• The engine isn't an exact miniature replica of a complicated engine for a full-size jet. It is instead based on a design for a radio-controlled aircraft. However, it was fired up in a contraption made to test regular engines, so it was subject to a similar workout as a full-size engine.
  • The engine, about a foot in length, exists due to an advanced technique called direct metal laser melting.
  • The engine is mainly a proof-of-concept. One GE engineer described it as a "fun side project." It also shows the potential for 3D manufacturing for aircraft. In April, the FAA cleared the first 3D-printed part to fly in a commercial jet. It's not a stretch to imagine entirely 3D-printed engines powering planes in the near future.

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