History

In 1946 the US Navy released acquirements for a helicopter to be used aboard cruisers and battleships. Both Piaseckie and Sikorsky received a contract for the development of two prototypes based upon these requirements.

Sikorsky developed the Sikorsky S.53, or XHJS-1, which was based upon the HO3S-1, the naval version of the S-51.

The S.53 was equipped with the more powerful Continental R-975-34 rated 525 hp and was capable to carry five passengers. The type made its maiden-flight in September 1947.

After evaluation and comparison with the Piaseckie XHJP-1, this last type was chosen. One of the main reasons was the necessity to change the ballast of the Sikorsky  when the load was changed.

Sikorsky developed a modified version, but this model was not selected.

In 1949 the Helicopter Divisional Office of the USAAF requested proposals for a new helicopter.

Sikorsky built a mock-up, which was based upon the successor of the XHJS-1.

This proposal was accepted and the USAF ordered to built five YH-19 pre-production examples, registered 49-201 till49-2916. Th first made its first flight on November 10, 1949. These machines differed from the later production-versions lacking the triangular fin between the tail and the fuselage. Also these machines had a horizontal stabilizer.

An order for 51 H-19A followed in 1951, soon succeeded by an order for the H-19B, which was equipped with a more powerful engine and an enlarged main rotor with a diameter of 16,16 m.

The engine was mounted in the nose of the fuselage and the cabin was positioned in the centre of gravity. Because of this construction the load hardly influenced the stability of the helicopter. Much attention was paid to the maintenance of the machine, an engine change, for example, could be done in two hours.

In March 1952 the S-55 received it civil certifications and was the first commercial helicopter available in Europe.

Over 1000 examples of the military version were built plus an additional 550 examples license built by Westland as Westland Whirlwind. Also Sud-Est in France built several example.

Versions.

YH-19:
pre-production version, five examples built.
H-19A:
the USAF-version of the YH-19 with a Pratt & Whitney R-1340-57 engine rated 600 hp and a rotor diameter of 16.15 m. Fifty examples built. From 1962 designated as UH-19A.
  • SH-19A: Modified H-19A for rescue duties; From 1962 designated as HH-19A.
  • H-19C: US Army version of the H-19A; From 1962 and on designated as UH-19C. 72 examples built.
H-19B:
As H-19A, but with more powerful R-1300-3 engine rated 700 hp and a rotor diameter of  16,16 m. 264 examples built . From 1962 and on designated as UH-19B.
  • SH-19B: Modified H-19B for rescue duties; From 1962 and on designated as HH-19B.
  • H-19D: US Army version of the H-19B; From 1962 and on designated as UH-19D. 301 examples built.
HO4S-1:
US Navy version of the H-19A, ten examples built.
HO4S-2:
never built rescue version for the US Coast Guard.
HO4S-3:
Version with new Wright R-1300 engine rated 700 hp, built for US Navy and Canada. From 1962 and on designated as UH-19F. 79 examples built.
  • HO4S-3G: Version of the HO4S-3 for US Coast Guard, 30 examples built. From 1962 and on designated as HH-19G.
  • HRS-1: Version of the HO4S for US Marine Corps for transport of eight marines. 60 examples built.
  • HRS-2: HRS-1 with modified equipment: 101 examples built.
  • HRS-3: HRS-2 with Wright ER-1300-3 engine rated 700 hp. From 1962 and on designated as CH-19E. 105 examples built plus several uprated HRS-2s.
  • HRS-4: never built version of HRS-3 with a Wright R-1820 rated 1025 hp.
S-55:
Civil version with Pratt & Whitney R-1340 rated 600 hp and a straight tail.
S-55A:
Commercial version with Wright R-1300-3 engine rated  800 hp and inclined tail .
S-55C:
Version of the S-55A with a Wright R-1340 engine rated 600 hp and inclined tail.
S-55T:
version converted by Aviation Specialties S-55 with modified equipment and a Garrette Airesearch TPE-331-3U-303 turbojet rated 650 hp.
S-55QT:
Very quiet version for flight across the Grand Canyon.
Whirlwind HAR21:
Westland built version of the HRS-2; ten examples built for the Royal Navy.
Whirlwind HAS22:
Fifteen examples Westland built version of the HO4S-3.

