The Lufthansa Cargo wants to apply the Aeroshark technology from 2022 to all the Boeing 777F transport aircraft. The surface film jointly developed by the chemical company BASF and Lufthansa Technik is structurally modeled by a shark skin. Shark skin is considered a particularly frictional arm, so that sharks can move effectively and with little energy expenditure in the water. At the cargo aircraft, the Sharkskin foil should reduce the friction resistance and thus can reduce the fuel consumption of the aircraft lackable.
How BASF writes in a message from Monday, the surface structure consists of 50 microns small ribs, the riblets. The slide should "Position-relevant digits" the ten cargo tarpaulins of the type Boeing 777F are attached. The friction should be reduced by about one percent according to Lufthansa Technik. Around 3700 tons of kerosene could be saved a year, it is called. The CO2 outlet was thus 11.700 tonnes sink. This corresponds approximately to the outset of 48 individual flow from Frankfurt to Shanghai, Lufthansa Cargo clarifies the savings potential through the SHarkskin foil. Lufthansa wool so "a contribution to reducing the ecological fuBapprint of our industry" Keep it from the board chairman of Lufthansa Technik Johannes Bubmann.
The film was developed in the Coating division of BASF. The Department "Beyond Paint Solutions" develops surface films, which at the same time have a function, as the riblet slide. For the application in the aviation area, however, the film had to be adapted for the effs of the wind and weather: especially temperature and prere fluctuations in different high and UV radiation provide hard conditions to the sharkskin film. In addition, the film had to be constructed so that damage can be easily repaired.
Other CO2 savings possible
Research on a shark skin for aircraft is not new, BASF and Lufthansa Technik and other companies worldwide have been researching such a procedure for several years. At the end of 2019, an Lufthansa Boeing was equipped 747-400 passenger machine in the lower fuselage area with such a film and completed 1500 flight hours in the lending service. The emissions of the aircraft could be reduced by 0.8 percent by using the 500 m2 groove film surface. Lufthansa ames that the potential at the 777F is still significantly high because the flat on which the film is applied is still significantly coarse, for example, because at the transport aircraft no long windows are located as on passenger machines.
The Aeroshark technology wants to further refine BASF and Lufthansa Technik. According to model calculations, then in one "Maximum expansion stage" The film the CO2 emissions of a maximum of three percent decline.