Narrative:

I was ready to take off on runway 15 at fnl. Winds were from the south at 10 KTS. I checked for landing aircraft on base and final. After ascertaining that the airspace was clear, I announced that I was taking off on runway 15 over CTAF. About 10 seconds later, another pilot (aircraft #2) announced over CTAF that he was going around. I had not yet entered the runway proper, but had crossed the hold short line. Another airplane behind me had already taxied up to the hold short line, so I could not turn around. Aircraft #2 had evidently turned base nearly overhead, based upon its position when I saw it. The pilot had intended to land long, and did not extend his downwind past the approach end of runway 15. (Note: the logical exit for full stop traffic on runway 15 is 4500 ft past the threshold, so long lndgs at fnl are common.) I did not look directly overhead when clearing the airspace because I expected all landing traffic to extend past the runway end at least 1/4 mi as per the aim. Personally, I believe base legs should be about 1/2 mi from the threshold. Even 1/4 mi is pretty close.

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Original NASA ASRS Text

Title: A C182 CFI CAUSES ANOTHER ACFT ON SHORT FINAL TO GO AROUND WHEN HE CROSSES THE HOLD SHORT LINE AT A NON TWR ARPT AT FNL, CO.

Narrative: I WAS READY TO TAKE OFF ON RWY 15 AT FNL. WINDS WERE FROM THE S AT 10 KTS. I CHKED FOR LNDG ACFT ON BASE AND FINAL. AFTER ASCERTAINING THAT THE AIRSPACE WAS CLR, I ANNOUNCED THAT I WAS TAKING OFF ON RWY 15 OVER CTAF. ABOUT 10 SECONDS LATER, ANOTHER PLT (ACFT #2) ANNOUNCED OVER CTAF THAT HE WAS GOING AROUND. I HAD NOT YET ENTERED THE RWY PROPER, BUT HAD CROSSED THE HOLD SHORT LINE. ANOTHER AIRPLANE BEHIND ME HAD ALREADY TAXIED UP TO THE HOLD SHORT LINE, SO I COULD NOT TURN AROUND. ACFT #2 HAD EVIDENTLY TURNED BASE NEARLY OVERHEAD, BASED UPON ITS POS WHEN I SAW IT. THE PLT HAD INTENDED TO LAND LONG, AND DID NOT EXTEND HIS DOWNWIND PAST THE APCH END OF RWY 15. (NOTE: THE LOGICAL EXIT FOR FULL STOP TFC ON RWY 15 IS 4500 FT PAST THE THRESHOLD, SO LONG LNDGS AT FNL ARE COMMON.) I DID NOT LOOK DIRECTLY OVERHEAD WHEN CLRING THE AIRSPACE BECAUSE I EXPECTED ALL LNDG TFC TO EXTEND PAST THE RWY END AT LEAST 1/4 MI AS PER THE AIM. PERSONALLY, I BELIEVE BASE LEGS SHOULD BE ABOUT 1/2 MI FROM THE THRESHOLD. EVEN 1/4 MI IS PRETTY CLOSE.

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.