Flight Tests on U.S.S. Los Angeles. Part II : Stress and Strength Determination
This is a 1930 NASA technical report on flight tests of the airship U.S.S. Los Angeles, issued as part two on measuring structural stress and strength, with no named audience beyond engineers. The four pictures are photographs of instrument apparatus: an open cabinet of wired relay units, a control panel with twin dial gauges and knobs, a chart of stacked oscillograph traces, and a riveted sheet-metal recorder housing with a drum and cable.
