Narrative:

Was told by tower to extend downwind for traffic and they would call my base. Tower cleared me to turn base. As I rolled out on base an F15 was also cleared base on UHF frequency. Both aircraft had to maneuver to avoid collision. More space should be allotted for pattern work between aircraft.

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Original NASA ASRS Text

Title: TWR TOLD RPTR TO EXTEND DOWNWIND FOR TFC. TWR WOULD CALL BASE. TWR TOLD RPTR TO TURN BASE. AS THE RPTR ROLLED OUT ON BASE AN F15 ON UHF WAS ALSO TOLD TO TURN BASE. BOTH ACFT HAD TO MANEUVER TO AVOID A COLLISION.

Narrative: WAS TOLD BY TWR TO EXTEND DOWNWIND FOR TFC AND THEY WOULD CALL MY BASE. TWR CLRED ME TO TURN BASE. AS I ROLLED OUT ON BASE AN F15 WAS ALSO CLRED BASE ON UHF FREQ. BOTH ACFT HAD TO MANEUVER TO AVOID COLLISION. MORE SPACE SHOULD BE ALLOTTED FOR PATTERN WORK BTWN ACFT.

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.