Preflight Pass

Powerplant · Lesson 35 of 40

Ignition and Starting Systems

How a magneto makes a spark, how impulse couplings and starting vibrators help at cranking speed, timing, spark plugs, FADEC and solid-state ignition, turbine igniters, and the starters that turn piston and turbine engines.
12 min read

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Part of A&P Complete

This lesson is in the full course

  • Describe the magnetic, primary and secondary circuits of a high-tension magneto and the E-gap position
  • Explain how the ignition switch, impulse coupling and shower of sparks system work
  • List the conditions for correct magneto-to-engine timing and the effects of early and late timing
  • Choose and inspect spark plugs using heat range, reach, gap and fouling appearance
  • Compare FADEC, capacitor-discharge turbine ignition and the main types of engine starters