| Registration / Serial: | 43-46506 |
| Alternate Serial: | 346506 |
| Military Code: | 16 |
| Aircraft Original Type: | Sikorsky S-47 |
| Aircraft Generic Type: | Sikorsky S-47/VS-316A/R-4 Hoverfly |
| Aircraft Version: | Sikorsky R-4B Hoverfly |
| C/n (msn): | 39 |
| Operator Titles: | USA - Air Force |
| City / Airport: | Dayton - Wright-Patterson AFB / Wright AFB (KDWF / DWF)Map |
| Region / Country: | Ohio, United States |
| Collection: | National Museum of the United States Air Force |
| Photo Date: | 15 December 2024 |
| Photo by: | Richard VandervordContact |
| Photo ID: | 822315Submit Correction |
| View count: | 44 |
First flown in January 1942, the R-4 holds the honour of being the world's first helicopter to go into production and the first to see combat, despite being difficult to fly and suffering from excessive vibration. This one (of 131 built) was obtained from the University of Illinois in 1967
| Registration / Serial: | 43-46506 |
| Alternate Serial: | 346506 |
| Aircraft Version: | Sikorsky R-4B Hoverfly |
| C/n (msn): | 39 |
| Operator Titles: | USA - Air Force |
| City / Airport: | Dayton - Wright-Patterson AFB / Wright AFB (KDWF / DWF)Map | Region / Country: | Ohio, United States |
| Photo Date: | 15 December 2024 |
| Photo by: | Richard VandervordContact |
| Registration / Serial: | 43-46506 |
| Alternate Serial: | 346506 |
| Military Code: | 16 |
| Aircraft Original Type: | Sikorsky S-47 |
| Aircraft Generic Type: | Sikorsky S-47/VS-316A/R-4 Hoverfly |
| Aircraft Version: | Sikorsky R-4B Hoverfly |
| C/n (msn): | 39 |
| Operator Titles: | USA - Air Force |
| City / Airport: | Dayton - Wright-Patterson AFB / Wright AFB (KDWF / DWF)Map |
| Region / Country: | Ohio, United States |
| Collection: | National Museum of the United States Air Force |
| Photo Date: | 15 December 2024 |
| Photo by: | Richard VandervordContact |
| Photo ID: | 822315Submit Correction |
| View count: | 44 |
First flown in January 1942, the R-4 holds the honour of being the world's first helicopter to go into production and the first to see combat, despite being difficult to fly and suffering from excessive vibration. This one (of 131 built) was obtained from the University of Illinois in 1967
| Registration / Serial: | 43-46506 |
| Alternate Serial: | 346506 |
| Aircraft Version: | Sikorsky R-4B Hoverfly |
| C/n (msn): | 39 |
| Operator Titles: | USA - Air Force |
| City / Airport: | Dayton - Wright-Patterson AFB / Wright AFB (KDWF / DWF)Map | Region / Country: | Ohio, United States |
| Photo Date: | 15 December 2024 |
| Photo by: | Richard VandervordContact |