Narrative:

Our aircraft was position and hold for IFR release on runway 18 at dec then cleared for takeoff. At approximately 100-200 ft AGL, I saw a military aircraft wheels up and level flight coming from right to left along runway 06, at about 300-400 ft altitude. I believe the tower did not know he was there and there must have been a mix up with a clearance or approach clearance between champaign approach and an aircraft I believe to be called military identification. I abruptly leveled off the aircraft and passed behind and under him.

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Original NASA ASRS Text

Title: CLOSE PROX COMMUTER LTT JUST OFF THE GND AND MIL UNK 150 FT HIGHER FLYING ALONG A XING RWY.

Narrative: OUR ACFT WAS POS AND HOLD FOR IFR RELEASE ON RWY 18 AT DEC THEN CLRED FOR TKOF. AT APPROX 100-200 FT AGL, I SAW A MIL ACFT WHEELS UP AND LEVEL FLT COMING FROM R TO L ALONG RWY 06, AT ABOUT 300-400 FT ALT. I BELIEVE THE TWR DID NOT KNOW HE WAS THERE AND THERE MUST HAVE BEEN A MIX UP WITH A CLRNC OR APCH CLRNC BTWN CHAMPAIGN APCH AND AN ACFT I BELIEVE TO BE CALLED MIL ID. I ABRUPTLY LEVELED OFF THE ACFT AND PASSED BEHIND AND UNDER HIM.

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.