BT-5 

Type: Light tank

Nationality: USSR

That is the series of BT with the highest production numbers. It received the 4.5 cm gun which the BT-2 missed. The tank saw first action in Spain in 1938 on the Republican side and was engaged later against the Japanese in Manchouria. Its penetration abilities were highly valued in both cases.
As all the BT tanks, the BT-5 could circulate either on tracks or on wheels. In fact, the tank could only be used on tracks in the combat areas, because it had no off road abilities on wheels and the change required too much time. The announced top speed was thus purely theoritical. Even the top speed on tracks submitted the crew to such discomfort, that it could scarcely be maintained.
Identification: There are two sub-variants of this tank: one with the turret of the BT-2, without overhang. The standard version got a turret close to the one of the BT-7, with a overhang and straight sides.
The full road-wheels make the distinction with the BT-2 easy while the bolted hull differs from the BT-7.
Built by N/A
Other designation(s): BT M1934
Based on: BT

BT-5 with a turret overhang