Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,754 pages of information and 232,400 images on early companies, their products and the people who designed and built them.
Production ended when the Napier aero engine was acquired by Rolls-Royce Limited in 1961.
The Eland powered various other aircraft, including the Westland Westminster helicopter, and the Canadair CL-66. It also powered two versions of the Convair CV-240 family of aircraft (the CV-540 and CC-109 Cosmopolitan).
The Fairey Rotodyne had two Eland turboshaft engines, each rated at 2800 SHP. These drove controllable pitch propellors in forward flight. To drive the rotors for vertical take-off and landing, each engine drove a compressor via a clutch (fluid coupling), and each compressor supplied air to one pair of blade tip jets.
For more information, see Wikipedia entry.