 

Technical information
Dimensions:
Length with rotor 12,85 m Rotor diameter: 16,15 m
Height: 4,06 m Tail Rotor diameter: - m
Weights:
Empty weight: 2079 kg Full weight: 3578 kg
Performances:
Max. speed: 190 km/u Climbing speed: 213 m/min
Cruising speed: 155 km/u    
Range: 595 km Service ceiling: 3200 m
Miscellaneous
Engine type: One Wright R-1300-3 rated 700 hp
Crew:  

 


All three examples were delivered under MDAP conditions.

Information about Dutch aircraft.

Sikorsky HO4S-3 (UH- 19F) Air Sea Rescue helikopter, reg.nr. H-3 (1953-1962)
Sikorsky HO4S-3 (UH- 19F) Air Sea Rescue helicopter, serial H-3.
[Ingesloten foto van BeeldBank NIMH. Klik op de foto voor bestel-informatie]
The aircraft is shown in the first, dark blue paint scheme and hasn't received it's name yet. Also it lacks the later extensions under the fuselage.
De Sikorsky HO4S-3 (UH-19F)  Air Sea Rescue (ASR) helikopter H 2
De Sikorsky HO4S-3 (UH-19F) Air Sea Rescue (ASR) helikopter H 2 "Salomé".
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky HO4S-3 (UH- 19F) Air Sea Rescue helikopter, reg.nr. H-3 (1953-1962), bijgenaamd Cleopatra
Sikorsky HO4S-3 (UH- 19F) Air Sea Rescue helicopter, serial H-3, 'Cleopatra'.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky HO4S-3 (UH- 19F)  Air Sea Rescue helikopter, reg.nr. H-3 (1953-1962) wordt in Vlissingen, tijdens een Nato-oefening in 1953 bewaakt door MP's
Sikorsky HO4S-3 (UH- 19F) Air Sea Rescue helicopter, serial H-3 near Vlissingen.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
De Sikorsky HO4S-3 (UH-19F)  Air Sea Rescue (ASR) helikopter H 2
Sikorsky HO4S-3 (UH-19F) Air Sea Rescue (ASR) helicopter H 2 "Salomé".
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
De halfgeopende neusbeplating met daarachter de 700 pk sterke Wright R-1300 stermotor van de Air Sea Rescue (ASR) Sikorsky HO4S-3 (UH-19F) helikopter H-3 (ex-USN 133778, 1953-1962).
Nose section of the  Sikorsky HO4S-3 (UH-19F) helicopter H-3 (ex-USN 133778).
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
De inbouw van een 700 pk sterke luchtgekoelde stermotor in de Air Sea Rescue (ASR) Sikorsky HO4S-3 (UH-19F) helikopter H-3 (ex-USN 133778, 1953-1962).
The 700 hp engine of the Sikorsky HO4S-3 H-3 .
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky H04S-3 (UH 19F)  Air Sea Rescue 078 Delila (1953-1963) (Sikorsky/USA) Detailfoto
Nose section of Sikorsky H04S-3  078 Delila.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Het vliegkampschip Hr.Ms. Karel Doorman (1948-1968) tijdens de wereldreis van Smaldeel 5 van 31 mei tot 20 december 1960. Het schip op weg naar Sorong. Zicht op het eiland Doom. Aan dek een Air-Sea-Rescue helicopter
Hr.Ms. Karel Doorman (1948-1968) December 1960 with a Air-Sea-Rescue helicopter Ho4S-3 aboard.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky H04S-3 (UH 19F)  Air Sea Rescue 078 Delila (1953-1963) (Sikorsky/USA) Detailfoto
Detail of the tail of Sikorsky H04S-3 H-8 Delila.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky H04S-3 (UH 19F)  Air Sea Rescue 078 Delila (1953-1963) (Sikorsky/USA) Detailfoto
Cockpit of Sikorsky H04S-3 H-8 Delila.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky HO4S-3 (UH- 19F)  H-3 (1953-1962) Air Sea Rescue helikopter met nieuwe registratienummer 077.
Sikorsky HO4S-3 (UH- 19F) with new  serial 077.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky HO4S-3 (UH- 19F)  H-3 (1953-1962), bijgenaamd Cleopatra,  Air Sea Rescue helikopter.
Sikorsky HO4S-3 (077), 'Cleopatra'.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
De Sikorsky HO4S-3 (UH-19F)  Air Sea Rescue (ASR) helikopter H 2
Sikorsky HO4S-3 H-2 "Salomé" aboard Hr.Ms. Karel doorman.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
De Sikorsky HO4S-3 (UH-19F)  Air Sea Rescue (ASR) helikopter H 2
De Sikorsky HO4S-3 076 "Salomé" at Biak .
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky H04S-3 (UH 19F)  Air Sea Rescue 078 Delila (1953-1963) (Sikorsky/USA) a/b Hr.Ms. Karel Doorman
Sikorsky H04S-3 H-4 Delila aboard Hr.Ms. Karel Doorman.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky H04S-3 (UH 19F)  Air Sea Rescue 078 Delila (1953-1963) (Sikorsky/USA) Inbouw van de motor
Sikorsky H04S-3 engine compartment.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sikorsky H04S-3 (UH 19F)  Air Sea Rescue 078 Delila (1953-1963) (Sikorsky/USA) Interieur
Sikorsky H04S-3; Interior.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]

