The time for BOAC to invent a marketing class name (like Argonaut for DC-4M, Hythe for ex-Sunderland) would have been shortly before late-64 Standard VC10 inaugural Service. But by then passengers had become used to jet designations by type, not name (707/DC-8/CV880). RAF first delivery was 7/66, by when its identity was settled. I expect the reason that Vickers, then BAC did not produce one, was linked to (17/3) Jhieminga's Old Account/New Account point about profit/loss ownership. Later a dubble-bubble scheme was called Superb precisely to admit it as a common BAC project.