Orenda OE600

OE600
A front view of the tidy gear reduction housing on the Orenda OE600 engine
Type V-block aircraft engine
National origin Canada
Manufacturer Orenda Aerospace
First run 1990s

The Orenda OE600 was a 600 hp-class liquid-cooled 8-cylinder V-block aircraft engine intended to re-introduce piston power to aircraft normally powered by the famous Pratt & Whitney Canada PT6 turboprop. The piston engine offers much better fuel economy, which Orenda Aerospace felt would be attractive for older aircraft whose engines were reaching the end of their lifespan. However, changes in Orenda's business in the post-9/11 market led to the project being canceled.