page_title: Radioplane BTT
hierarchical_section_title: Radioplane BTT
caption_attribution_description: English: basic training target drone
context_page_description: The Radioplane BTT, known as RP-71 by the company, as WS-426/2 by the United States Navy, and as WS-462/2 by the US Air Force, is a family of target drones produced by the Radioplane Company.
context_section_description: The Radioplane BTT, known as RP-71 by the company, as WS-426/2 by the United States Navy, and as WS-462/2 by the US Air Force, is a family of target drones produced by the Radioplane Company (later a division of Northrop).
caption: BTT Northrop Grumman Drone, on display at Aviation Unmanned Vehicle Museum in Dallas, TX
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