Large passenger aircraft typically require over a million fasteners, almost all of which are made of titanium.  In order to prevent bi-metallic reaction between the titanium and the aluminium used to build the aircraft, the fasteners have to be coated with aluminium, using ion vapour deposition (IVD). 

The two Batchmaster cabinets installed by Hodge Clemco enable Acorn ST to meet growing demand from major civil and military aircraft manufacturers as the number they build continues to increase.