helicopter by Leonardo
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The AgustaWestland AW139 is a Italian and British helicopter. It's used both by militaries and civilians. It's a twin turboshaft helicopter. Similars helicopters are Eurocopter EC175 and Sikorsky S-70.
- Jackson, Robert, Helicopters: Military, Civilian, and Rescue Rotorcraft (The Aviation Factfile). London: Grange Books Ltd, 2005. ISBN 1-84013-812-2.