Motorlet M-701

The Motorlet M -701 was designed and manufactured in Czechoslovakia jet engine. It was used to drive the jet trainer Aero L -29 Delfin; in the period 1961 to 1989 9020 engines of this type were produced.

Development

In 1955, the Czechoslovak engine manufacturer Motorlet began work on the development of a new jet engine. This was designed by the aircraft manufacturer Aero training jet aircraft Aero L -29 Delfin was to be fitted, which fell on a tender for a jet powered trainer aircraft for the air forces of the member states of the Warsaw Pact. As a result, under the name Motorlet M -701 was the first developed in Czechoslovakia jet engine. Previously Motorlet had already WK -1 can gain experience in license - production of the Soviet jet engine Klimov.

The M -701 was a single-shaft turbojet engine with a single-stage centrifugal compressor. The compressed air was supplied to seven tubular combustion chambers, which was followed by a single stage axial turbine 61 blades.

The engine ran for the first time in 1958 and 1960 was used in the first prototype of the L-29. This machine had previously been flown in with an Armstrong Siddeley Viper. The L-29 went from the award as the winner and was ordered in large numbers; Series production of the engine M -701 was recorded at Motorlet in Jinonice in Prague in 1961. As the production of the engine was set in 1989, the number of copies produced amounted to 9020 pieces.

Use

• Aero L -29 Delfin

Specifications

• Length: 2067 mm
• Diameter: 896 mm ( height 928 mm max. )
• Weight: 330 kg
• Thrust: 8.75 kN ( takeoff thrust at 15.500/min ), 7.87 kN (nominal thrust at 14.950/min )
• Compression ratio: 4.3:1
• Air flow: 19.6 kg / s
• Specific fuel consumption: 1.14 g / (kN · s ) at rated thrust