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Maiden Flights in Homebuilt Aircraft

First flight of my first homebuilt, Melmoth, at Mojave, on September 6, 1973. Courtesy Peter Garrison
Gemini Sparkle

Key Takeaways:

  • First flights of amateur-built aircraft carry a disproportionately high accident rate (approximately 1 in 130), primarily attributed to builder errors, powerplant problems, or pilot error.
  • Mishaps can be mitigated by rigorous pre-flight inspections involving multiple experienced individuals and thorough ground testing to detect assembly or engine issues.
  • Extreme caution is advised for first flights, especially with heavily modified aircraft or if the pilot lacks recent flight experience, as exemplified by the friend hiring another pilot.
  • Avoiding external pressures from friends and family, and instead having knowledgeable observers, can improve safety during this critical phase.
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My friend Longbridge has been working for years—these things always take far longer than you think they will—on a Lancair 320 with a lot of airframe mods, the most conspicuous of which are a double-slotted Fowler flap, enlarged empennage surfaces, and leading-edge cuffs on the outer panels of the wings. And then there are the powerplant things—some engine and cooling mods, electronic ignition and so on.

Peter Garrison

Peter Garrison taught himself to use a slide rule and tin snips, built an airplane in his backyard, and flew it to Japan. He began contributing to FLYING in 1968, and he continues to share his columns, ""Technicalities"" and ""Aftermath,"" with FLYING readers.

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