PA-28R cherokee pilot reported an near midair collision event during takeoff roll with a nordo aircr...

Attributes
ACN	1745496
Time
Date	202006
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PA-28R Cherokee Arrow All Series
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Route In Use	Direct
Flight Plan	VFR
Aircraft 2
Make Model Name	Cessna Twin Turboprop Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Route In Use	None
Flight Plan	None
Person 1
Function	Single Pilot
Qualification	Flight Crew Instrument Flight Crew Commercial
Experience	Flight Crew Last 90 Days 25 Flight Crew Total 4600 Flight Crew Type 3500
Events
Anomaly	Conflict Ground Conflict Critical
Miss Distance	Horizontal 0 Vertical 100

Narrative:

While departing ZZZ runway xx; and after making appropriate radio announcements and visually assessing the runway condition; at approximately 50Kts and half way down the runway; an unknown twin engine cessna aircraft entered the runway at the xy end of the runway without announcement. I was forced to take evasive action and reconfigure the aircraft on the roll from a normal takeoff to a short field takeoff to avoid the other aircraft on the runway. At the time; runway xx was the active runway and wind conditions favored this runway. I was departing runway xx directly after another aircraft who departed 60 seconds before me utilizing the same runway. I had landed at ZZZ 20 minutes previously utilizing runway xx. There was no doubt that runway xx was being used by all of the landing; departing and pattern aircraft at the time. The offending pilot did not respond to radio calls from me either while on the roll (warning) or after I passed the aircraft; clearing it by 100 feet. I am not sure how to locate the pilot operator; however; he should be counseled or cited for this runway incursion.

Original NASA ASRS Text

Title: PA-28R Cherokee Pilot reported an NMAC event during takeoff roll with a nordo aircraft that initiated an opposite direction takeoff.

Narrative: While departing ZZZ Runway XX; and after making appropriate radio announcements and visually assessing the runway condition; at approximately 50Kts and half way down the runway; an unknown twin engine Cessna aircraft entered the runway at the XY end of the runway without announcement. I was forced to take evasive action and reconfigure the aircraft on the roll from a normal takeoff to a short field takeoff to avoid the other aircraft on the runway. At the time; Runway XX was the active runway and wind conditions favored this runway. I was departing Runway XX directly after another aircraft who departed 60 seconds before me utilizing the same runway. I had landed at ZZZ 20 minutes previously utilizing Runway XX. There was no doubt that Runway XX was being used by all of the landing; departing and pattern aircraft at the time. The offending pilot did not respond to radio calls from me either while on the roll (warning) or after I passed the aircraft; clearing it by 100 feet. I am not sure how to locate the pilot operator; however; he should be counseled or cited for this runway incursion.

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.

PA-28R cherokee pilot reported an near midair collision event during takeoff roll with a nordo aircraft that initiated an opposite direction takeoff.