Körös survived six direct hits from a concealed Serbian battery on 4 August 1914 and later served under the name Morava. The monitor took those hits while exposing the camouflaged battery. As built, the 448-ton vessel had a 54-metre hull, a 9-metre beam and a draught of 1.2 metres. Yarrow boilers supplied triple-expansion engines for a speed of 10 knots. Her armament comprised two 4.7-inch guns, two 2.6-inch guns and two machine guns. Belt and bulkhead protection was 50 mm thick, with 19 mm deck armour and 75 mm around the conning tower and gun turrets. These vessels secured supply traffic and carried heavy artillery into areas where wet ground made its movement ashore difficult. Their gunfire could also support an advance before tanks entered service.
Notable Point · 1:05:01-1:09:40
Körös demonstrates the river monitor's artillery role
Körös combined shallow draught, armour and 4.7-inch guns to protect river traffic and provide mobile heavy artillery.