Footnotes

1. T–35. Source: Russian Military Zone. The T–35 had five turrets. The T–35–1 and T–35–2 models were prototypes; the T–35–2 was fitted with a 76.2mm PS–3 for its main armament. There were difficulties supplying this gun so the 76.2mm KT–28 was fitted to all production models, which were designated T–35A. The armour data for the turrets shows on the first line data for the main turret (“main”), then data for the two turrets with 45mm guns (the first line marked as “sec”), and then data for the two turrets with MG (the second line marked as “sec”). Earlier models had 37mm guns (two of) which were replaced by dual 45mm obr.1932 guns in 1935. At the end of 1938 conical turrets were introduced so the turret sides and rear would have have been slightly sloped (about 15°) rather than 0° as given in the table. The T–35 main turret was the same as the T–28 main turret, for both the straight sided and conical versions. Two prototypes and 61 vehicles were produced, of which 11 were produced in 1938 and 6 in 1939. Therefore depending upon exactly when conical turrets were introduced there would have been between 6 and 17 vehicles fitted with them. [up]

2. KV–1. Source: Russian Military Zone and Robert Livingston. The obr.1941 introduced a cast turret instead of a welded one, and the armour for this comes from British tests on an actual vehicle. There was also an obr.1939 armed with a 76mm L–11 gun but it is not included here because only four were made as protoypes for the KV–1 series. [up]

3. KV–1e. Source: Russian Military Zone and Robert Livingston. In Spring 1941 the decision was made to increase armour protection by fitting extra armour plates to the upper and lower hull front, and the hull and turret sides. These were to be fitted to all versions of the KV–1 (except for the KV–1S) but due to the war situation not all KV–1 vehicles were uparmoured, and those that were had an ad hoc application of extra plates. For example, on the Russian Military Zone there is a photograph of a KV–1 at Stalingrad in autumn 1942 without extra armour. The British tests of an actual KV–1 with a cast turret had extra armour only on the hull front and lower sides, but none on the turret or hull upper sides. It may have been considered unnecessary to add the extra armour to the turret as the cast turret was already thicker than the older welded turret, or perhaps this was a non-standard fitting, or it may have been common to add whatever armour was available at the time. There is no information on the thickness of the extra armour added to the turret sides or to the upper hull sides. [up]

4. KV–1S. Source: Russian Military Zone. The KV–1S was also referred to as the KV–1 obr.1942. [up]

5. KV–2. Source: Jentz, Thomas L: Panzer Truppen Vol 1; Russian Military Zone and Red Steel. The vehicle was called the MT–1 until the beginning of 1941 when it was renamed KV–2. As the hull was based on the KV–1 I have used the Russian Military Zone’s armour scheme for the hull, as it is more complete, and Jentz for the turret. Red Steel gives 110mm as the maximum armour so I have assumed that for the mantle. [up]