JT8D-200

JT8D-200: Powering the Boeing MD-80

The JT8D-200 is a series of Pratt & Whitney’s highly successful JT8D family, with more than 14,750 units sold worldwide. This engine series is primarily used in the Boeing MD-80 aircraft family. Since entering service, the entire JT8D family has completed more than 675 million flight hours. Currently, 200 engines are still in use with over 50 operators. The introduction of an e-kit, a new combustion system, has reduced the nitrogen oxide emissions of the JT8D-200 by 25 percent. This ensures compliance with current environmental protection regulations and allows the series to continue in service.

MTU’s involvement in the JT8D

MTU has held a 12.5 percent share in the JT8D-200 series as a risk-and-revenue-sharing partner of Pratt & Whitney since 1984. MTU is responsible for manufacturing individual parts of various assemblies.

Facts

EIS: 1980
The JT8D is a two-shaft turbofan engine in the thrust category 18,500 lbf–21,700 lbf
Single-stage fan
Six-stage low-pressure compressor
Three-stage low-pressure turbine
Seven-stage high-pressure compressor
Single-stage high-pressure turbine
Improved sealing systems
Cooling of the high-pressure turbine
Exhaust gas mixer

MTU competencies

Program share: 12.5%
Modifications of the low-pressure turbine under development
Manufacture of a range of low-pressure turbine parts as well as of high-pressure compressor parts and high-pressure turbine parts and housing