Sikorsky HRS-3

Improved HRS-2 with a 700HP Wright R-1300-3 Cyclone engine. Redesignated CH-19E in 1962. 91 built and conversions from HRS-2.

Airframes (159)

C/N	Model	Built	Reg
55-231	hrs-2	1952	130161
55-232	hrs-2	1952	130162
55-233	hrs-2	1952	130163
55-234	hrs-2	1952	130164
55-235	hrs-2	1952	130165
55-236	hrs-2	1952	130166
55-238	hrs-2	1952	130168	w/o 2000
55-253	hrs-2	1952	130170
55-256	hrs-2	1952	130173
55-264	hrs-2	1952	130181	w/o 1963
55-291	hrs-2	1952	130193
55-307	hrs-2	1952	130194
55-308	hrs-2	1952	130195
55-309	hrs-2	1952	130196
55-312	hrs-2	1952	130199
55-313	hrs-2	1952	130200
55-314	hrs-2	1952	130201
55-316	hrs-2	1952	130203
55-317	hrs-2	1952	130204
55-318	hrs-2	1952	130205	w/o 1958
55-334	hrs-3	1953	130206	w/o 1954
55-335	hrs-3	1953	130207
55-336	hrs-3	1953	130208
55-337	hrs-3	1953	130209
55-338	hrs-3	1953	130210
55-339	hrs-3	1953	130211	w/o 1953
55-340	hrs-3	1953	130212
55-341	hrs-3	1953	130213
55-342	hrs-3	1953	130214
55-343	hrs-3	1953	130215

Operators

1951-1967	US Air Force S-55 H-19
1951-1957	US Navy S-55 H-19
1951-1966	US Coast Guard S-55 H-19
1951-1960	US Marine Corps S-55 H-19
1953-??	Armée de l'Air S-55 H-19
1955-1976	Arma Aérea de la Armada Española S-55 H-19
1961-1974	Không lực Việt Nam Cộng hòa