Light Sport Aircraft
Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 25.4; Flight Crew Total 5700; Flight Crew Type 30.1
Other / Unknown
Conflict NMAC; Conflict Ground Conflict; Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Human Factors
Without communicating on CTAF; Cessna cut off Thorp on taxiway to get on runway behind the Debonair the Thorp had been following; and departed with numerous aircraft in pattern. Thorp pulled out on runway; and began takeoff run approximately 150 FT behind Cessna. Thorp overran Cessna on climb-out; and had to side-step to the right to remain clear (Left hand pattern). The judgment of the Thorp pilot was in error believing the Cessna was the faster airplane. Also; if the Cessna had been making an aborted takeoff (without announcement on CTAF) the Thorp pilot would have been forced into a critical avoidance scenario. In the future; the Thorp pilot will definitely wait until the preceding airplane has established a definite climb pattern and is departing the area.
Light Sport Aircraft (LSA) pilot reports being cut off on the taxiway by a C150; which proceeds to takeoff without communicating on CTAF. The LSA pilot proceeds to takeoff also 150 feet behind the C150 and discovers that his aircraft is faster than the C150 requiring evasive action.