Device for suspension of aircraft model in wind tunnel
Patent 4116056 Issued on September 26, 1978. Estimated Expiration Date: 
July 12, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 12, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1682138 3276251 3695101 Inventors
ApplicationNo. 05/814973 filed on 07/12/1977US Classes:73/147WIND TUNNEL: AERODYNAMIC WING AND PROPELLER STUDYExaminersPrimary: Woodiel, Donald O.Attorney, Agent or FirmInternational ClassesG01M 9/00 (20060101)G01M 9/04 (20060101) AbstractThe proposed device comprises a system of vertical and horizontal ropes fastened to an aircraft model at points located ahead and behind the model's center of gravity and secured in a wind tunnel through elastic members, which provides six degrees of freedom for the model in the throat of the wind tunnel. The system also includes a tensioning means for the horizontal ropes. The use of hoisting mechanisms connected to the elastic members of the vertical ropes makes it possible to adjust the position of the model in the throat of the wind tunnel both prior to and during experiments and thus dispense with controls to be mounted on the model. The proposed device makes it possible to simulate flight conditions for a wide variety of models within the subsonic speed range and fully eliminates what is known as suspension flutter. The invention is intended for experimental investigation of the dynamic strength and flutter characteristics of aircraft. | |
