Displacement is increased to around 88/100 t (surfaced/submerged), and the length is increased to approximately 21 m, beam is increased to 4.42 m, and diameter to 2.7 m. Speed is increased to 8/11 kn (surfaced/submerged), and range is increased to 550 nmi surfaced @ 10 kn when surfaced, and that of submerged remains the same as its predecessor M-100 Una class while the payload and crew also remain unchanged. A sail is added and its battery can be charged while submerged.[16]