Weapons Designer Leonid Ermash

Obverse

in the centre there is a relief image of the National Coat of Arms of the Russian Federation and over it a semicircular inscription along the rim: "РОССИЙСКАЯ ФЕДЕРАЦИЯ" (RUSSIAN FEDERATION) framed by doubled rhombuses on both sides, under the emblem, in three lines, there is an inscription: "БАНК РОССИИ" (BANK OF RUSSIA), the coin’s par value "25 РУБЛЕЙ" (25 RUBLES), and the year of issue "2020 г." (2020), and on the right there is a mint trade mark.

Reverse

a relief image of the D-3 torpedo boat and the inscription ‘Д-3’ (D-3) on the left; along the rim there are the inscriptions ‘ОРУЖИЕ ВЕЛИКОЙ ПОБЕДЫ’ (WEAPONS OF THE GREAT VICTORY) at the top and ‘Л.Л. ЕРМАШ’ (LEONID ERMASH) at the bottom.

Authors

Designers: E.V. Kramskaya (obverse), O.G. Shepel (reverse).
Sculptors: A.A. Dolgopolova (obverse), A.N. Bessonov (reverse).
Mint: Moscow Mint (ММД).
Edge: 180 corrugations.

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Leonid Lvovich Ermash (1906–?) was a Soviet ship designer. He oversaw the development of the D-3 long-range torpedo boat, accepted for service in 1940.

The D-3 torpedo boat marked the beginning of a new stage in Soviet shipbuilding. Compared to its predecessors–close-range torpedo boats–the D-3 boasted higher navigability, which allowed it to operate farther from the shore.

Owing to its improved wooden frame, the boat had quite high durability and was able to survive hundreds of penetration holes. The navigation equipment as well as the boat's deck were improved. The latter had enough space for a platoon of marines. The boats of the second series carried more powerful American-made motors, making them faster and more manoeuvrable.

D-3 torpedo boats were widely used during the Great Patriotic War to deploy marine troops in enemy territory, to support large ships and to lay minefields.