Napier Eland

The Napier Eland was a British gas-turbine engine built by Napier in the early 1950s, offered as either a turboprop or a turboshaft. It first flew in 1953 in a Vickers Varsity test aircraft and later ran in the first production Airspeed Ambassador 2. Its only production applications were two variants of the Convair CV-240 family, the Canadair CC-109 Cosmopolitan and the civil Convair CV-540, and operators found it complex and unreliable. For the Fairey Rotodyne it also fed compressed air to the rotor-tip jets. Production ended in 1961 when Rolls-Royce took over the Napier company.