Boeing 737 Aims For Greater Fuel Efficiency
In response to increasing demand from airlines, Boeing has launched an improved version of the popular 737 in which a more fuel efficient engine will be used. The Boeing 737 is cited as the world’s best-selling aircraft for commercial use, and this engine upgrade is one of the measures being taken by Boeing to ensure that it retains its market share. Rising fuel costs have become a heavy burden on airlines struggling to remain competitive in the commercial travel market, and engines offering greater fuel efficiency can translate into big savings for airlines.
The new 737 MAX will be fitted with the Leap-1B engine, manufactured by current engine supplier, CFM International – a joint venture between French company Safran and General Electric. The new engines are expected to be up to 12 percent more fuel efficient than the current engines, with changes including a larger fan and design adjustments to allow more of the air entering the front of the engine to bypass the engine core. Moreover, new materials used in the engines are able to withstand more heat and there will be a reduced gap between the tips of the fan and the shell enclosing the engine. According to associate aerospace engineering professor at Embry Riddle Aeronautical University, Magdy Attia, all these changes will result in the new engine being more fuel efficient than those in the 737 airplanes currently in service.
It has been reported that Boeing had been considering a complete redesign on the 737, but with Airbus due to release its more fuel efficient airplane in 2015 and up to 1,000 already on order, it was decided to keep the current 737 design, and replace the engine. Research has revealed that airlines are quite satisfied with the current design of the 737 and are willing to support Boeing’s changeover to the new 737 MAX. The new version is expected to go into service in 2017 and Boeing already has a commitment from five airlines to buy 496 of the 737 MAX. Boeing executive vice president, and head of Boeing’s commercial airplane division, was reported as saying with regard to the 737 MAX: “Our customers have told us that they want efficiency, and they want it soon, and they want it with certainty, and that’s what this airplane will do.”