Demo
    Two airplanes are captured in mid-flight against a clear blue sky, each leaving white contrails behind.
    A NASA DC-8 with a fast forward scattering spectometer probe followed a DLR A320 ATRA on nine flights over Germany in 2018 to measure ice particle concentrations.
    Aerial view from an aircraft showing another plane in the distance emitting a vapor trail across a blue sky with scattered clouds below.
    The view of the A320 ATRA’s exhaust plume from the Falcon 20E chase plane.
    Close-up of a metallic, high-precision sensor or instrument attached to an orange and white piece of equipment, possibly for aerospace or scientific research purposes, mounted on a concrete surface.
    One of the probes mounted on the trailing aircraft during flights.