Any Unknown or Unlisted Aircraft Manufacturer
Flight Crew Commercial
Flight Crew Last 90 Days 10; Flight Crew Total 6500; Flight Crew Type 60
Situational Awareness
Conflict NMAC
General None Reported / Taken
Human Factors
While flying my hang glider out of the Gutzmers Twin Oaks airport I heard an approaching jet sound; flying from north to south at approximately 3500 ft; [a] multi-passenger jet; looked like a Cessna Citation. I was close enough to see the pilots in the cockpit. I was concerned about wake turbulence but encountered none. Other than that incident flight uneventful. Incident was witnessed by another glider in the vicinity.
Hang glider pilot reported a NMAC with a Citation in the vicinity of 5Y3 airport.