30th Fighter Squadron P-40 Warhawks, Aguadulce Army Airfield, Panama 1943.  Note the single Cessna UC-78 twin engine trainer on the flightline.
United States Army Air Forces
1943
USAAF Photo via Hagdedorn, Dan (1995), Alae Supra Canalem: Wings Over the Canal, Turner Publishing, ISBN-10: 1563111535