GB560019A - Indicating instruments for aircraft - Google Patents
Indicating instruments for aircraftInfo
- Publication number
- GB560019A GB560019A GB12798/41A GB1279841A GB560019A GB 560019 A GB560019 A GB 560019A GB 12798/41 A GB12798/41 A GB 12798/41A GB 1279841 A GB1279841 A GB 1279841A GB 560019 A GB560019 A GB 560019A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ports
- duct
- degrees
- aircraft
- port
- 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
- 239000011888 foil Substances 0.000 abstract 2
- 238000005485 electric heating Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D43/00—Arrangements or adaptations of instruments
- B64D43/02—Arrangements or adaptations of instruments for indicating aircraft speed or stalling conditions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
- G01P13/025—Indicating direction only, e.g. by weather vane indicating air data, i.e. flight variables of an aircraft, e.g. angle of attack, side slip, shear, yaw
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
- G01P5/16—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes, e.g. Machmeter
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
560,019. Pressure gauges. JOHNSON, C. L. Oct. 3, 1941, No. 12798. Convention date, Sept. 13, 1940. [Class 106 (ii)] [Also in Group XXIX] Relates to angle of attack indicators for aircraft and comprises air foil means having two ports with their axes at a vertical angle with each other, measuring devices responsive to air pressures at said ports, a device for indicating angle of attack, and means for combining the movements of said measuring devices to cause said indicating device to operate in response to the ratio of the air pressures applied at said ports. The axis of one port is preferably parallel to the thrust axis of the aircraft, and the angle between the ports is between 25 degrees and 65 degrees; preferably 45 degrees; the ports may be in the leading edge of the main wing of the aircraft, but are preferably inseparate air foils, one of which is the usual' Pitot-static tube. In Fig. 3, the air pressures at; the ports act through ducts 19, 22, on diaphragms 25, 41, restrained by leaf springs 26, 42, and adjustable stops 27,. 43, so that their movements are proportional to the logarithms of the pressures. The diaphragm 25 rocks a bell crank lever 30 carrying a pivotedstrip 32 engaged on one side by an adjustable stop 46 on a bell crank lever 39 rocked by the diaphragm 41, and on the other side by a lever 33 connected through, gearing 35,. 36 to an indicating pointer 24 constrained by a spring 39<1>. When the shape of the part containing the inclined port, or the inclination of such port, results in negative pressures in the duct 22, the diaphragm 25 is mounted so as to act on the bell crank lever 30 in the opposite direction. A pressure head for connection to duct 22 may comprise a body 47, Figs. 5 and 6, with a mounting fin 48 at the rear and two parts 49, 50, inclined preferably at 45 degrees to the axis of the head. A further form of pressure head comprises a body 47<1>, Fig. 9, with inclined ports 49<1> leading to duct 22, a dynamic pressure port 51 communicating with duct 19, and electric heating means 52.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US560019XA | 1940-09-13 | 1940-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB560019A true GB560019A (en) | 1944-03-16 |
Family
ID=22001510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12798/41A Expired GB560019A (en) | 1940-09-13 | 1941-10-03 | Indicating instruments for aircraft |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB560019A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1274354B (en) * | 1962-05-02 | 1968-08-01 | Monitair Corp | Device for measuring the angle of attack of an aircraft wing |
| EP0632273A1 (en) * | 1993-06-30 | 1995-01-04 | Rosemount Inc. | Three axis air data system for air vehicles |
| CN107036782A (en) * | 2015-09-15 | 2017-08-11 | 空中客车简化股份公司 | For measuring the device along the air flow of wall |
| US11579163B1 (en) | 2021-07-29 | 2023-02-14 | Rockwell Collins, Inc. | Differential pressure angle of attack sensor |
-
1941
- 1941-10-03 GB GB12798/41A patent/GB560019A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1274354B (en) * | 1962-05-02 | 1968-08-01 | Monitair Corp | Device for measuring the angle of attack of an aircraft wing |
| EP0632273A1 (en) * | 1993-06-30 | 1995-01-04 | Rosemount Inc. | Three axis air data system for air vehicles |
| CN107036782A (en) * | 2015-09-15 | 2017-08-11 | 空中客车简化股份公司 | For measuring the device along the air flow of wall |
| US11579163B1 (en) | 2021-07-29 | 2023-02-14 | Rockwell Collins, Inc. | Differential pressure angle of attack sensor |
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