I know very little, like long-range aircraft will be used for short-range and medium-range operations. But what is the purpose of using them like that? Also I want to get complete details of "mission mixing" in layman's terms.
1 Answer
Mission mixing appears to be running computer simulations (or other probabilistic analyses) to assess aircraft engine components' reliability also under non-typical or non-designated use. All for the purpose of design or maintenance/inspection strategies, I would assume.
So, mission mixing is not something you would purposely do with actual aircraft. (Or maybe you would, but then it is not called mission mixing.)
Here are a few articles mentioning it:
https://arc.aiaa.org/doi/pdf/10.2514/1.13142 https://asmedigitalcollection.asme.org/GT/proceedings-abstract/GT2012/44731/439/247656
http://en.cnki.com.cn/Article_en/CJFDTotal-HKXB902.017.htm https://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP14812S.htm
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1$\begingroup$ Anecdote: In 2018, when Air Berlin stopped flying, the German Lufthansa flew from Frankfurt to Berlin with sixty B747-400. They said it didn't pay off but it was the easiest way to accomodate all the passengers between FRA and TXL. The "program" stopped after five months. $\endgroup$– PerlDuckFeb 25, 2020 at 9:23