The relative newness of the DC-8-60's plus their advanced aerodynamic and structural technology combined with the CFM56-2 high by-pass engine results in a modern, economic aircraft.
FAR Part 36 Noise Requirements and the prospect of ever increasing fuel costs make the retrofit DC-8-60's a prudent investment. The type certificate for these re-engined aircraft will designate them as DC-8-70's. Performance improvements, noise reduction and reduced fuel consumption provide distinct and quantifiable benefits to the operators of the DC-8-70's. These benefits are verified by the results of certification flight testing and will be presented in detail.