NATS 1775 Lecture Notes - Lecture 3: Jet Engine, Commercial Aviation, Cavity Magnetron
28 Jan 2016
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Examples include water cooled engines being replaced by air-cooled engines and material changes as planes were increasingly built using metals instead of wood. Benefits included cheaper planes that were lighter and could fly faster. Changes to plane wing flaps also allowed heavier and more powerful planes to land safely. Us companies like boeing and douglas relied on military support (us. Navy) during interwar period to support their research and development. Technology designed for military was then used for civilian purposes. Commercial or civil aviation required following: development of airports, chartered airways, safety laws, weather service, beacons for night flights. Commercial aviation in place by 1920s but only takes off in 1930s; predominant use of planes until this time was for mail. Many us companies like american, twa, delta, northwest and united were initially a branch of an airplane manufacturing entity; separated because of anti-trust laws in us in 1930s. Passenger driven aviation aided by development of douglas dc-3 in.
