The A7 Medium Tank^[a] was a British experimental medium tank design of the period between the two World Wars.

The A7 was designed under the Chief Superintendent of Design at the Royal Ordnance Factory, Woolwich who built three prototypes between 1929 and 1937. The A7 never went into production as all prototypes proved mechanically unreliable.

Detail
Type	Engine	Gearbox	Suspension	Theoretical Top Speed	Weight (tons)	Armament
A7E1 (1929-1931)	120 hp V8 Petrol air cooled Armstrong Siddeley	4-speed Armstrong Siddeley	Leaf Springs	40 kph (24 kph during trials)	14	One 3pdr gun and two .303in Vickers machine guns
A7E2 (1929-1931)	120 hp V8 Petrol air cooled Armstrong Siddeley	Wilson hydraulic planetary	Vertical Coil Springs	40 kph (24 kph during trials)	16.8	One 3pdr gun and two .303in Vickers machine guns
A7E3 (1934-1937)	Associated Equipment Company (AEC) Twin 6-cylinder Diesel 7.74 L 126 hp (bus engines)	Wilson hydraulic planetary	Each road wheel received an individual vertical coil spring.	39 kph on roads and 26 kph off-road	18.2	One 3pdr QF gun and two .303in Vickers machine guns

Notes

References

Wikimedia Commons has media related to Medium Tank A7.

Rickard, J (22 February 2012), Medium Tank A7
Archives, Tank (5 January 2019), The First Cruiser

v t e Tanks of the interwar period
Tankettes	AH-IV Carden Loyd L3/33 L3/35 R-1 T-27 T-32 (Š-I-D) Tančík vz. 33 TKS Type 92 Type 94 Type 97 Te-Ke
Light	7TP 38M Toldi I Char D1 Disston Tractor Tank Fiat 3000 H35 L-60 Light tanks Mk I–V Light Tank Mk VI Light Tank Mk VII LT vz. 34 LT vz. 35 LT vz. 38 M1 Combat Car M2 Light Tank Panzer I Panzer II R35 T-18 T-26 T-37 T-38 Type 95 Ha-Go Vickers 6-Ton Vickers-Carden-Loyd light amphibious tank Vickers T-15
Medium	Char D2 T-24 T-28 Type 89 I-Go Type 97 Chi-Ha Vickers Medium Mk I Vickers Medium Mk II
Cavalry, cruiser, fast	AMC 34 AMC 35 AMR 33 AMR 35 BT tank Cruiser Mk I Cruiser Mk II Cruiser Mk III SOMUA S35
Infantry	FCM 36 Hotchkiss H35 Matilda I T-26
Heavy, super-heavy	Char 2C Char B1 T-35
Prototypes, experimentals	10TP FCM F1 Grosstraktor Kolohousenka Landsverk L-120 Leichttraktor Medium Mark III Medium Mark D Medium Tank A7 Morris-Martel Neubaufahrzeug PZInż 130 Škoda MU-4 SMK Straussler V-4 Stridsvagn m/31 ST vz. 39 T1 Light Tank T2 Medium T7 Combat Car T-19 T-42 T-100 Type 87 Chi-I Type 91 heavy Type 95 heavy Type 97 Chi-Ni Type 98 Chi-Ho Verdeja Vickers A1E1 Independent
Interwar period tanks List of interwar armoured fighting vehicles Background: History of the tank, Tank classification, interwar period

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References