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Fig. 7. Time courses of the (A) lift coefficient (CL) and (B) drag coefficient (CD) in one cycle for various Reynolds number (Re). Stroke amplitude ({Phi})=150°, midstroke angle of attack ({alpha}m)=40° and non-dimensional duration of wing rotation ({Delta}{tau}r)=1.87 [mean angular velocity of rotation ({varpi})=0.93]; symmetrical rotation.