AFTER CAREFULLY ANNOUNCING THEIR INTENTIONS ON CTAF; FLT CREW OF WW25 ABORT TKOF FROM LUK WHEN THEY OBSERVE C210 DEPARTING OPPOSITE DIRECTION ON SAME RWY. C210 PLT HAD MADE NO XMISSIONS ON CTAF.

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TAXI OUT FROM FBO AT LUK AT XA50 LCL; IN DARKNESS. LUK TWR OPENS AT XB00 LCL. SEEING AS TWR WAS CLOSED; WE MADE CALLS ON CTAF; 118.7; LEAVING RAMP; ON TXWY A; AND APCHING THE HOLD SHORT FOR RWY 21L; ADVISING OF OUR POS AND INTENTIONS. WE ALSO ASKED ANY OTHER TFC AT LUK TO SAY THEIR INTENTIONS. NO OTHER TFC WAS OBSERVED ON CTAF. FRESH ATIS AT XA50 WITH WINDS CALM; 10 SM VISIBILITY; 1400 FT OVCST. BECAUSE TWR WAS CLOSED; WE RECEIVED OUR IFR CLRNC FROM CVG DEP CTL WITH A HOLD/CALL FOR RELEASE. EXTREME VIGILANCE WAS USED WHILE TAXIING TO RWY 21L; DUE TO UNCTLED FIELD AND WE SWITCHED ON ALL OUR EXTERIOR LIGHTS AND STROBES WELL BEFORE REACHING RWY 21L. NO OTHER TFC WAS OBSERVED. AT THE HOLD SHORT AREA FOR RWY 21L WE STILL MONITORED CTAF AND RECEIVED OUR RELEASE FROM ATC ON THE OTHER RADIO. BEFORE XING HOLD SHORT LINE; WE ANNOUNCED OUR POS AND INTENTIONS ON CTAF AND THEN POSITIONED ONTO RWY 21L. RWY LOOKED CLR AND WITH ALL CHKLISTS COMPLETE; WE ADVANCED THE PWR FOR TKOF. AT THAT MOMENT THE LNDG LIGHTS OF ANOTHER ACFT SUDDENLY APPEARED; TAKING OFF DIRECTLY OPPOSITE US ON RWY 3R. WE BOTH NOTICED THIS AT THE SAME TIME AND YELLED 'ABORT; ACFT ON THE RWY.' WE SLOWED QUICKLY FROM ABOUT 50 KIAS AND THE OTHER ACFT IMMEDIATELY TURNED OFF THE RWY. AT THAT MOMENT; TWR OPENED AND ALSO CLRED US TO BACK TAXI AND POS AND HOLD RWY 21L. TWR ALSO QUESTIONED THE OTHER ACFT (CESSNA 210) AND ASKED HIM WHAT THE HELL HE WAS DOING AND WHERE WERE HIS RADIO CALLS. HE WAS ALSO QUIZZED AS TO WHETHER HE HAD HEARD ANY OF OUR CTAF CALLS. AFTER BRIEFING THE PAX AND COMPLETING THE APPROPRIATE CHKLISTS WE WERE CLRED FOR AN UNEVENTFUL TKOF ON RWY 21L. THE CESSNA 210 PLT USED EXTREMELY POOR JUDGEMENT IN AT LEAST 3 AREAS: 1) NO XMISSIONS OR LISTENING WATCH ON CTAF. 2) HE HAD ATTEMPTED TO GET HIS CLRNC FROM CVG DEP; JUST LIKE WE DID; BUT HE WAS TOLD TO HOLD AND WAS NOT RELEASED. 3) HE WAS THEN ATTEMPTING TO TKOF VFR INTO A 1400 FT OVCST AND PRESUMABLY HOPING TO PICK UP HIS IFR CLRNC AIRBORNE.