A steel vessel with the following characteristics:

Tonnage 1400 Τ, Length 63 m, Width 11.6 m, Draft 4 m

Speed 11/13 knots, radius of action 6000 nautical miles

Crew: 6 Officers, 9 Junior Officers, and 24 Five-Year Service Reserve Officers

Built in 1976

A steel vessel with the following characteristics:
Tonnage 750 Τ, Length 50 m, Width 9.6 m, Draft 3 m
Speed 10/13 knots, Radius of action 3500 nautical miles
Crew: 6 Officers, 12 Junior Officers and 18 Five-Year Service Reserve Officers
Built in 1983

A steel vessel with the following characteristics:

Tonnage 250 Τ, Length 33 m, Width 6 m, Draft 2.5 m

Speed 9.5/12.5 knots, Radius of action 2000 nautical miles

Crew: 4 Officers, 14 Junior Officers and 14 Five-Year Service Reserve Officers

Built in 1989

A polyester vessel with the following characteristics:

Tonnage 8 Τ, Length 13.7 m, Width 4.1 m, Draft 1.2 m

Speed 12.5 knots, Radius of action 120 nautical miles

Crew: 3 Officers, 3 Junior Officers and hydrographic crew of 3 or 4 persons

Built in 1987