Cessna 150
Flight Crew Commercial; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 500; Flight Crew Total 1320; Flight Crew Type 700
Communication Breakdown
Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Incursion Runway
Flight Crew Rejected Takeoff; Flight Crew Took Evasive Action
Airport; Human Factors; Procedure
I was departing ZZZ in my C150. Two other aircraft were in the pattern; one full stop another light twin Seminole full stop taxi backs. I completed my run up and waited for the first of the two aircraft to land; while I was stopped on the taxiway holding short of Runway XX with view of standard final and base approach courses. While I was still holding short an aircraft with a weak radio asked for airport advisories to which the Seminole advised Runway XX was in use; followed by no further radio contact by that aircraft; other than asking for more airport advisories. The Seminole; next in the pattern; proceeded to go missed and upon his crosswind turn I announced; cleared both final and base legs in a standard pattern and took the runway. I began my takeoff roll and upon reaching just short of rotation speed a broken barely readable radio announces 'Stearman final'. Moments after announcing the Stearman goes by low off my right wing and turns crosswind across my nose and proceeds to turn downwind in front of the Seminole whole had to modify his pattern to accommodate the Stearman. I rejected my takeoff at rotation and proceeded off the runway. I believe that factors leading to this incident include improper radio communication and improper flight in the traffic pattern on part of the Stearman.
C150 Pilot reported a critical ground conflict as Stearman overflew the C150 on takeoff roll.