ORIGINAL: eddieC
I fly corporate, and IMO the Pitts pilot got away with some very poor decisions and actions.[

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He was, IMO, show boating and almost paid the price for it.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows.
The radio-controlled airplane operator’s decision to maneuver his airplane outside of the designated operating area, resulting in a
collision with a bi-plane. Contributing to the accident was the lack of a formally designated spotter.