Airscrew hubs and their fixings. Engine flange fixings.
NORM herausgegeben am 30.3.1931
Designation standards: BS 87-2:1931
Note: UNGÜLTIG
Publication date standards: 30.3.1931
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technische Normen BS