Sikorsky R-4
The Sikorsky R-4 is the first military helicopter built in USA. It flown during World War II and beginning of Korea War. Some were used by US Navy, US Coast Guard and Fleet Air Arm.
| Sikorsky R-4 | |
|---|---|
 | |
| Sikorsky R-4 of the Fleet Air Arm. | |
| Role | Helicopter |
| National origin | USA |
| Manufacturer | Sikorsky. |
| First flight | 1942 |
| Introduction | 1943 |
| Status | Out of order |
| Primary user | United States Army Air Force |
| Number built | 131 examples. |
Sikorsky R-4 Media
In this image taken in 1944, one of Langley Research Center's Sikorsky YR-4B/HNS-1 helicopters is seen in the 30 × 60 full-scale tunnel.
Comdr. Frank A. Erickson, USCG & Dr. Igor Sikorsky, Sikorsky Helicopter HNS-1 C.G. 39040
Sikorsky R-4B at National Museum of the United States Air Force
Royal Air Force Hoverfly I in use by Fairey Aviation in late 1945
R-4B Hoverfly, US Army Aviation Museum
3-view line drawing of the Sikorsky R-4
_-_GPN-2000-001729.jpg)
.jpg)
-KOREAN WAR-
The R-4 was used in Korea as a rescue helicopter helping to carry wounded troops to military hospitals. Sikorsky said his greatest accomplishment with the helicopter, even better than making more space for air fields was the tens of thousands of live his invention saved through the multitude of wars it was deployed in.