First fire safety regulations issued between 1940s-1960s for 50-150 seat aircraft. 1983 DC-9 accident led to FAA updates and expanded testing requirements. Aircraft cabins made from lightweight polymers pose significant fire risk
Pre-flight inspection includes checking control surfaces, fuel, and emergency supplies. Weight and balance sheet must be completed before takeoff. Propeller inspection is crucial before engine start
Founded in 2009 by JoeBen Bevirt in Santa Cruz, California. Developing electric vertical takeoff and landing (eVTOL) aircraft. Headquartered in Santa Cruz with offices in California and Munich
Dutch roll occurs when aircraft rolls in one direction while yawing in opposite direction. Stability is defined as ability to return to original state after disturbance. Aircraft has lateral (roll) and directional (yaw) stability
Created in 1926 by merging Army and Navy aircraft units. Expanded from four to seven squadrons during 1930s. By 1945 had over 800 combat-ready aircraft with 15 fighter divisions. Faced fuel shortages during WWII, using domestic oil shale. About 250 aircrew died in crashes 1939-1945
Developed as fighter variant of Beaufort torpedo bomber during WWII. First prototype flew in July 1939 with Hercules engines. Featured all-metal monocoque construction with twin engines. Could carry heavy armament and early aircraft interception radar