Duke of Westminster (Grosvenor)
Noted the list of the DoW aircraft and it does not mention this company Grosvenor Aviation Services at Manchester Ringway, was this another of his companies ?
If so can add:-
G-POLO Piper PA-31 Navajo Chieftain 350
G-OCAL Partenavia P.68B
G-OGRV Piper PA-31 Navajo Chieftain 350
Helipixman