[Ú 03] 261Between 2014 and 2025 the Lufthansa Group will be taking delivery of a total of 261 low-noise and highly fuel-efficient aircraft. 03 The Lufthansa Boeing 747-8 is powered by thoroughly redesigned, considerably quieter, and highly fuel-efficient engines. The most striking of the numerous tech- nological innovations is the chevron, a sawtooth pattern on the trailing edge of the engine’s exhaust nozzle. Sustainability Report Balance // Issue 2014 // Lufthansa Group // 15