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At a glance
M39 cannonlarger figure on 0 of 2
PCL-171larger figure on 2 of 2
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Length
Single source1.83 m[source]
Length
Single sourceConfiguration
| Specification | M39 cannon | PCL-171 |
|---|---|---|
| Type | Single-barrel autocannon[source] | Self-propelled howitzer[source] |
| Place of origin | United States[source] | China[source] |
| In service | 1952–present[source] | 2020–present[source] |
| Designer | Ford Motor Company[source] | — |
| Designed | 1951 |
6.54–7 m (21.5–23.0 ft)[source]
Maximum; Maximum speed
Single source120 km/h (75 mph)[source]
YC6DV1 V-type six-cylinder water-cooled supercharged inter-cooled diesel engine
Single sourceYC6DV1 V-type six-cylinder water-cooled supercharged inter-cooled diesel engine 295 hp (220 kW)[source]
Rate of fire
Single source1,500 rpm[source]
Muzzle velocity
Single source1,030 m/s (3,300 ft/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| — |
| Manufacturer | Pontiac, Ford, FMC Corporation, and others[source] | — |
|---|
| No. built | 35,500+[source] | — |
|---|
| Variants | M39, M39A1, M39A2, M39A3[source] | — |
|---|
| Cartridge | 20×102mm[source] | — |
|---|
| Barrels | Single barrel (progressive RH parabolic twist, 9 grooves)[source] | — |
|---|
| Action | five-chamber revolver[source] | — |
|---|
| Used by | — | People's Liberation Army[source] |
|---|
| Shell | — | 122 mm (4.8 in)[source] |
|---|
| Breech | — | Semi-automatic vertical wedge type breech block[source] |
|---|
| Main armament | — | 122 mm howitzer gun[source] |
|---|
| Suspension | — | hydropneumatic suspension[source] |
|---|
| Reported operators | — |
|
|---|