Editing Leopard 1 (section)

{{Short description|Main battle tank family of German origin}}
{{Use dmy dates|date=October 2021}}

{{More citations needed|date=October 2007}}

{{Infobox weapon
| is_UK              = yes
| name               = Kampfpanzer Leopard 1
| image              = File:Leopard 1A5.jpg
| image_size         = 300
| caption            = German Leopard 1A5 at the 2015 Military Day in Uffenheim
| origin             = West Germany
| type               = [[Main battle tank]]
| is_vehicle         = yes
<!-- Service history -->| wars               = {{Tree list}}
* [[Yugoslav Wars]]
** [[Bosnian War]]
* [[Kurdish–Turkish conflict (1978–present)|Kurdish–Turkish conflict]]
* [[War in Afghanistan (2001–14)|War in Afghanistan]]
* [[Russo-Ukrainian War]]
**[[Russian invasion of Ukraine]]
{{Tree list/end}}
<!-- General specifications -->| service            = 1965–present
| designer           = [[Porsche]]
| manufacturer       = [[KraussMaffei]]<br />[[OTO Melara]]
| design_date        = 1956–1961
| production_date    = 1965–1984
| number             = 6,565
----4,744 main battle tanks<br />1,741 utility and anti-aircraft vehicles<br />80 prototypes and pre-series vehicles
| length             = 9.54/8.29 m (gun forward/rearward)
| width              = {{cvt|3.37|m}}
| height             = 2.39/2.7 m (turret roof/absolute)
| weight             = 42.2 tonnes (increased on later models from original 40 tonnes)<ref name=TGelbart109 />
| suspension         = Torsion bar
| speed              = {{cvt|65|kph}}
| vehicle_range      = {{cvt|600|km}} (on road), {{cvt|450|km}} (cross-country)
| armour             = Steel: {{cvt|10|–|70|mm|in}} [[Rolled homogeneous armour|RHAe]]
| primary_armament   = 1 × 105&nbsp;mm [[Royal Ordnance L7]]A3 L/52 [[rifled]] gun
(13 rounds in turret 42 rounds in hull)
| secondary_armament = 2 × 7.62 mm [[MG3|MG 3]] or [[FN MAG]] ([[coaxial weapon|co-axial]] and commander's hatch) (5500 rounds)
| engine             = [[MTU Friedrichshafen|MTU]] MB 838 CaM 500, 10-cylinder, 37.4 litres, multi-fuel engine
| crew               = 4 (commander, driver, gunner, radio operator/loader)
| engine_power       = {{cvt|830|PS|hp kW}} at 2,200 RPM
| pw_ratio           = {{cvt|19.6|PS|hp kW}}/tonne
}}

The '''Kampfpanzer Leopard''', subsequently '''Leopard 1''' following the introduction of the successive [[Leopard 2]], is a [[main battle tank]] designed by [[Porsche]] and manufactured by [[Krauss-Maffei Wegmann|Krauss-Maffei]] in [[West Germany]], first entering service in 1965. Developed in an era when [[HEAT]] warheads were thought to make conventional heavy armour of limited value, the Leopard design focused on effective firepower and mobility instead of heavy protection. It featured moderate armour, only effective against low caliber autocannons and heavy machine guns, giving it a high [[power-to-weight ratio]]. This, coupled with a modern suspension and drivetrain, gave the Leopard superior mobility and cross-country performance compared to most other main battle tanks of the era, only being rivaled by the French [[AMX-30]] and Swedish [[Strv 103]]. The main armament of the Leopard consisted of a German license-built version of the [[United Kingdom|British]] [[Royal Ordnance L7]] 105&nbsp;mm rifled gun, one of the most effective and widespread tank guns of the era.

The design started as a collaborative project during the 1950s between West Germany and [[France]], and later joined by [[Italy]],<ref name=TGelbart109>{{cite book|last=Gelbart|first=Marsh|title=Tanks main battle and light tanks|url=https://archive.org/details/tanksmainbattlet00gelb|url-access=limited|year=1996|publisher=Brassey's UK Ltd|pages=[https://archive.org/details/tanksmainbattlet00gelb/page/n109 109]–110|isbn=1-85753-168-X}}</ref> but the partnership ended shortly after and the final design was ordered by the [[Bundeswehr]], with full-scale production starting in 1965. In total, 6,485 Leopard tanks have been built, of which 4,744 were battle tanks and 1,741 were utility and anti-aircraft variants, not including 80 prototypes and pre-series vehicles.

The Leopard quickly became a standard of many European militaries, and eventually served as the main battle tank in over a dozen countries worldwide, with West Germany, Italy and the Netherlands being the largest operators until their retirement. Since 1990, the Leopard 1 has gradually been relegated to secondary roles in most armies. In the [[German Army]], the Leopard 1 was completely phased out in 2003 by the Leopard 2, while Leopard 1-based vehicles are still widely used in utility roles.

The Leopard 2 has replaced the Leopard 1 in service with many other nations, with derived vehicles using the Leopard 1 hull still seeing service. Currently, the largest operators are [[Greece]], with 520 vehicles, [[Turkey]], with 397 vehicles, [[Brazil]] with 378 vehicles and [[Chile]] with 202 vehicles. Most of these vehicles have been upgraded with various improvements to armour, firepower and sensors to maintain their ability to engage modern threats.