Conceived as an assault breakthrough tank, this design was completed by June 10th, 1943. No complete prototypes were built. However, some parts and components of the AT7 were used in the A39 Tortoise.
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QF 6-pdr AT Gun Mk. V (damage per shot: 75):
OQF 20-pdr AT Gun Type A Barrel (damage per shot: 230):
OQF 17-pdr AT Gun Mk. VII (damage per shot: 150):
OQF 77 mm AT Gun Mk. II (damage per shot: 140):
QF 6-pdr AT Gun Mk. V (damage per shot: 75):
OQF 20-pdr AT Gun Type A Barrel (damage per shot: 230):
OQF 17-pdr AT Gun Mk. VII (damage per shot: 150):
OQF 77 mm AT Gun Mk. II (damage per shot: 140):
Expected
frags:
1.03
Expected
spot
0.65
Expected
defense points
1.29
Expected
winrate
55.30%
Tier VII field modification
available for tier IX-X tanks
Tier VIII field modification
available for tier X tanks
-3% to dispersion during hull traverse
+30% to suspension durability
+15% to maintaining speed when crossing all terrain types
-5% to hull traverse
-3% to aiming circle size
-5% to aiming speed
+2% to view range
-6% to concealment after firing