Changes

The Abrams Tank System Program has been using Depleted Uranium armor since the 1980's. Also, incorporating a modular designed Honeywell 1,500 HP smokeless gas turbine engine, easily removed, serviced and upgraded. The Abrams tank has a governed top speed of 45mph, with a range of 265 miles. Speeds of up to 60mph have been reached with the governor removed, but this results in damage to the transmission and generally makes the tank unservicable quite quickly. The fire control system allows the gunner to fire accurately while moving against either stationary or moving targets. The commander's station of the Abrams M1A1 is equipped with six periscopes, providing a 360° view. <ref>[http://www.army-technology.com/projects/abrams/ M1A1 / M1A2 Abrams Main Battle Tank, USA, Army-technology.com]</ref>  The tank weighs nearly 70 Tons making it one of the heaviest in the world. The US Army is currently trying to develop a lightened 60 ton variant providing the same level of protection by using advanced materials such as Dorchester armour. The original M1 was armed with a Royal Ordnance Factories 105mm L5 rifled gun built under licence as the M68, but in the M1A1 and later this was replaced with a licence-built Rheinmetall L44 120mm smoothbore gun.

The Abrams Tank System Program has been using Depleted Uranium armor since the 1980's. Also, incorporating a modular designed Honeywell 1,500 HP smokeless gas turbine engine, easily removed, serviced and upgraded. The Abrams tank has a governed top speed of 45mph, with a range of 265 miles. Speeds of up to 60mph have been reached with the governor removed, but this results in damage to the transmission and generally makes the tank unservicable quite quickly. Following a series of critical reports beginning in 1990 and gaining urgency after the 2003 Iraq campaign, the US Army are considering a number of options for replacing the gas turbine with a conventional diesel engine. The main problem is the very high fuel consumption (twice that of an equivalent 1,500hp tank diesel) which both reduces the tank's range and increases the logistics burden. The high-temperature jet exhaust is also an issue, as it both creates a large thermal target and is dangerous to infantry working close to the tank, which is a serious issue in urban operations. The fire control system allows the gunner to fire accurately while moving against either stationary or moving targets. The commander's station of the Abrams M1A1 is equipped with six periscopes, providing a 360° view. <ref>[http://www.army-technology.com/projects/abrams/ M1A1 / M1A2 Abrams Main Battle Tank, USA, Army-technology.com]</ref>  The tank weighs nearly 70 Tons making it one of the heaviest in the world. The US Army is currently trying to develop a lightened 60 ton variant providing the same level of protection by using advanced materials such as Dorchester armour. The original M1 was armed with a Royal Ordnance Factories 105mm L7 rifled gun built under licence as the M68, but in the M1A1 and later this was replaced with a Rheinmetall L44 120mm smoothbore gun licence-built as the M256.