Vickers Vanguard
The Vickers Vanguard is a short/medium-range turboprop airliner designed and produced by the British aircraft manufacturer Vickers-Armstrongs. The Vanguard was developed during the mid-to-late 1950s in response to a specification issued by British European Airways (BEA) for a 100-seat airliner; Vickers decided to design such an airliner as a follow-up to the existing Viscount series, the principal difference from which being an expanded airframe that provided considerably more internal volume.