The Viscount was followed by the larger Vickers Vanguard turboprop .
A large fleet of Vickers Viscount turboprop airliners was built up from late 1954 and these were used on many intra-North American routes .
The Vickers Viscount was followed by the larger Vickers Vanguard turboprop .
A large fleet of Vickers Viscount turboprop airliners was built up from late 1954 and these were used on many intra-North American routes .