Accession Number : AD0697560

Title :   RETRACTABLE AIRPLANE LANDING GEAR,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Lucien,Rene

Report Date : 06 MAY 1969

Pagination or Media Count : 7

Abstract : A description is given of a rectractable aircraft landing gear consisting of two wheels located one behind the other, a shock absorber (used for both wheels, placed parallel to the longitudinal axis of the fuselage, and having two rods coming out the ends of the shock absorber housing), and two levers for the suspension of these wheels, each of which is hinged at its center or fastened to an eye on the shock absorber housing. To assure retraction and lowering the shock absorber is articulately connected to the fuselage by the use of two eyes located on the ends of the shock absorber housing. The mechanism for lowering and retracting the landing gear is made in the form of a plane articulated parallelogram located in a plane parallel to the longitudinal axis of the fuselage and formed by two breaking struts, each of which is articulately fastened at one end to the fuselage and at the other to the housing of the shock absorber. A crosspiece connects the center hinges of these struts and contains a telescoping lift located outside the parallelogram in its plane. The housing of the lift is connected with the fuselage and the rod is articulately connected to the fuselage by an arm of the breaking strut nearest this lift. In the retracted and lowered position the retractable landing gear can be spring-loaded in the direction corresponding to the turn axis of the landing gear, the moment of which is produced by means of a telescoping spring-loaded mechanism articulately connected on one end to the fuselage. (Author)

Descriptors :   (*LANDING GEAR, PATENTS), EXTENDABLE STRUCTURES, DESIGN, USSR

Subject Categories : Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE