| Aircraft | |
|---|---|
| Registration / Serial: | N4782S |
| Aircraft Original Type: | Sikorsky S-55 |
| Aircraft Generic Type: | Sikorsky S-55 (H-19/HO4S/HRS/Chickasaw) |
| Aircraft Version: | Sikorsky HRS-1 (S-55B) |
| C/n (msn): | 55033 |
| Operator Titles: | USA - Air Force |
| Location | |
|---|---|
| City / Airport: | Washington - Dulles InternationalMap |
| Region / Country: | Virginia, United States |
| Airport Codes: | ICAO: KIAD IATA: IAD Local: IAD Other: - |
| Collection: | National Museum of the United States Air Force |
| Photo Date: | 8 April 2015 |
| Photo by: | Alastair T. Gardiner |
| Photo ID: | 50458 |
| Photo Comment |
|---|
|
The H-19/HRS-1 was the first practical single-rotor utility helicopter and the first in Sikorsky's successful S-55 series. The centre-of-gravity problems of earlier models were solved by shifting the engine to the front and the passenger compartment to beneath the rotor hub. Other innovations included offset-flapping hinges and hydraulically boosted irreversible controls. This example is now on display at the Steven F. Udvar-Hazy Center of the Smithsonian NASM. Ex US Marines 127799. This photo is copyright © Alastair T. Gardiner, and may not be used or published in any way without permission. It was added on 17 March 2018, and has since been viewed 266 times. |