SIKORSKY H-5 DRAGONFLY

H-5 SERVICE

Manufacturer: Vought-Sikorsky Aircraft Division, United Aircraft Corp., Stratford, Connecticut, USA
(In 1943, became Sikorsky Aircraft Division, United Aircraft Corp., Bridgeport,
Connecticut, USA)
Models: VS-327, S-51
Designations: R-5; H-5; HO2S, HO3S
Name: Dragonfly
First official flight: (XR-5) 18/08/1943
(Model S-51) 16/02/1946
Factory production period: 1943 - 1953
Primary service period: 1945 - 1950's
Last official flight: ?

H-5 VARIANTS

1943 Model VS-327 XR-5 5  
1943 Model VS-327 YR-5A 26  
1943 Model VS-327 R-5A 34 Total: 065
         
1947 Model S-51 R-5F 11  
1948 Model S-51 H-5G 39  
1949 Model S-51 H-5H 16 Total: 066
         
? Model S-51 HO3S-1 92  
? Model S-51 HO3S-1G 9 Total: 101
         
1946 Model S-51 Model S-51 53 Total: 053

Grand Total: 285

1948 Foreign built - England:
Model WS-51
Dragonfly Series 139 Grand Total: 139

H-5 PRODUCTION

Military Helicopters

XR-5
Prototype, single-engined, 3-bladed rotor,
tandem 2-seater, tail wheel, general
purpose helicopter for USAAF.
Produced

Sikorsky Bridgeport, Connecticut (SI)

43-28236 / 43-28239 ?    
43-47954 ? 5 Total: 005

YR-5A
As XR-5, service test version, minor changes.
Redesignated as YH-5A in 1948.
Produced

Sikorsky Bridgeport, Connecticut (SI)

43-46600 / 43-46625 ? 26 Total: 026

R-5A
As YR-5A, production version
equipped for rescue duties.
Redesignated as H-5A in 1948.
Produced

Sikorsky Bridgeport, Connecticut (SI)

43-46626 / 43-46659 ? 34 Total: 034
66 additional airframes cancelled.

R-5B - Proposed R-5A modification, cancelled.
YR-5C - cancelled project.

R-5F
As R-5D, 4-seater cabin, minor changes.
Redesignated as H-5F in 1948.
Produced

Sikorsky Bridgeport, Connecticut (SI)

47-480 / 47-490 ? 11 Total: 011

H-5G
As R-5F, minor changes.
Produced

Sikorsky Bridgeport, Connecticut (SI)

48-524 / 48-562 ? 39 Total: 039

H-5H
As H-5G, wheel / pontoon landing gear.
Produced

Sikorsky Bridgeport, Connecticut (SI)

49-1996 / 49-2011 ? 16 Total: 016

HO3S-1
As H-5F, rescue version for US Navy.
Produced

Sikorsky Bridgeport, Connecticut (S)

BuNo.57995 / 57998 ?    
BuNo.122508 / 122529 ?    
BuNo.122709 / 122728 ?    
BuNo.123118 / 123143 ?    
BuNo.124334 / 124353 ? 92 Total: 092

HO3S-1G
As HO3S-1, USCG version.
Produced

Sikorsky Bridgeport, Connecticut (S)

(USCG) 1230 / 1238 ? 9 Total: 009

HO3S-2 - Reserved for US Navy version of H-5H, cancelled.

Civil Helicopters

Model S-51
Civil version with 4-seater cabin, 
developed from the R-5D.
Produced

Sikorsky Bridgeport, Connecticut

civil reg. ? 53 Total: 053

 

Grand Total: 285

Foreign built - England:
Dragonfly Series
Licence built version for UK. 6 ex-US
machines imported for tests. 2 to RAF
as VW209 and WB220 (c/n: 51-017).
Produced 1947 - 1953

Westland Aircraft Ltd., Yeovil,
Somerset, England

Dragonfly Mk. 1A / 1B
1948, civil version.
Mk. 1A had the British Alvis engine.
Mk. 1B had the US Pratt & Whitney engine.
Later developed into the Westland (S-51A Series 2)
Widgeon (1955, 15 built).

civil reg.
- 4 to RAF as WB810, WF308,
WZ749, XD649.
mixed WA/H/1 to WA/H/139 53  

Dragonfly HR.Mk. 1
Royal Navy Helicopter Rescue version.

(RN) VX595 / VX600 ?    
(RN) VZ961 / VZ966 ? 12  

Dragonfly HC.Mk. 2
RAF Helicopter Cargo version.

(RAF) VZ960 ?    
(RAF) WF311, WF315 WA/H/16, WA/H/17 3  

Dragonfly HR.Mk. 3
Royal Navy Helicopter Rescue version.

(RN) WG661 / WG672 WA/H/31 / WA/H/42    
(RN) WG705 / WG709 WA/H/43 / WA/H/47    
(RN) WG714 WA/H/48    
(RN) WG718 / WG726
- WG725 to RAF.
WA/H/49 / WA/H/57    
(RN) WG748 / WG754 WA/H/58 / WA/H/64    
(RN) WH989 / WH992 WA/H/65 / WA/H/68    
(RN) WN492 / WN500 WA/H/69 / WA/H/77    
(RN) WP493 / WP504 WA/H/78 / WA/H/89 59  
18 additional airframes cancelled.

Dragonfly HC.Mk. 4
RAF Helicopter Cargo version.

(RAF) WT845, WT846 WA/H/108, WA/H/109    
(RAF) WX953 WA/H/110    
(RAF) XF259 / XF261 WA/H/105 / WA/H/107 6  

Dragonfly HR.Mk. 4
RAF Helicopter Rescue version.

(RAF) XB251 / XB256 WA/H/124 / WA/H/129 6 Grand Total: 139

H-5 CONVERSIONS

USAAF / USAF

XR-5A 2 XR-5, fitted with different equipment to RAF specs.
R-5D 21 1 YR-5A / 20 R-5A, 1944, engine upgrade, nose wheel, rescue hoist,
external fuel tank. Original designation was YR-5D.
(H-5D) 21 1948, redesignation of the R-5D.
YR-5E 5 YR-5A, 1947, conversions with dual controls.
(YH-5E) 5 1948, redesignation of the YR-5E.

US Navy

HO2S-1 2 YR-5A, 1945, transfers to the USN for evaluation, later to USCG.
Assigned BuNo. 75689 (43-46613), 75690 (43-46618).
Production for 42 cancelled.
XHO3S-3 1 HO3S-1, 1950, prototype with redesigned rotor.

Foreign Conversion

Dragonfly HR.Mk. 5

1+

HR.Mk. 1 / 3, Royal Navy conversions, updated equipment.

FOREIGN MILITARY / CIVILIAN SERVICE
 - H-5 helicopters in both military and civil service with Belgium, Brazil, Ceylon,
   Canada, Ceylon, Egypt, France, Iraq, Italy, Japan, The Philippines, Thailand,
   United Kingdom and Yugoslavia.
 - The S-51 was the world's first helicopter to enter commercial service.

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