
The prototype was delivered by Chrysler defense and General Motors (GM) in 1976 and is equipped with the licensed m68e1 105mm Royal ordnance L7. Together with the leopard 2 “2K” prototype, they entered a frontal test at the Aberdeen Proving Ground for comparison. Tests show that GM’s overall design is superior, providing better armor protection, as well as better fire control and turret stability systems[ 16] These early pilot prototypes are temporarily equipped with the m68e1 105mm main gun, while the preferred 120mm main gun and its ammunition are in the design and component development stage. These prototypes use a combined mount to evaluate 105mm and 120mm guns[ 22]
During the test, both designs of power packs proved to be problematic. Chrysler’s design uses Lycoming engine’s agt1500 gas turbine engine, which has an extensive heat recovery system, in an attempt to improve its fuel economy to a level similar to that of traditional internal combustion engines. It turns out that’s not the case. The engine consumes much more fuel than expected, burning 3.8 gallons per mile. GM design uses a new design of variable compression diesel engine, but it turns out to be problematic[ 16] There is no evidence that GM is considering using mbt-70’s MTU engine, which is superior to both and has been selected for leopard 2K.
By the spring of 1976, the decision to choose GM design was basically completed. In addition to providing better overall performance, Chrysler’s engines are also worrisome in terms of reliability and fuel consumption. Compared with Chrysler’s $221 million, GM’s plan is also slightly cheaper overall, at $208 million. In July 1976, Lieutenant Colonel George Morman prepared a pile of letters informing Congress of the decision to advance the design of general motors. All that is needed is the final signature of secretary of Defense Donald Rumsfeld[ 16]
In January 1978, a program  was launched to develop an enhanced version of the 105mm gun, the m68a1 , as a possible alternative to the M1 Abrams. Compared with the xm24 / L52 barrel used on the M60 tank, the new xm24 / L55 barrel is 18 inches (45.72 cm) long[  it has higher bore pressure,  reinforced breech [a] and higher muzzle velocity[ 27]
Chrysler was chosen
Final M1 prototype
On July 20, U.S. Army Secretary Martin Hoffman and a group of generals visited Under Secretary of defense bill Clements and defense research and engineering director Malcolm curry on their decision. Clements and Currie were surprised when they criticized their decision and asked to choose a turbine. Donald Rumsfeld listened to the debate in the afternoon and asked for a 24-hour review of the issues. The army team spent the night writing the briefing and presented it to Rumsfeld the next morning, who later announced a four month delay[ 16]
Within days, GM was asked to show off a new design for a turbine engine. Ed Miller, assistant director of research and development, said, “it is becoming increasingly clear that the only solution acceptable to clemenz and curry is the turbine… It is a political decision that has been reached to award the award to Chrysler for all intents and purposes, as they are the only contractor with a gas turbine.”[ 16] However, the advantage of the Chrysler design is that the entire power pack has room to be replaced by any number of engine designs, including diesel engines, if needed[ 15]
Turbine engines do not seem to be the only reason for this decision. Chrysler is the only company that seems to be very interested in tank development. M60 has brought huge profits to the company, and most of the profits depend on the plan. By contrast, GM’s arms sales account for only 1% of its revenue, compared with 5% of Chrysler’s, and the offer was submitted only after the Pentagon made a “special request.”[ 16]
On November 12, 1976, the Department of defense awarded Chrysler a $20 billion development contract[ 16]
Low initial rate production (lirp) of vehicles was approved on May 7, 1979[ 4] In February 1982, after Chrysler built more than 1000 M1, general dynamics land systems (GDLs) purchased Chrysler defense company[ 28] the M1 Abrams was the first vehicle to use chobam armor.
