| Registration / Serial: | 56-6723 |
| Alternate Serial: | 66723 |
| Aircraft Original Type: | Bell 204 |
| Aircraft Generic Type: | Bell 204/205/210 (H-1/40 Iroquois) |
| Aircraft Version: | Bell 533 |
| C/n (msn): | 4 |
| Operator Titles: | USA - Army |
| Location: | In Flight |
| Region / Country: | Unknown State, United States |
| Photo Date: | 21 October 1963 to 31 October 1964 |
| Photo from: | AirHistory.net Photo Archive |
| Photo ID: | 379293Submit Correction |
| View count: | 354 |
Originally the first YH-40, redesignated YHU-1B and then YUH-1B, this early Huey was rebuilt for high-speed research. It is fitted here with a pair of additional J69 engines. Wings were also added later on. In 1969 it reached a speed of 509 km/h (316 mph). Photo from: US Army / Wright State University
| Registration / Serial: | 56-6723 |
| Alternate Serial: | 66723 |
| Aircraft Version: | Bell 533 |
| C/n (msn): | 4 |
| Operator Titles: | USA - Army |
| Location: | In Flight | Region / Country: | Unknown State, United States |
| Photo Date: | 21 October 1963 to 31 October 1964 |
| Photo from: | AirHistory.net Photo Archive |
| Registration / Serial: | 56-6723 |
| Alternate Serial: | 66723 |
| Aircraft Original Type: | Bell 204 |
| Aircraft Generic Type: | Bell 204/205/210 (H-1/40 Iroquois) |
| Aircraft Version: | Bell 533 |
| C/n (msn): | 4 |
| Operator Titles: | USA - Army |
| Location: | In Flight |
| Region / Country: | Unknown State, United States |
| Photo Date: | 21 October 1963 to 31 October 1964 |
| Photo from: | AirHistory.net Photo Archive |
| Photo ID: | 379293Submit Correction |
| View count: | 354 |
Originally the first YH-40, redesignated YHU-1B and then YUH-1B, this early Huey was rebuilt for high-speed research. It is fitted here with a pair of additional J69 engines. Wings were also added later on. In 1969 it reached a speed of 509 km/h (316 mph). Photo from: US Army / Wright State University
| Registration / Serial: | 56-6723 |
| Alternate Serial: | 66723 |
| Aircraft Version: | Bell 533 |
| C/n (msn): | 4 |
| Operator Titles: | USA - Army |
| Location: | In Flight | Region / Country: | Unknown State, United States |
| Photo Date: | 21 October 1963 to 31 October 1964 |
| Photo from: | AirHistory.net Photo Archive |