The next steps in flight

A look at aero engine and assembly developments as commercial airframe and engine manufacturers begin the biggest battle of all-for next-generation short-haul jet aircraft sales.

Back in the summer of 2010, the international aerospace community was buzzing with speculation regarding whether Airbus or Boeing would act first in offering a new product that could give a competitive edge in the largest civil aerospace sector of all-the narrow-body 150-seat market.

With monthly production rates for both the A320 and 737 rising through 40 and still climbing, there is a lot at stake. Neither wants to risk any slackening in customer interest at a time when low-cost airlines are growing rapidly and older fleets require replacement. The continuing appeal of the 737 speaks for itself-last year the company delivered no fewer than 376 aircraft, while A320 sales now total over 6700 aircraft.