In 1986, the 105mm M1 Abrams tank of the 11th Armored Cavalry Regiment in the grafenw? HR training area, Germany
A total of 3273 M1 Abrams tanks were produced from 1979 to 1985 and first entered the U.S. Army service in 1980. The Lima army tank plant in Lima, Ohio, owned by the government and operated by GDLs, also produced vehicles made by Arsenal in Detroit, which joined the production at the Warren tank plant in Michigan from 1982 to 1996[ 1] Under the supervision of the US Army Research Laboratory (ARL), the US Army laboratory command (labcom) is also actively involved in the design of tanks with m1a1 armored projectiles, m829a2 armor piercing projectiles and improved weapon range[ 29]] the M1 is equipped with a licensed version of the m68a1 105mm Royal ordnance L7. The tank is the first of its kind of chobam armor. The M1 Abrams was the first to use this advanced armor. It consists of metal plates, ceramic blocks and an arrangement of open spaces[ 30] an improved version called m1ip was briefly produced in 1984 and included some minor upgrades. The m1ip model was used in the 1985 and 1987 Canadian Army trophy NATO tank artillery competition.
Trajectory Research Laboratory (BRL) used computer tools in the development of M1, which led to the development of brl-cad. Here, the vector general 3D graphics terminal displays the model of M1.
From 1986 to 1992, about 5000 m1a1 Abrams tanks were produced, equipped with m256 120 mm (4.7 inch) smoothbore gun developed by rheinmetal for leopard 2, improved armor, depleted uranium and other confidential materials, and CBRN protection system. The total production of M1 and m1a1 tanks is about 9000 and the cost of each tank is about US $4.3 million[ 31] by 1999, the cost of tanks was as high as $5 million per vehicle[ 2]
In 1990, the government oversight program criticized M1 in a report for its high cost and low fuel efficiency compared with other tanks with similar power and effectiveness, such as leopard 2. The report is based on data from U.S. Army sources and congressional records[ 32]
With Abrams in service in the 1980s, they were used in the US military with the M60A3 and in various cold war exercises usually held in Western Europe, especially in West Germany, with other NATO tanks. These exercises were designed to counter Soviet forces. By January 1991, however, the Berlin wall collapsed and Abrams was deployed in the Middle East.
Modifications prior to the Persian Gulf War (Operation Desert Shield and Operation Desert Storm) provided better firepower and NBC (nuclear, biological and chemical) protection for vehicles.
Persian Gulf War
Abramstank was on a mission during the 1991 desert storm. Bradley IFV and the logistics team can be seen in the background.
Until the Persian Gulf War in 1991, Abrams had not been tested in combat during Operation Desert Storm. A total of 1848 m1a1 vehicles were deployed to Saudi Arabia to participate in the liberation of Kuwait. The m1a1 is superior to Iraq’s Soviet era t-55 and t-62 tanks, as well as the T-72 versions imported from the Soviet Union and Poland[ 33] Polish officials said that before Iraq’s Taji tank factory was destroyed in 1991, there was no license to produce T-72 (nicknamed Babylon lion) tanks[ 33] like most Soviet export designs, the T-72 did not have a night vision system and modern rangefinders of the time, although they did have some night tanks with old-fashioned active infrared systems or floodlights. A total of 23 m1a1s were damaged or destroyed during the war. Of the nine Abrams tanks destroyed, seven were destroyed by friendly fire, and the other two were deliberately destroyed to prevent capture after damage[  others suffer minor combat damage, which has little effect on their combat readiness. Few M1 tanks were hit by the enemy’s fire, and none of them were directly destroyed by the enemy’s fire, causing no casualties[ 35]
M1a1 can kill other tanks with a range of more than 2500 meters (8200 feet). This range is critical to combat the Soviet designed last generation tanks in desert storms, because the effective range of the Soviet / Iraqi tank main gun is less than 2000 meters (6600 feet). This means that abramstank can hit Iraqi tanks before the enemy gets into range – a decisive advantage in this kind of battle. In the friendly fire accident, the front armor and the front turret armor survived the other m1a1’s APFSDS hit. This is not the case with the side armor of the hull and the rear armor of the turret, as these two areas were inadvertently hit by depleted uranium ammunition at least twice during the battle of Norfolk[ 36]
A destroyed m1a1 was hit by Hellfire missiles on the rear grille and punctured from left to right by a cartridge tank (see exit hole).
During Operations Desert Shield and desert storm, some m1ip and m1a1 were partially modified in theater (Theater) by modification work order (MWO), and additional rolled homogeneous armor plates were welded to the front of the turret[ M1 can be equipped with mining plough and mining roller accessories.
The lessons of the war improved the weapon sight and fire control device of the tank.