USA - Naval aviation and armament
Piasecki HUP (UH-25) Retriever utility helicopter
HUP-1 Retriever
| Modification | Purpose | Deliveries | Number of commissioned | Discarding | Differences from the previous modification |
| HUP-1 | utility | 1/1951 - 6/1954 | 32 | 8/1964 | Continental R-975-34 engine (525 hp), 4 passenger |
| HUP-2, 1962 - UH-25B | 193 | R-975-46 engine (550 hp) | |||
| HUP-2S | ASW | few modified from HUP-2 | sonar | ||
| HUP-3, 1962 - UH-25C | utility | 50 | R-975-46A engine (550 hp), 4 passenger, without sonar |
| Modification |
HUP-3 (UH-25C) |
|
Rotor diameter, m |
2 x 10.67 |
|
Length, m |
9.7 |
|
Height, m |
3.81 |
|
Rotating area, m2 |
178.74 |
|
Empty mass, kg |
1782 |
|
Full flying-off mass, kg |
2767 |
| Engine | 1 Continental R-975-34A |
| Power, h. p. | 550 |
| Maximal speed, km/h | 169 |
| Cruise speed, km/h | |
| Flying range, km | 547 |
| Vertical speed, m/s | |
| Maximal altitude, m | 3050 |
| Complement | 3 |
| Armament | 4 passenger |
HUP-1 Retriever
© Ivan Gogin, 2008