In flight refueling
The de Havilland DH-4B tanker dangles a hose for the DH-4B receiver to grab over Rockwell Field. In the tanker, 1st Lt. Frank W. Seifert holds the hose in the rear cockpit while the pilot, 1st Lt. Virgile Hine, is in the front. Capt. Lowell H. Smith flew the receiver and 1st Lt. John P. Richter handled the hose.