My dear Jemiba,
the Cierva W-11T was enlarge version of W-11 with two 1620 hp Rolls-Royce
Merlin 502 engines,and W-12 project was to be fitted with Rolls-Royce Dart
turboprops .
cierva autogiro company
cold war
cunliffe-owen aircraft ltd
great britain
ministry of supply
royal aircraft establishment
saunders-roe
specification 10/48
specificatione.19/46
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