Narrative:

Upon returning to the airport from the south, I entered a left downwind at 6200' for runway 11. Ahead of me was another aircraft which was on a left base for runway 11. At the approach end of runway 11 and in the runup area was a red small aircraft. When I was established on final and less than 1/2 mi from the end of the runway, the red small aircraft taxied onto the runway and started his takeoff roll. I made a slight turn to the right and added power. Once speed and altitude permitted, I made a left turn which took me over the runway slightly ahead of the departing red small aircraft. I then reentered a left downwind and later landed west/O further trouble. I feel there are two factors which contributed to this incident. The aircraft I was flying was a small homebuilt with no radio or electrical system, and the pilot of the small aircraft did not look to see if there was anyone on final approach when he taxied onto the active runway. My suggestion is, don't assume nobody else is in the area just because you don't hear anything on the radio, see and be seen.

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Original NASA ASRS Text

Title: EXPERIMENTAL ACFT ON APCH WITHOUT RADIO HAS CLOSE PROX WITH SMA WHICH PULLS ONTO RWY AND DEPARTS.

Narrative: UPON RETURNING TO THE ARPT FROM THE S, I ENTERED A L DOWNWIND AT 6200' FOR RWY 11. AHEAD OF ME WAS ANOTHER ACFT WHICH WAS ON A L BASE FOR RWY 11. AT THE APCH END OF RWY 11 AND IN THE RUNUP AREA WAS A RED SMA. WHEN I WAS ESTABLISHED ON FINAL AND LESS THAN 1/2 MI FROM THE END OF THE RWY, THE RED SMA TAXIED ONTO THE RWY AND STARTED HIS TKOF ROLL. I MADE A SLIGHT TURN TO THE R AND ADDED PWR. ONCE SPD AND ALT PERMITTED, I MADE A L TURN WHICH TOOK ME OVER THE RWY SLIGHTLY AHEAD OF THE DEPARTING RED SMA. I THEN REENTERED A L DOWNWIND AND LATER LANDED W/O FURTHER TROUBLE. I FEEL THERE ARE TWO FACTORS WHICH CONTRIBUTED TO THIS INCIDENT. THE ACFT I WAS FLYING WAS A SMALL HOMEBUILT WITH NO RADIO OR ELECTRICAL SYS, AND THE PLT OF THE SMA DID NOT LOOK TO SEE IF THERE WAS ANYONE ON FINAL APCH WHEN HE TAXIED ONTO THE ACTIVE RWY. MY SUGGESTION IS, DON'T ASSUME NOBODY ELSE IS IN THE AREA JUST BECAUSE YOU DON'T HEAR ANYTHING ON THE RADIO, SEE AND BE SEEN.

Data retrieved from NASA's ASRS site as of July 2007 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.