KleinHeerenbrink, Marco Christoffer Johansson, L. Hedenström, Anders Velocity field data Trefftz-plane measurement in flapping flight from Multi-cored vortices support function of slotted wing tips of birds in gliding and flapping flight Vector data of figure 1c in tab separated text format (y [mm], z [mm], v [m/s], w [m/s]) animal flight;slotted wing tips;separated outer primary feathers;flight efficiency;jackdaw Corvus monedula;wind tunnel 2017-05-08
    https://rs.figshare.com/articles/dataset/Velocity_field_data_Trefftz-plane_measurement_in_flapping_flight_from_Multi-cored_vortices_support_function_of_slotted_wing_tips_of_birds_in_gliding_and_flapping_flight/4982663
10.6084/m9.figshare.4982663.v1