When you look at the effect on a stall speed a few small vortex generators make when installed on upper wing surface it is not likely this would fly with that much disturbance to it's underwing lamina airflow?Either that or alternative maintenance has taken some inspiration from acupuncture.
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When you look at the effect on a stall speed a few small vortex generators make when installed on upper wing surface it is not likely this would fly with that much disturbance to it's underwing lamina airflow?