21 July 10943.
Germans had previously made a number of fruitless raids against Primorsko Akhtari (Azov Sea) without great results: the coastal bombing made by MAL gunboats caused little damages.
On that day, the Germans dispatched the gunboats MAL-8 and MAL-11 with the auxiliary minesweeper R-166 to attempt a new bombing.
However the Soviets were ready: at first the small minesweeper n°179 attempted to delay the enemy until expending all her ammunition, successfully taking time, and suffering only minor damages with 1 wounded.
Finally occurred the counter-attack of the Soviet gunboats BK-111, BK-112 and BK-113 (all of 1124 class) , alongside the patrol boats SKA-0412 and SKA-0712.
During the battle, the Soviets suffered only light damages on SKA-0712, while SKA-0412 and BK-112 had guns out of action due heavy use.
Germans suffered greater damages: R-166 suffered at least 2 direct hits from the BK main guns of 76mm, with heavy damages, 2 killed and 1 wounded.
Also MAL-11 was lightly damaged with 2 wounded: moreover, all the MAL had guns out of action due excessive use.
After the damages, the Germans retreat, giving the victory to Soviets.
Soviet armored boat of 1124 project with two T-34 turrets and a flak turret