PPRuNe Forums - View Single Post - What causes "blowback/flapback" when accelerating through transverse flow effect?
Old 15th Aug 2022, 08:26
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henra
 
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Originally Posted by SunofAtom
What is it that makes this one moment seem so different than any other phase of flight? Or is it just in my head?
Could it be due to the relatively instantaneous change of the airflow from static hover with its specific airflows through the disc to 'normal flight' airflow which happens when going through ETL? The Rotorblades 'suddenly' getting clean air from the front. This could potentially lead to some 'overshooting' of the blade track, somewhat similar to a gust hitting the disk.
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