Design and Development
The DH.18 was designed and built in 1919 by Airco as their first aircraft specifically for commercial work, earlier aircraft such as the DH.16 being modified military types. The DH.18 was a single-engined biplane, powered by a Napier Lion engine with wooden two bay, wire braced wings, and a forward fuselage clad in plywood. It accommodated eight passengers in an enclosed cabin with the pilot in an open cockpit behind the cabin. The first prototype flew early in 1920.
Read more about this topic: De Havilland DH.18
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