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Aviation History
1935
1935 - 1586.PDF
36 FLIGHT. ADVERTISEMENTS. JUNE 27, 1935- RAPID WING FOLDING Lockheed equipment now in use is proving to be the most satisfactory solution to the problem of operating the spar pins of folding wings. Ordinary mechanical actuation is full of difficulties which are well known; direct manual actuation — calls for man-power acrobatics with corresponding uncertainty and risk of serious injury. The Lockheed system of hydraulic actuation—with details so perfected that the system withstands low temperatures and the drastic misuse and neglect of road vehicle users throughout the world—has been adapted to give an efficient, light and effective control which greatly diminishes the chief risks and difficulties of wing folding and spreading and saves valuable time in landing the ship on deck. The master cylinder is shown above (within the leading edge), the spar pin unit is shown below. Designers will appreciate the ' flexibility ' of a system which calls for only simple copper piping between these units. Those interested in this control, and in Lockheed controls for wing-flaps and retractile undercarriages, should write to :— AUTOMOTIVE PRODUCTS CO. LTD. BROCK HOUSE, LANGHAM ST., LONDON, W.l LOCKHEED HYDRAULIC SPAR-PIN ACTUATING GEAR Kindly mention "Flight" when corresponding with advertisers.
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