The Woodward Commission Debacle...... Caesarian Section by Dr. Walcott........ 3. Advice and Politics, 1919-1926 A National Aviation Policy.... Saved by the Bill ............ 4. Tunnel Vision, 1919-1926 .............................. John Stack; D-558 with NACA instrumentation.......... 250 Reentry testing; Allen with blunt-body model........... NACA Executive Committee, 1957..... DC-6 damaged by hail Test machine for structures research, Langley laboratory James H. Doolittle sworn in as last NACA chairman 274 279 281 284 286 289 290 Vol. II NACA appropriations by fiscal year: 1915–1935, 1936-1959........ 476 Total NACA appropriations by fiscal year... 477 NACA organization chart, 1918 (hypothetical).. 484 NACA organization chart, 1928 (hypothetical)......................... V-173 model in Langley full-scale tunnel, 1941; submarine model in same tunnel, 1950s...... 513 Air-return passage, Langley full-scale tunnel 516 Langley 5-foot free-flight tunnel 517 Drawing of 19-foot pressure tunnel at Langley; model of F94F in test section....... 519 Page Langley 16-foot high-speed tunnel 520 Inspection of rotor blades, Langley 4-foot supersonic tunnel 522 525 528 Profile of a boundary layer.... 529 Shadowgraph of transition from laminar to turbulent flow 530 Smoke-flow visualization of wing at varying angles of incidence. 531 Separation of boundary layer ....... 532 Transition from laminar to turbulent flow; maintenance of laminar flow. 534 |