Narrative:

While enroute in cruise flight on my normal route for traffic watch; I encountered another aircraft over the location noted. I noticed the aircraft as it appeared approximately 100ft ahead; directly 12 o'clock to my aircraft's nose; flying head on at my aircraft. Immediately I banked my aircraft to the right; and the other aircraft banked to its right. The aircraft was at the same altitude; 1;700 ft. The aircraft was not a manned aircraft; possibly a heavy duty remote control airplane or a uav. It was red and white; and looked similar to a glider but much smaller. It did not appear on my ads-B receiver. To my knowledge; it is not legal to fly an unmanned aircraft at the altitude I was at; which endangered the safety of my flight and passenger; as well as scaring my passenger. The aircraft had no anti-collision light operating and was difficult to see until it was very close. I am unsure if there are any means of finding the operator of this aircraft; but I felt it necessary to report as the aircraft is operating possibly illegally and may potentially cause more incidents in the future with other aircraft.

Google
 

Original NASA ASRS Text

Title: A small aircraft pilot reported a close encounter with a UAV. He took immediate evasive action and avoided a collision with the UAV.

Narrative: While enroute in cruise flight on my normal route for traffic watch; I encountered another aircraft over the location noted. I noticed the aircraft as it appeared approximately 100ft ahead; directly 12 o'clock to my aircraft's nose; flying head on at my aircraft. Immediately I banked my aircraft to the right; and the other aircraft banked to its right. The aircraft was at the same altitude; 1;700 ft. The aircraft was not a manned aircraft; possibly a heavy duty remote control airplane or a UAV. It was red and white; and looked similar to a glider but much smaller. It did not appear on my ADS-B receiver. To my knowledge; it is not legal to fly an unmanned aircraft at the altitude I was at; which endangered the safety of my flight and passenger; as well as scaring my passenger. The aircraft had no anti-collision light operating and was difficult to see until it was very close. I am unsure if there are any means of finding the operator of this aircraft; but I felt it necessary to report as the aircraft is operating possibly illegally and may potentially cause more incidents in the future with other aircraft.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.