MTR390

from Wikipedia, the free encyclopedia
MTR390 installed in a Eurocopter Tiger

The MTR390 is a helicopter engine that is developed and manufactured by a consortium of MTU Aero Engines , Turbomeca , Rolls-Royce plc and Industria de Turbo Propulsores (ITP). It is civilly and militarily approved, but has so far only been used in the Eurocopter Tiger support helicopter .

history

The first development work began in the mid-1970s, and the program started 10 years later. The engine received military and civil certification in the mid-1990s and was mass-produced as the MTR390-2C from 2003. The improved version MTR390-E has been developed since 2005 ("E" for enhanced , German for improved ).

Manufacturing consortia

After the manufacturer consortium was expanded to include the Spanish ITP, a second consortium company was founded. Both are based in Hallbergmoos .

MTU Turbomeca Rolls-Royce

The three European engine manufacturers MTU, Turbomeca and Rolls-Royce founded MTU Turbomeca Rolls-Royce GmbH (MTR) in June 1989 for development, production and maintenance . This is the contract partner for the European procurement organization OCCAR and the Australian Aerospace for the basic version MTR390-2C.

MTU Turbomeca Rolls-Royce ITP

A new company was founded in November 2005 under the name MTU Turbomeca Rolls-Royce ITP GmbH (MTRI) with the participation of the Spanish ITP to develop, manufacture and maintain the enhanced version . This is the contractual partner of OCCAR for the MTR390-E version.

technology

The engine is designed as a two-shaft design and has a modular structure:

  • Module 1 - gear unit: This combines reduction gear and auxiliary gear to drive the attachments in one housing.
  • Module 2 - core engine: The core engine has two radial compressor stages, an annular combustion chamber and a single-stage high-pressure turbine.
  • Module 3 - power turbine: The low-pressure shaft is driven by a two-stage low-pressure turbine.

Attachments such as the generator are located in the upper area, where they are better protected against fire.

Technical specifications

MTR390-2C
basic variant
MTR390-E
"Enhanced"
Dry weight (kg) 169 <179
Compression ratio 13: 1 14: 1
Starting power (kW) 958 1.049
Continuous output (kW) 873 1,000

Web links

Individual evidence

  1. a b c MTR website. MTR, accessed on August 31, 2011 (English, see subpage if necessary).
  2. a b c d MTRI website. MTRI, accessed on August 31, 2011 (English, see subpage if applicable).