The G-5 was a Soviet motor torpedo boat design built before and during World War II.

Unarmed, and with a partial fuel load, it achieved a maximum speed of 63.5 knots (73.1 mph; 117.6 km/h) during its trials in the Black Sea during 1933 and the decision was made to place it into production.

However the minimum speed was 18 knots (21 mph; 33 km/h) which caused a great deal of trouble when trying to moor and when maneuvering in close proximity.

[3] The two torpedoes were carried in troughs set into the rear deck in a manner derived from that used by the British WW I-era coastal motor boats captured by the Soviets during Russian Civil War.

The torpedoes were shoved out the back of the trough by an arbor with a bell-shaped head that was activated by an explosive charge, but the torpedo motor was not activated until a wire trailing from the boat snapped, giving the boat time to turn away from the target.

[7] Many of the Soviet G-5s were used for different roles (landing units, transports, escorts, etc..) and saw a relatively low numbers of torpedo attacks against enemy targets.

In Baltic Sea TK-94 scored the locally significant sinking of Finnish minelayer Riilahti.

During the Crimean Offensive, on the night of 27 April, three G-5s attacked and crippled the German submarine hunter UJ-104 near Sevastopol.

Syöksy sank the Soviet gunboat Krasnoye Znamya, although she was later raised and put back into service.

A number were transferred by the Soviet Union to North Korea after the end of the war.