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Sikorsky H-19 Chickasaw

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Development

Entwicklung

 

The Sikorsky H-19 Chickasaw (company model number S-55) was a multi-purpose helicopter used by the U.S. Army and USAF. It was also license-built by Westland Aircraft as the Westland Whirlwind in the United Kingdom.

Development of the H-19 was initiated privately by Sikorsky without government sponsorship. The helicopter was initially designed as a testbed for several novel design concepts intended to provide greater load-carrying ability in combination with easy maintenance.

The first customer was the USAF, which ordered five YH-19 aircraft for evaluation; the YH-19's first flight was on 10 November 1949. This was followed by delivery of the first YH-19 to the USAF on 16 April 1950 and delivery of the first HO4S-1 helicopter to the U.S. Navy on 31 August 1950.
  Die Sikorsky H-19 Chickasaw (Modellnummer S-55) war ein Mehrzweckhubschrauber, der von der US Army und der USAF verwendet wurde. Es wurde auch von Westland Aircraft als Westland Whirlwind in Großbritannien in Lizenz gefertigt.
Die Entwicklung der H-19 wurde von Sikorsky ohne staatliche Förderung privat initiiert. Der Helikopter wurde ursprünglich als Testmaschine für mehrere neuartige Konstruktionskonzepte entwickelt, die eine größere Tragfähigkeit in Verbindung mit einfacher Wartung ermöglichen sollten.
Der erste Kunde war die USAF, die fünf YH-19 Maschinen zu Testzwecken bestellte; Der erste Flug der YH-19 war am 10. November 1949. Es folgte die Auslieferung der ersten YH-19 an die USAF am 16. April 1950 und die Auslieferung des ersten HO4S-1-Hubschraubers an die U.S. Navy am 31. August 1950.
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Variants

Versionen

 

H-19A

USAF version of the YH-19 powered by a 600 hp R-1340-57 engine, 50 built.

H-19A

USAF-Version des YH-19 angetrieben von einem 600 PS R-1340-57 Motor, 50 gebaut.

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Operational history

Einsatzgeschichte

 

Air America leased from USAF four Sikorsky H-19A Chickasaw Helicopters. The main type of mission of Air America’s H-19As seems to have been to fly around CIA officers to meetings in outlying areas, to distribute leaflets during elections.
Although official Air America papers quote the serials of the H-19As as “H-1” and so on, only the numbers were painted on the aircraft, without the letter “H-”. Aircraft was unsuited for Laos operations 

 

 
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Air America

Air America

 
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Specifications H-19A

Rotor diamete

Rotordurchmesser

16.16 m

Length

Länge

19.10 m

Height

Höhe

4.07 m

Engine

Motor

1× Pratt & Whitney R-1300-3 radial engine, 700 PS

Maximum speed

Höchstgeschwindigkeit

163 km/h

Empty weight

Leergewicht

2,177 kg

Loaded weight

Startgewicht

3,266 kg

Climb Rate

Steigrate

213 m/min

Service ceiling

Gipfelhöhe

3,200 m

Range

Reichweite

652 km

Armament

Bewaffnung

none

Capacity

Zuladung Crew 2, 10 Troops
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Sikorsky S.55 H-19A Chickasaw
Type

US Serial

Reg.

s/n

Delivered

Withdrawn

Remarks

H-19A

51-3871

1

55.127

8. Jun. 1960

10. Mar. 1961

to Thailand

H-19A 51-3853 3 55.091 7. Apr.1960 26. May 1960 Crashed at Na Nhom, Laos
H-19A 51-3878 8 55.141 7. Apr.1960

10. Mar. 1961

to Thailand

H-19A

51-3849

9

55.076

16. Mar. 1960

10. Mar. 1961

to Thailand

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  • 26. May 1960
    An engine failure resulted in landing in hostile territory, at Na Nhom, Aircraft abandoned on advice of customer

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last update 1. November 2017

written 1. November 2017

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