noun
Air Developing and Proving Command
Official name of a Japan Air Self-Defense Force organization responsible for flight testing and development.
航空開発実験集団は、航空自衛隊の装備品の試験を行う。
The Air Developing and Proving Command conducts tests on Japan Air Self-Defense Force equipment.
Compound of 航空 (aviation), 開発 (development), 実験 (experiment), and 集団 (group/command).