Experimental Parasol-Wing Monoplane Frontal Aerodynamic Study (Circa 1924)

Direct frontal view of an experimental parasol-wing monoplane on an unpaved airfield with spectators standing around the wings. — Experimental Parasol-Wing Monoplane Frontal Aerodynamic Study (Circa 1924) · Donald A. Hall Estate Collection

Highlighting Donald A. Hall Sr.'s analytical focus on aerodynamic streamlining and frontal drag reduction, this photograph captures a direct head-on view of an experimental parasol-wing monoplane on a dirt airfield. The exposure details the wing lift struts, cabane rigging, and narrow engine installation, showcasing the high-wing efficiency concepts that Hall evaluated during his transitions from biplane structures toward modern monoplane designs.