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Aviation History
1939
1939 - 0393.PDF
FEBRUARY 16, 1939. ADVERTISEMENTS. • . -„nce economy by Lockheed! Another ma.ntenance eco r ^^.u.^ ., „eive the problems ot air UP _ .ruction and per- ANODIC TREATMENT adds years to the corrosive resistance of magnesium alloy and aluminum air plane parts. Anodization of aluminum alloys is a strict requirement of the XL S. Army and Navy. So important is this process that Lockheed has ex panded its anodization facilities to accommodate all assemblies on every class of Lockheed airplanes. This is just one of many technical advances em ployed by Lockheed to increase the durability and efficiency of airline equipment and reduce operat ing and maintenance costs. Such progressive advancement in both design and production is based on constant research into the problems of air transportation. It is evidenced in every phase of Lockheed construction and per formance ... from the economical accessibility of control units to the increased revenue miles per operating dollar. Lockheed invites your inspection of its unsur passed record of economical performance in the service of 28 airlines throughout the world. Com piled data applicable to the particular use of any Lockheed model will be furnished upon request. • Anodization is an electro-chemical oxidation of the surface of a metal which produces an oxide film highly resistant to corrosion.
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