The Dobrynin RD-7 or "VD-7" is a Soviet single-shaft axial-flow turbojet engine, which was produced in a small series. "RD" means реактивный двигатель (jet engine). Designed by designer Vladimir Alekseevich Dobrynin (the original designation is VD-7), it was intended for installation on the Myasishchev Type 103 strategic bomber (M-4, later 3M).
| RD-7 | |
|---|---|
| |
| Tupolev Tu-22 with RD-7 engines | |
| Type | Turbojet |
| National origin | Soviet Union |
| Manufacturer | Rybinsk Plant No. 36 |
| Designer | Dobrynin OKB |
| Major applications | Tupolev Tu-22 |
| Produced | 1952-1956 |
Variants
edit- VD-7B:
- VD-7P:
- RD-7M:
- RD-7M-2:
- VD-7MD:
Applications
editSpecifications (VD-7M)
editGeneral characteristics
- Type: Single-shaft turbojet
- Length: 7,300 mm (290 in)
- Diameter: 1,410 mm (56 in)
- Dry weight: 3,750 kg (8,270 lb)
Components
- Compressor: Axial flow, 9-stage LP, 7-stage HP
- Turbine: Axial, 2-stage
Performance
- Maximum thrust: Dry: 103 kN (10 500 kgf), 157 kN (16000 kgf) with afterburner , 107/110 kN and 161/165 afterburner for later variants
- Overall pressure ratio: 11
- Turbine inlet temperature: 630°C
- Thrust-to-weight ratio: 4.27
See also
editRelated lists
External links
edit- RD-7 on авиару.рф (in Russian)