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No documentation for this item. It appears to be a film made by the Handley Page Aircraft Firm to demonstrate the design of the plane wings? HANDLEY PAGE MODELS In front of a wind-machine, a model aircraft of a bi-plane connected to a rod spins round against a black background. Several shots, various angles. Another single wing model aircraft has features on the wings pointed out in close-up. This plane is also shown on the rotation rig. The plane gradually stops turning. Title: “The advent of the slotted wing, however, has eliminated this danger-“ CU the wings. Title: “The same model as before at the stalling angle, but with slots“. CU model plane. “As the aeroplane assumes a steeper angle, so the slots automatically open, thus retaining the lift, which would otherwise be lost and bringing the aeroplane on an even keel.“ A model aircraft mounted directly in front of a fan. CU the wing slots moving. “'By the aid of an interceptor too', explained Mr Handley Page, 'added control is provided for
