35.
The answer is: C
Explanation
Answer: C - David Warren
Explanation:
- Dr. David Warren, an Australian scientist, invented the Black Box Flight Recorder in 1953–54 while working at the Aeronautical Research Laboratory in Melbourne, Australia.
- His invention came after the mysterious crashes of the world's first commercial jet airliner - the de Havilland Comet - where investigators had no way to determine what happened in the cockpit before the crash.
- The device records flight data and cockpit conversations, allowing investigators to reconstruct events leading to an accident.
Why other options are wrong:
- Robert Stephenson - Famous civil/railway engineer, known for building early locomotives and bridges. No aviation connection.
- John Shorthand - No significant aviation invention associated with this name.
- David Robinson - No notable aviation invention linked to this name.
Key facts about Black Box:
- Invented by : David Warren
- Year : 1953–54
- Country : Australia
- Actual colour : Bright Orange (not black)
- Purpose : Records flight data and cockpit audio
- Two components : FDR (Flight Data Recorder) + CVR (Cockpit Voice Recorder)
- Withstands : Temperatures up to 1100°C, deep water pressure, high impact
- Location in aircraft : Tail section (safest part in crash)
Why is it called Black Box if it is Orange:
- Originally the casing was black
- Later changed to bright orange for easy location after crashes
- The term "Black Box" stuck as common usage despite colour change
- Officially called Flight Recorder, not Black Box
Important aviation inventions - must know:
- Aeroplane : Wright Brothers (1903)
- Jet Engine : Frank Whittle (UK)
- Black Box : David Warren (Australia)
- Parachute : André Garnerin
- Helicopter : Igor Sikorsky