I get it... basically what you are saying is that all Air speed Indicators ( ASIs.) are faulty, as they do NOT measure Air Speed.
So we have to use these inaccurate Instruments, and apply 'Fiddle Factors' until someone creates a true Air-Speed reading Instrument.
I think someone will maybe come up with a frictionless Wind-Mill driven device, in the near future. This could revolutionise air transport, and herald a new era in aviation.
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Didn't the Wright Flyer have something similar...?