CT7-6: The Most Recent T700 Growth Derivative Engine

P. L. Kastrineli, W. E. Lightfoot
1990 Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery   unpublished
In June 1988, the most recent growth derivative of the successful T700 family of turboshaft/turboprop engines, the CT7-6, received its FAA type certificate. The CT7-6 is the latest model in the extensive T700/CT7 family of engines. Its design and certification program were the result of the growth derivative approach to meeting the customers' demand for more power. This approach has been successfully used by GE Aircraft Engines to grow the T700/CT7 family to meet the needs of a wide variety of
more » ... a wide variety of customers and aircraft applications around the world. T700/CT7 engines provide power to 14 different aircraft applications and have accumulated over 4.5 million hours of operation on nearly 6,000 engines. This paper traces the evolution of the CT7-6 model and discusses the technology enhancements which were incorporated to make it the most powerful member of the T700/CT7 family. A description is given of the synergism in the design and test phase of the CT7-6, which resulted from the derivative approach in combination with an integrated development program that simultaneously qualified/certified four T700/CT7 engine models. The paper also reviews the initial operator experience with the CT7-6 in a unique new European aircraft, the EH Industries EH101 helicopter.
doi:10.1115/90-gt-241 fatcat:zyc57pvjyrathoxjipjcnfljge