Tumansky RD-9

From Wikipedia, the free encyclopedia

Tumansky RD-9 was the first turbojet engine completely designed in USSR (previous engines were based on German and British designs)^{[verification needed]}. First created in the Mikulin OKB as AM-5 in 1953, it was redesigned with a new compressor with higher sub-sonic airflow and renamed AM-9. The engine completed testing in 1955. When Tumansky replaced Mikulin as the chief designer in the OKB in 1956, the engine was renamed RD-9.

[edit] RD-9 Versions

• RD-9A and RD-9AK - non-afterburning versions for Yak-25 and Yak-26
• RD-9AF-300 and RD-9AF2-300 - afterburning versions for Yak-27 and Yak-28
• RD-9B - afterburning version for early MiG-19
• RD-9BF-811 - afterburning version for late MiG-19

The RD-9B was also used in the civil east german jetliner project Baade 152 in 1958 and 1959. Here it was replaced when East German Pirna 014 engines were completed.

[edit] Specifications (RD-9BF-811)

General characteristics

• Type: Afterburning turbojet
• Length: 5,560 mm (219 in)
• Diameter: 670 mm (26 in)
• Dry weight: 725 kg (1,600 lb)

Components

• Compressor: Axial compressor

Performance

• Thrust:
  
  • 3,000 kgf (6,600 lbf, 29 kN) military power
  • 3,750 kgf (8,300 lbf, 37 kN) with afterburner
• Specific fuel consumption:
  
  • 104 kg/(h·kN) (1.02 lb/(h·lbf)) military power
  • 169 kg/(h·kN) (1.66 lb/(h·lbf)) with afterburner
• Thrust-to-weight ratio: 50.8 N/kg (5.2:1)