Those cylinders are positioned axially (in line) with the airflow, but they did have perpendicular ones in the book that came from too linked above. Either way, 0.4 - 0.8 seems way too low.
Those cylinders are positioned axially (in line) with the airflow, but they did have perpendicular ones in the book that came from too linked above. Either way, 0.4 - 0.8 seems way too low.