The 1940s

Aircraft Program Evolution

  • Junker’s Max Muller develops the first successful turboprop engine.
  • Captain Charles E. Yeager breaks the sound barrier with the Bell X-1.
  • Boeing’s B-50 Superfortress flies the first non-stop, around-the-world flight.


Alcoa Aerospace Technology Evolution

  • Alcoa alloy 7075-T651 is used on the B-29.
  • Alcoa begins making forged bearings for aircraft applications.
  • Huck produces the revolutionary "Lockbolt," which fastens two halves of a fighter aircraft’s dropable wing tank.
Lockbolt

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Huck produces the revolutionary "Lockbolt," which fastens two halves of a fighter aircraft’s droppable wing tank.