Narrative:

During a navigational flight competition that I was participating in; cruising at a proper VFR cruise altitude of 4;500 feet. My G650 GPS picked up a target 12 o'clock same altitude less than 1 mile on a collision course with me and a safety observer. Since it was day VFR; I turned on all my lights; and even started flashing my landing light to see if the traffic would move. He did not. The intruder was a cirrus sr-22 that maintained its course and went straight for us. I veered off the left 30 degrees and made sure to scan for other traffic before doing so. I understand that I was not talking to ATC in the lvk valley where IFR/VFR traffic meet; but I had one com tuned into lvk tower and one with norcal 125.35. I believe that we are not at fault and were more cautious than the other pilot.

Google
 

Original NASA ASRS Text

Title: C172 pilot and observer reported a NMAC with another light aircraft in the vicinity of LVK airport.

Narrative: During a Navigational Flight Competition that I was participating in; cruising at a proper VFR cruise altitude of 4;500 feet. My G650 GPS picked up a target 12 o'clock same altitude less than 1 mile on a collision course with me and a safety observer. Since it was Day VFR; I turned on all my lights; and even started flashing my landing light to see if the traffic would move. He did not. The intruder was a Cirrus SR-22 that maintained its course and went straight for us. I veered off the left 30 degrees and made sure to scan for other traffic before doing so. I understand that I was not talking to ATC in the LVK valley where IFR/VFR traffic meet; but I had one com tuned into LVK tower and one with NorCal 125.35. I believe that we are not at fault and were more cautious than the other pilot.

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.