Testing has shown that drag of the airframe and the thrust-specific fuel consumption of the PW1200G engine are matching targets. There is time for improvement.
Boeing seems to have a popular concept in the NMA, but offers few clues on if it is any nearer to closing the business case for a widebody at narrowbody prices.
Delivery of a sports car into space is a light touch, but the low-cost, privately developed rocket signals changing times for industry. Photo: John Kraus
The C919 delivery objective has slipped again by one year, but Comac is at least publicly disclosing it, which probably indicates a higher level of confidence.