Greetings commanders,
This week, we are looking at two Soviet amphibious light tanks moving through our vehicle pipeline: the PT-76 (1951) and its modernized successor, the PT-76B. Both share the same boat-shaped hull, twin waterjet drive, and a 76.2 mm rifled main gun, but a decade of incremental upgrades pulls the two apart in meaningful ways: the B carries a stabilized gun, a taller fighting compartment, and CBRN protection that the original never had.
As with our previous dev logs, you will find a concise historical summary for each vehicle, some helpful context while you wait to get them in your garage, and a look at our Art Team’s latest work.
PT-76 (1951)
In 1949 the USSR opened design work on a new amphibious light tank under VNII-100 in Leningrad. The project, designated Object 740, called for a 15 t hull with water-jet propulsion and a 76.2 mm gun. A prototype was built in 1950 at the Stalingrad Tractor Plant, and after a successful run of trials – including a crossing of the Kerch Strait – the design was accepted for service on 6 August 1951 as the PT-76. Early production tanks mounted the D-56T rifled gun, a derivative of the WWII F-34/ZIS-3 family, paired with a 7.62 mm SGMT coaxial machine gun, and were powered by a 240 hp V-6 diesel descended from the T-34’s V-2 engine block.
The boat-shaped hull, hollow stamped-steel road wheels, and bow-mounted trim vane gave the PT-76 a low draft and excellent buoyancy. Twin waterjets at the stern delivered roughly 10 km/h in the water, with steering handled by closing or reversing one of the two jets. Total production from 1952 to 1967 ran to roughly 12,000 vehicles across all variants. Drag the model below to inspect the hull, turret, and the distinctive aft jet outlets.
Striker
In Steel Aces, the PT-76 is balanced around its BK-354 series HEAT-FS ammunition: a fin-stabilised shaped-charge round that gives the 76 mm gun unconventionally reliable penetration for a vehicle of this tier. Outside of that, there is very little – paper armour, modest mobility on land, and a boat-shaped silhouette that gives you away long before a heavier tank would. Treat it as a gun truck: pick the angle, deliver the shot, and reposition. The water-jet drive opens flanks that heavier vehicles cannot follow you across, but you should not be brawling for them.
PT-76B
The PT-76B was a major modernization that arrived in stages. The 1957 baseline introduced the D-56TM gun with a shorter, German-style multi-baffle muzzle brake and a hydraulic elevation piston, while raising the hull and turret by 60 mm to make room for a CBRN overpressure system. In 1961 a second phase added the D-56TS gun with a two-plane stabilizer – the STP-2P “Zarya” – giving the crew the ability to lay accurate fire while on the move, a rare capability for a light tank of this era.
Further refinements followed: TVN-2B infrared night vision for the driver, an upgraded R-113 Granat radio, a two-stage air filter, and additional external fuel tanks that pushed range to roughly 400 km. From 1962 onward the lower glacis was rebuilt at a sharper 55° angle. About 4,172 PT-76Bs were produced in the Soviet Union, with another 941 license-built in China. Spin the model below for a closer look at the raised turret and the redesigned bow.
Striker
The PT-76B carries the same BK-354 payload, but the two-plane STP-2P stabiliser lets you put rounds on target while the chassis is still moving – a genuine force multiplier on a hull this light. The trade is unchanged: paper armour, modest mobility, a silhouette that broadcasts your position. The gun-truck doctrine stays the same – drive, spot, deliver one decisive shot, and reposition before the return fire arrives. CBRN gear and the driver’s IR optic round out the kit but will not save you in a fight.
The Steel Aces Team