Soviet Heavy Tank Characteristics

The following table compares the prospective post-war heavy tanks of the USSR (the T-34 is included for completeness' sake, but they seem to have merged the T-34 and T-34-85 into one tank). The table was approved fairly quickly after the war, since the IS-3 and IS-7 already have its index, but the IS-7 still has characteristics of the Object 257 rather than a later model, and the IS-4 is still referred to as Object 701.

	Combat weight	Avg. speed (kph)		Max speed	Hp/ton	Armament		Gun ROF	Fuel (L)**
		Highway	Off-road			Gun	MG
T-34	30.9	30	20	50	16.3	76 mm 680 m/s	2 7.62	5-7	540
KV	42.5	16	13	35	12.6	76 mm 680 m/s	2 7.62	5-7	600-615
IS-2	~46	21	16	32-35	11.3	122 mm 785 m/s	2 7.62	1-2	530
IS-3	~46.5-47	21	16	32-25	11.2	122 mm 785 m/s	2 7.62 1 12.7	1-2	~460
IS-6	51-51.5	23	18-20	40-43	13.6	122 mm 785 m/s	2 7.62 1 12.7	1-2	640
Obj 701	55	23	20	42	13.4	122 mm 790 m/s	2 7.62 1 12.7	1-2	450
IS-7	54-56 (electric)	37-40	30-33	50	18.2	122 mm 1000 m/s	1 12.7 3 PPSh 1 14.5	8-10*	590

* With automatic loading mechanism.