Project 633

NATO: Romeo

Type SS
Soviet designation PL
NATO reporting name Romeo
Country USSR
Displacement (t) 1,730
Length (m) 76.6
Beam (m) 6.7
Draft (m) 4.6
Height (m) 15.0
Max speed submerged (kn) 13.0
Max speed surfaced (kn) 15.2
Max safe depth (m) 250
Endurance (days) 30
Diesel-electric Yes
Titanium hull No
Class year 1957

Sensors

Sonar (5)

Name Type Platform Passive range (km) Active range (km)
Beresta ssp — —
MG-10 Kola H sub 0.9 —
MG-13 air — —
MG-200 Arktika H sub — 1.3
NEL-5 echo sub — —

Radar (3)

Name NATO name Air search Surface search Fire control
ARP-53 — — —
Flag Snoop Plate — Yes —
MRP-10 Nakat — — —

Individual hulls (20)

Name Short name Country Commissioned Decommissioned Remark
S-101 S-101 USSR 1960-12-21 1986-02-14
S-11 S-11 USSR 1961-09-30 1991-06-24
S-128 S-128 USSR 1960-12-29 1990-04-19
S-212 S-212 USSR 1960-12-21 1972-12-05
S-28 S-28 USSR 1961-12-23 1982-03-17
S-32 S-32 USSR 1959-12-31 1966-10-05
S-34 S-34 USSR 1959-12-31 1966-10-05
S-350 S-350 USSR 1959-08-31 1982-03-09
S-351 S-351 USSR 1959-11-06 1967-10-17
S-352 S-352 USSR 1959-10-31 1967-01-26
S-353 S-353 USSR 1959-12-26 1966-07-19
S-354 S-354 USSR 1959-11-30 1966-10-17
S-36 S-36 USSR 1960-09-30 1985-12-28
S-37 S-37 USSR 1960-03-31 1992-03-19
S-38 S-38 USSR 1960-09-23 1983-01-20
S-4 S-4 USSR 1961-09-18 1987-02-05
S-49 S-49 USSR 1961-12-31 1990-04-19
S-53 S-53 USSR 1960-12-31 1985-12-17
S-57 S-57 USSR 1961-12-27 1972-05-25
S-7 S-7 USSR 1961-09-17 1990-04-19