Narrative:

I taxied into position and held on runway 5 in ded. I made a verbal announcement that I was going to taxi into position and hold on the 123.075 unicom frequency. After the aircraft that landed at the end of the runway cleared; I made a final call that I would be departing runway 5. I started my takeoff roll and reached about 60 knots in the first 300 - 400 feet of the runway. I was not even to the first intersection of the runway. After my roll and airspeed had been achieved I noticed [another aircraft] taxiing out onto the runway in front of me. I had no choice but to continue ahead and hope that I could fly before I got to the aircraft. I yelled over the radio stop stop stop stop stop! The aircraft continued ahead; and luckily I rotated my aircraft and veered left in flight and cleared the aircraft hazard in front of me. I believe that I may have used some foul language on the radio during the incident and after the other pilot; a flight instructor with broken english; denied [they] ever heard my takeoff roll call. We got into a verbal argument and some foul words were exchanged leading to the fact that [they] almost killed all of us.the situation was a very close call and the congestion on the radio of several flight training aircraft all fighting for clear airtime to talk seemed to add to the problem with communications. However; radio or no radio; [they] failed to clear left and right before taxiing out onto an active runway environment. [They] clearly did not use good judgement nor display good piloting skills to [their] student either! I do not feel I violated any regulations during the incident other than the use of profanity on the radio. But I could not control what flew out of my mouth in a near catastrophic situation which was totally avoidable. The lack of attention by the pilot who entered the runway could have caused all of us to be killed. Had I been in another aircraft with less horsepower and/or performance this would have likely been a collision on the ground between two aircraft.

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Original NASA ASRS Text

Title: General aviation aircraft pilot reported a near collision while taking off at a non-towered airport.

Narrative: I taxied into position and held on Runway 5 in DED. I made a verbal announcement that I was going to taxi into position and hold on the 123.075 UNICOM frequency. After the aircraft that landed at the end of the runway cleared; I made a final call that I would be departing Runway 5. I started my takeoff roll and reached about 60 knots in the first 300 - 400 feet of the runway. I was not even to the first intersection of the runway. After my roll and airspeed had been achieved I noticed [another aircraft] taxiing out onto the runway in front of me. I had no choice but to continue ahead and hope that I could fly before I got to the aircraft. I yelled over the radio STOP STOP STOP STOP STOP! The aircraft continued ahead; and luckily I rotated my aircraft and veered left in flight and cleared the aircraft hazard in front of me. I believe that I may have used some foul language on the radio during the incident and after the other pilot; a flight instructor with broken English; denied [they] ever heard my takeoff roll call. We got into a verbal argument and some foul words were exchanged leading to the fact that [they] almost killed all of us.The situation was a very close call and the congestion on the radio of several flight training aircraft all fighting for clear airtime to talk seemed to add to the problem with communications. However; radio or no radio; [they] failed to clear left and right before taxiing out onto an active runway environment. [They] clearly did not use good judgement nor display good piloting skills to [their] student either! I do not feel I violated any regulations during the incident other than the use of profanity on the radio. But I could not control what flew out of my mouth in a near catastrophic situation which was totally avoidable. The lack of attention by the pilot who entered the runway could have caused all of us to be killed. Had I been in another aircraft with less horsepower and/or performance this would have likely been a collision on the ground between two aircraft.

Data retrieved from NASA's ASRS site 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.