Ryan NYP Main Fuel Tank Baffle Assembly on Sawhorses (View 1) (1927)

Frontal view of internal fuel tank baffle grid resting on wooden sawhorses outside the workshop door. — Ryan NYP Main Fuel Tank Baffle Assembly on Sawhorses (View 1) (1927) · Donald A. Hall Estate Collection

An engineering construction photograph of the internal baffle grid for the 425-gallon main fuel tank resting on wooden sawhorses outside the Ryan hangar doors. Details the interlocking sheet-aluminum bulkheads and flanged cutouts. Donald A. Hall Sr. rejected the first fabricated tank due to excess weld weight, requiring a rebuilt assembly with strict bead deposition per linear inch to satisfy critical gross weight calculations.