Narrative:

I waited for a helicopter to land. After it did and it was no longer visible on the runway; I announced my takeoff; taxied on the runway; and started my takeoff run. The helicopter was still at the far end of the runway; apparently practicing hovering; and had not been apparent to me. [Due to the paint color; it] disappeared in the background clutter. I climbed away to the left and it veered off to the right.helicopters are asked not to hover taxi on the runways; but they do. When done at the far end of a 3;300-foot runway they are difficult to see against the background. In this case; I should have repeated my calls and specifically asked for verification that the helicopter was clear of the runway.

Google
 

Original NASA ASRS Text

Title: GA pilot reported a NMAC with a helicopter doing hover work on the runway during takeoff at CPM non-towered field.

Narrative: I waited for a helicopter to land. After it did and it was no longer visible on the runway; I announced my takeoff; taxied on the runway; and started my takeoff run. The helicopter was still at the far end of the runway; apparently practicing hovering; and had not been apparent to me. [Due to the paint color; it] disappeared in the background clutter. I climbed away to the left and it veered off to the right.Helicopters are asked not to hover taxi on the runways; but they do. When done at the far end of a 3;300-foot runway they are difficult to see against the background. In this case; I should have repeated my calls and specifically asked for verification that the helicopter was clear of the runway.

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.