She had a dive time of 30 seconds and was capable of operating at a depth of 50 metres (160 ft).

When submerged, she could operate for 52 nautical miles (96 km; 60 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,660 to 10,230 nautical miles (16,040 to 18,950 km; 9,970 to 11,770 mi) at 7 knots (13 km/h; 8.1 mph).

UC-79 was fitted with six 100 centimetres (39 in) mine tubes, eighteen UC 200 mines, three 50 centimetres (20 in) torpedo tubes (one on the stern and two on the bow), seven torpedoes, and one 8.8 cm (3.5 in) Uk L/30 deck gun.

[Note 1] In eleven patrols UC-79 was credited with sinking 10 ships, either by torpedo or by mines laid.

[7] UC-79 was sunk by a mine off Cap Gris Nez, France in late March or early April 1918.