Ultralight
Flight Crew Sport / Recreational
Flight Crew Last 90 Days 63; Flight Crew Total 2000; Flight Crew Type 2000
Situational Awareness
Conflict NMAC; Deviation / Discrepancy - Procedural FAR
General None Reported / Taken
Airspace Structure; Human Factors
I was mid-way through my 4th revolution while turning in a weak thermal when I heard the distinct turbine whine of a light aircraft magneto. I looked up and behind me and observed a Cessna 172 or 152 approximately 100 FT above my hang glider on glide with its propeller wind milling. It appeared to be on a 160-degree course heading and proceeded away from me uninterrupted. Because I was in direct sunlight and the large holographic reflective surfaces on my leading edges would have been easily visible for 5 miles I have to assume the pilot was curious and glided toward me intentionally. Obviously; I don't know whether the pilot thought he was seeing a Mylar party balloon or knew it was a hang glider but in any event the incursion looked intentional and at 100 FT proximity was unsafe.
Hang glider pilot reported a near-mid-air-collision with a general aviation aircraft.