A new 30,000 pound thrust class engine requirement has evolved for commercial transport service in the early 1980's. The CF6-32, a derivative of the General Electric CF6-6D high bypass engine, is described. Both engines utilize a common core which is completely interchangeable. Economic justification is developed for the CF6-32. Using the CF6-6D mature core with an initial capability of low shop visit rate, more than offsets the performance advantage that would be inherent in a new engine tailored to the new airplane thrust requirements and available in the early 1980's.