 


Serial 2nd Serial Us. Fisc. year nr. Constr.nr. Date in service Date out of service Notes
H-2 076 133777 55.0471 09-09-1953 11-12-1963 Nick name: Salomé. Discharged; First being used for training purposes at MLTS, as a gift of the USA to Aviodome.
H-3 077 133778 55.0472 09-09-1953 27-02-1962 Nick name: Cleopatra. Accident Noordwijk
H-4   133779 550473 09-09-1953 07-07-1959 Nick name: Delilah. Accident Marsdiep

 


1/72nd Scale

Kits

  • Italeri
    • Kit 1267: Sikorsky HO4S-3 (S55)
    • Kit 1215: UH19A Rescue Chicasaw (this is the type used by the Dutch Navy)
    • Kit 1206: Sikorsky H19B "Chickasaw" [Note that this type can't be used for Dutch version becuase of the tail]
  • Revell
    • Set 04460: Sikorsky H-19A Chickasaw (same as Italeri kit 1206)

All kits mentioned above have de smaller (early) hoist. At sikorskyarchives you can find some nice photos of this type of hoist.

For the later applied version you have to built one by yourself or buy a Whitlybits conversion kit.

A model of a Sikorsky HO4S-3 in th delivery scheme.
The kit used is the Italeri/Revell kit; decals, except the roundels, are home made.

Sikorsky-HO4S-3-IMG 2525

 

Sikorsky-HO4S-3-IMG 2523

A model of a Sikorsky HO4S-3 in the last grey over sky colour scheme.
The kit used is the Revell kit, decals from the kit.

Sikorsky-HO4S-3-IMG 2521

 

Sikorsky HO4S3 AKleijn
A model of a Sikorsky HO4S-3, kit used is the Italeri/Revell kit, built by Adri Kleijn.

 

Sikorsky HO4S AKleijn
A model of a Sikorsky HO4S-3, kit used is the Italeri/Revell kit, built by Adri Kleijn.

 

Building a model of a Sikorsky HO4-S3, by Peter Banis.

