Narrative:

From past experience, I know that one sometimes needs to be assertive in using a short lull in traffic to take the active runway and depart at our busy uncontrolled field. In this instance, I had waited in line for about 8 or 10 mins for the aircraft ahead of me to depart. By the time I was at the head of the line waiting for an opening, there were 5 aircraft in the pattern, 4 of which were practicing touch and go lndgs. A light twin was just touching down as I observed an small aircraft on its base leg. The light twin continued its rollout about halfway down the runway, as I announced: 'anoka traffic, this is (identify) taxiing into position on 17 for an immediate departure when the twin clears the active.' I observed the small aircraft beginning his turn to final as I taxied into position. The twin took his time and appeared to be rolling to the last taxiway. When I heard the small aircraft announce a go around, I recognized my screw-up in assuming that the twin would quickly clear the active. When he heard my announcement, I departed after the twin cleared west/O further incident.

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Original NASA ASRS Text

Title: SMA PLT TAXIS ONTO ACTIVE RWY AT NON TWR ARPT AND WAITS FOR SLOW MOVING TWIN TO EXIT. SECOND SMA FORCED TO GO AROUND.

Narrative: FROM PAST EXPERIENCE, I KNOW THAT ONE SOMETIMES NEEDS TO BE ASSERTIVE IN USING A SHORT LULL IN TFC TO TAKE THE ACTIVE RWY AND DEPART AT OUR BUSY UNCONTROLLED FIELD. IN THIS INSTANCE, I HAD WAITED IN LINE FOR ABOUT 8 OR 10 MINS FOR THE ACFT AHEAD OF ME TO DEPART. BY THE TIME I WAS AT THE HEAD OF THE LINE WAITING FOR AN OPENING, THERE WERE 5 ACFT IN THE PATTERN, 4 OF WHICH WERE PRACTICING TOUCH AND GO LNDGS. A LIGHT TWIN WAS JUST TOUCHING DOWN AS I OBSERVED AN SMA ON ITS BASE LEG. THE LIGHT TWIN CONTINUED ITS ROLLOUT ABOUT HALFWAY DOWN THE RWY, AS I ANNOUNCED: 'ANOKA TFC, THIS IS (IDENT) TAXIING INTO POS ON 17 FOR AN IMMEDIATE DEP WHEN THE TWIN CLRS THE ACTIVE.' I OBSERVED THE SMA BEGINNING HIS TURN TO FINAL AS I TAXIED INTO POS. THE TWIN TOOK HIS TIME AND APPEARED TO BE ROLLING TO THE LAST TXWY. WHEN I HEARD THE SMA ANNOUNCE A GAR, I RECOGNIZED MY SCREW-UP IN ASSUMING THAT THE TWIN WOULD QUICKLY CLR THE ACTIVE. WHEN HE HEARD MY ANNOUNCEMENT, I DEPARTED AFTER THE TWIN CLRED W/O FURTHER INCIDENT.

Data retrieved from NASA's ASRS site as of August 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.