OVERVIEW: The ROMEO class SS (Project 633) is a 2-shaft, diesel powered attack submarine.

DETAILS:   The ROMEO class was a further development of the ZULU and WHISKEY-class. The Romeo class was designed to conduct anti-surface ship operations using torpedoes and to execute mine-laying assignments off hostile ports. It has virtually no anti-submarine capability, due to high noise levels and inadequate sensor fit. 


Specifications:
       Displacement: 1,400 tons surfaced; 1,700 tons submerged.
       Speed: approximately 15 knots surfaced, 13 knots submerged
       Machinery: 2 4000 bhp diesels
       Endurance: 45 days; 9,000 nm surfaced @ 9 knts
       Operational Depth: 270-300 m
       Maximum Depth:     300m	(crush depth)			 
       Complement: 54 
            

NOTES: IOC: 1966. Six hulls transferred from USSR 1966, one hull in 1969.  Refitted with European equipment in 1981. Hull numbers 831, 834, 837, 840, 843 and 846. All USSR units discarded in 1989.  Two units built by PRC and launched in 1980 were delivered in March 1983.  Two additional units delivered in 1984. PRC manufactured hull numbers: 849, 852, 855, 858.
 
 
SOURCES:  Moore, John Evelyn. Jane's Fighting Ships 1987-88.  London: Jane's Pub, 1987, pg. 494; "Romeo Class." Forecast International - Home. Last modified November 1997. https://www.forecastinternational.com/archive/disp_old_pdf.cfm?ARC_ID=1791; Prezelin, Bernard (ed) Naval Institute Guide to Combat Fleets of the World, 1990-91,  Annapolis, MD: Naval Institute Press, 1990, pg. 120; "пр.633 ROMEO." MilitaryRussia.Ru Accessed January 5, 2020. http://militaryrussia.ru/blog/topic-207.html.