Sikorsky HO4S 3 PBanis 5 Sikorsky HO4S 3 PBanis 4 Sikorsky HO4S 3 PBanis 3 Sikorsky HO4S 3 PBanis 6 Sikorsky HO4S 3 PBanis 8 Sikorsky HO4S 3 PBanis 7 Sikorsky HO4S 3 PBanis 2 Sikorsky HO4S 3 PBanis 1

 

Modelling add-on

  • Whirlybits
    • Set WBA72015: RAF/RN Style Winch voor Westland Whirlwind (Revell/Italeri)
    • Set WBA72011: Winch voor H19 (Revell/Italeri)
    • Set WBA72012: White Metal front legs for H19 (Revell/Italeri)
    • Set WBA72005: Blanking plate for underside of Italeri/Revell H19 (Revell/Italeri)
    • Set WBA72067: Sikorsky S55C (Royal Danish AF)
  • Eduard
    • Set E72-363: Detailset S55/H19 (Revell)

Decals

  • Dutch Decal
    • Set 72034: Decalset voor verschillende toestellen waaronder Sikorsky S.58

1/48th Scale

Kits

  • Revell
    • Kit 4410: Sikorsky S-55 Sabena
    • Kit 4433: H-19 USAF Sikorsky Rescue Helicopter

Modelling add-on

  • --
    • Set --: --

Decals

  • --
    • Set --: --

 


 .

Scheme Colour name FS number BS number Humbrol XtraColor Vallejo ModelColor Vallejo ModelAir Hataka
Standard #1 Overall Dark Blue ~5042   181 X121 70.898   -
 
Standard #2 Upper sides Extra Dark Sea Grey ~6099 BS:640 123 / 106 X-5 / X-376 70.866 71.110 ~140
Underside Sky - BS:210 90 X004 / X130 - 71.302 ~026

Check www.paint4models.com for an extensive conversion table with lots of colour and paint systems.

Sikorsky HO4S-3 1-SMALL
The delivery scheme of the Sikorsky HO4S-3: Overall dark sea blue, with white markings.
Initially there was no name applied on the nose of the aircraft.
Further, the "bulges" (doppler radar ?/) under the hull hadn't been applied yet and also the early light hoist was applied above the sliding door.
Who knows more about these bulges??
Sikorsky HO4S-3 2-SMALL
The second scheme of the Sikorsky HO4S-3: Sky with dark grey upper sides and black serials.
Also the name was applied in black. Note the positioning of the name might differ. Still with the early hoist.
Sikorsky HO4S-3 3-SMALL
The first paint scheme but the new serials and name in white. Still the early hoist was applied.
Sikorsky HO4S-3 4-SMALL
The last paint scheme of the Sikorsky HO4S-3: sky with dark grey upper surfaces; black serials an name.
Note the new hoist, capable of hoist larger loads.

 


Literature.

Zestig jaar Marineluchtvaartdienst in Beeld. Hugo Hooftman pag. 112 1977 Uitgever Europese Bibliotheek, Zaltbommel
Dutch Military Aviation 1945-1978 Paul A. Jackson Pag. 109; 116 1978 Uitgever Midland Countries Publications, Leicester
Nederlandse Marinevliegtuigen Thijs Postma & Nico Geldhof Pag. 59   Uitgever Omniboek, 's Gravenhage
Modelbouw in Plastic jaargang 12, nummer 4; De S-55 van de MLD. Fred Bachofner Pag. 124 - 128 1983 Uitgever I.P.M.S. Nederland, Nederland
Vliegen voor de Vloot: 70 jaar Marineluchtvaartdienst harm J. Hazewinkel Pag. 42 1987 Uitgever Rebo Produkties, Sassenheim
85 JAAR Marineluchtvaartdienst in beeld: Van Farman tot NH 90 Helikopter Peter Korbee Pag. 108 - 109 2002 Uitgever Korbee MLD Promotie, Valkenburg

 

Websites.

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