Ryan NYP Fuselage Tailpost, Rudder Post, and Skid Jack Point Detail (1927)

Macro engineering view of bare steel-tube tailpost, rudder hinge fittings, and reinforced tail skid jack point. — Ryan NYP Fuselage Tailpost, Rudder Post, and Skid Jack Point Detail (1927) · Donald A. Hall Estate Collection

A primary engineering negative print documenting the uncovered welded chrome-molybdenum steel-tube empennage structure of the Spirit of St. Louis. The photograph provides a macro view of the vertical tailpost, rudder hinge attachment collars, elevator control cable pulleys, internal bracing tubes, and the reinforced tubular tail skid jack point shoe engineered by Donald A. Hall for field ground handling and maintenance.