Sikorsky R-4B Hoverfly

- 1example
- 1place
About the Sikorsky R-4
- Type of aircraft
- helicopter
- First flight
- 14 January 1942
- Entered service
- 1944
- Retired
- 1946
- Total built
- 131
Where you can see one
1 example is on public display.
| Collection | Identity | Status |
|---|---|---|
| National Museum of the United States Air Force | 43-46506 | static display |