Short Final: ‘Digital’ Navigation

Gemini Sparkle

Key Takeaways:

  • During a 1980s helicopter cross-country flight to Dulles, the pilot lacked sophisticated navigation instruments like VOR or NDB.
  • When asked by ATC about his navigation capabilities, the pilot humorously replied he only had a compass, a VFR map, and a thumb.
  • ATC successfully guided the pilot using basic visual landmarks, demonstrating adaptive air traffic control in a low-tech scenario.
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From AVweb reader Erik Eriksson

Rounding out my 1980s helicopter training in a Robinson R-22 in Maryland, my instructor upped the game by sending me on one final cross-country flight, including a landing at Dulles International.

As I got close to the airport and Potomac Approach established my position, the following conversation ensued:
Approach: Maintain current heading, intercept and follow radial XXX AML VOR.
Me: Negative VOR, Sir.
Approach: In that case maintain current heading, intercept and follow radial XXX Georgetown NDB.
Me: Negative NDB, Sir.
Approach: WHAT DO YOU HAVE THEN?
Me: I have a compass, a VFR map, and a thumb, Sir.

Approach directed me to follow XYZ highways and, upon passing a gas station, to call in from the right side of the highway. It all worked out as planned.

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