1924
From The Space Library
High-speed wind tunnel (5 foot, 1,000 bp, 200 mph) at McCook Field used continuously, handling 150 tests of 17 airfoil, 24 model, and 15 fuselage tests.
High-speed photography of sprays prodnced by fuel injection valves successfully developed, and flight study of Roots-type supercharger with DH-4 and DT-2 aircraft conducted, at Langley Laboratory. Supercharging increased practical ceiling of DH-4 from 14,500 feet to 31,000 feet, and of the DT-2 from 18,500 feet to 28,000 feet.
NACA Report No. 207 by L. J. Briggs, G. F. Hull, and Hugh L. Dryden of the National Bureau of Standards, "Aerodynamic Characteristics of Airfoils at High Speeds," was major contribution reporting on tests of airfoils at near supersonic speeds.
Max Valier’s Der Vorstoß in den Weltenraum published in the Fall of 1924 and almost sold out 4000 copies by December. The book would go on to six more editions before Valier's death in 1930.
- 1924
- January
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