GB687682A - A combined trim and balance tab, intended especially for aircraft - Google Patents
A combined trim and balance tab, intended especially for aircraftInfo
- Publication number
- GB687682A GB687682A GB37/51A GB3751A GB687682A GB 687682 A GB687682 A GB 687682A GB 37/51 A GB37/51 A GB 37/51A GB 3751 A GB3751 A GB 3751A GB 687682 A GB687682 A GB 687682A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rudder
- lever
- axis
- tab
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Control Devices (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
687,682. Tabs for control surfaces. SVENSKA AEROPLAN AKTIEBOLAGET. Jan. 1, 1951. [Jan. 4, 1950] No. 37/51. Class 4. A combined balance and trim tub 4, shown applied to a rudder 1 rotating about the axis 3 is actuated by a mechanism comprising an arm 18 pivotally supported at one end 19 by the rudder, the pivot 19 being to one side of the axis 3, a two-armed lever 20 pivotally connected to the other end 21 of the arm 18 disposed on the opposite side of the axis 3, a trim-adjustment rod 29 connected at one end to the end 27 of the lever 20 on the same side of the axis 3 as the pivot 19, a push-pull rod 23 connecting the other end 22 of the lever 20 with the tab 4, a second lever 11 rotatable about the axis 3 and connected to the rudder pedals 14, a pre-loaded two way action spring unit 15 connected between the lever 11 and rudder 1, and a torsion tube 33 connected by rods 37, 38 with the end 21 of the arm 18 and the lever 11 respectively With small rudder deflections, such that the member 15 operates as a rigid link, there is no relative movement between the lever 11 and rudder 1, the tab 4 is moved to the position shown by dotted lines in Fig. 3, giving an "anti-servo" action. Further effort applied to the pedal 14 results in variation of the length of the member 15 and the tab 4 is moved in the opposite direction relatively to the rudder, to give servo-operation of the latter. The trimadjustment rod 29 is actuated by a pulley 31 and cab!e 32, the former engaging a screwthreaded member 28 connected to the rod 29.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE687682X | 1950-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB687682A true GB687682A (en) | 1953-02-18 |
Family
ID=20315096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37/51A Expired GB687682A (en) | 1950-01-04 | 1951-01-01 | A combined trim and balance tab, intended especially for aircraft |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB687682A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4175721A (en) * | 1977-06-30 | 1979-11-27 | Lempa Bernard J Jr | Trim tab control mechanism |
| CN109515737A (en) * | 2018-03-16 | 2019-03-26 | 陕西飞机工业（集团）有限公司 | A kind of plane airfoil balancing device |
| CN113277117A (en) * | 2021-04-27 | 2021-08-20 | 芜湖中科飞机制造有限公司 | Vertical fin deflection torque testing device for airplane machining |
-
1951
- 1951-01-01 GB GB37/51A patent/GB687682A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4175721A (en) * | 1977-06-30 | 1979-11-27 | Lempa Bernard J Jr | Trim tab control mechanism |
| CN109515737A (en) * | 2018-03-16 | 2019-03-26 | 陕西飞机工业（集团）有限公司 | A kind of plane airfoil balancing device |
| CN113277117A (en) * | 2021-04-27 | 2021-08-20 | 芜湖中科飞机制造有限公司 | Vertical fin deflection torque testing device for airplane machining |
| CN113277117B (en) * | 2021-04-27 | 2022-08-12 | 芜湖中科飞机制造有限公司 | Vertical fin deflection torque testing device for airplane machining |
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