Back Mark IX (tenk) BS Tanc Mark IX Catalan Mark IX (Panzer) German Mark IX Greek Mark IX (carro de combate) Spanish Mark IX (tenk) Croatian Mark IX Hungarian Mark IX Italian マーク IX 戦車 Japanese Kereta kebal Mark IX Malay
| Mark IX | |
|---|---|
 Mark IX | |
| Type | Armored personnel carrier |
| Place of origin | United Kingdom |
| Production history | |
| Designer | Lt. G.J. Rackham |
| Manufacturer | Marshall, Sons & Co. |
| No. built | 34 (total) |
| Specifications | |
| Mass | 27 tonnes (27 long tons; 30 short tons) |
| Length | 9.73 m (31 ft 11 in) |
| Width | 2.5 m (8 ft 2 in) |
| Height | 2.64 m (8 ft 8 in) |
| Crew | 4: 1 commander, 1 driver, 1 mechanic, 1 machine gunner; up to 30 men could be carried. |
| Armour | 10 mm |
Main armament | 2 x 0.303 in (7.7 mm) machine guns |
Secondary armament | none, but loopholes for 16 soldiers |
| Engine | Ricardo 6-cylinder petrol engine 150 brake horsepower (110 kW) |
| Power/weight | 5.6 horsepower per tonne (4.2 kW/t) |
| Suspension | unsprung |
Operational range | 20 miles (32 km) |
| Maximum speed | 6.9 km/h (4.29 mph) |
The Mark IX tank was a British armoured fighting vehicle from the First World War. It was the world's first specialised armoured personnel carrier (APC).