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Aviation History
1960
1960 - 2273.PDF
7 OCTOBER 1960 FLIGHT PROTECTION from erosion and damage by electroformed micrograined nickel D. NAPIER & SON LTD. in their Spray mat informa-tion bulletin 1B/S11 say "We consider that having taken into account the aircraft forward speed the out-board section of the blade should be protected by a metallic coating. Extensive testing has indicated thatthe best coating for this purpose is an electroformed Micrograin nickel sheath bonded onto the heater mat." HARDNESS Variable with control between 450-700 Vickers Pyramid Number RESISTANCE TO EROSION BY WATER Tests on tubular forms show no apparent effect on the surface of the nickel under conditions of a supposed component flying at extremely high speeds through rain of tropical intensity. RESISTANCE TO DAMAGE AND DEFORMATION Tests show propeller edge electroforms to be highly resistant to damage and deformation by dust and stones PROCESSES LIMITED 41-43/47 GATWICK RD., CRAWLEY, SUSSEX TELEPHONE: CRAWLEY 25241/5 ORCHARD & IND LIMITED TECHNICAL PRINTERS TO THE AIRCRAFT INDUSTRY Our Services Provide # Letterpress and Lithography # A special composing process for technical manuals showing a 50% reduction in price on comparable letterpress # Binder manufacture, including a patented style for ATA 100 # Expert and rapid collation of pages, including customers' own matter # Advice and assistance to clients at every stage of technical printing ORCHARD & IND LIMITED • NORTHGATE • GLOUCESTER • Tel: 23091 (3 lines)
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