FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1949
1949 - 1004.PDF
JUNE 2ND, 1949 FLIGHT Advertisements S I © © V © yi I* I II € I I II fm • • • *be illustration shows one of tk- many precision processes through which each sleeve passes before it is finally incorporated as part oj the sleeve-valve assembly of a Hercules or Centaurus engine. Exhaust and inlet ports are punched at an early stage in production, and successive grinding operations alternately on the bore and the outside diameter, reduce the sleeve too final bore sr%e of 5-75" with a sleeve wall thickness of •139*. The sleeve is finished to limits of - -•0012" on the bore, — -0012" on the outside diameter, and an ovality limit of •001*. Finishing is effected by honing and lapping. An efficient oil carrying surface is formed by subjecting the sleeve to a final operation which produces an overall satin finish ^^| • • • "Bristol"sleeve-valve reliability is inherent. BRISTOL AEROPLANE COMPANY L I M I T H D B N G L A N D
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
