hydrofoil missile corvette had a very advanced design. Unlike previous Soviet
hydrofoil boats the Project 1240 had fully submerged foils with propellers mounted
on the after set of foils. The corvette achieved a speed of 61 knots and had a
The ship's hull was made of AMG-62T-1 aluminum-magnesium
alloy panels, and the underwater wings were made of 48OT3V titanium alloy. The
bow foil is a split V surface-piercing type (seen in the illustration) which carries
about 60% of the lift and the single fully submerged foil aft carries the remaining
40%. The rear foil is supported by two vertical struts, each of which carries
a propeller on each end of the propulsion pod at the lower end of the strut. At
low speed the bow wing, rear struts with propellers got out of the water. The
movement in this mode was carried out by two pump-jets, powered by two diesel
At 430 tons, MRK-5 was the largest operational naval hydrofoil
at the time.
During its life, the MRK-5 conducted two missile firing with
the main Malakhit missile system, demonstrating excellent seaworthiness on testing.
He also had a very high speed. However, the operation of the ship was very difficult.
corvette MRK-5 was built at the Primorsky Shipyard, Leningrad (yard No.41), launched
1973, commissioned 30 December 1977.
19 April 1990, the missile corvette
MRK-5 was excluded from the lists of the fleet and scrapped.
| Displacement (tons):|
(with wings – 56,6)|
(with wings – 23,5)|
(with wings – 8)|
|Range:||1500 nmi (8,5 knots),
1250 nmi (36 knots), 640 nmi (45 knots)|
hp M-10 gas turbines, 2x1000 hp DRA-211 diesels, 2x2 fixed pitch propellers, 2
pump-jets, 3x100 kW GTG-100 turbine-type generators, 2x100 kW diesel generators
KT-120-1240 P-120 Malakhit anti-ship missiles launchers (4K85 missiles)|
ZIF-122 4K33 Osa-M SAM system launcher (20 9M33 missiles) – 4R-33 fire control
1x6 30 mm AK-630M (2000 rounds) – MR-123 Vympel fire control system
radar, Lotciya navigation radar, Nikhrom-RRM and Nickel-KM IFF, ARP-58SV radio