GB866125A - Improvements in or relating to warning devices for aircraft - Google Patents
Improvements in or relating to warning devices for aircraftInfo
- Publication number
- GB866125A GB866125A GB22803/58A GB2280358A GB866125A GB 866125 A GB866125 A GB 866125A GB 22803/58 A GB22803/58 A GB 22803/58A GB 2280358 A GB2280358 A GB 2280358A GB 866125 A GB866125 A GB 866125A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aircraft
- glide path
- output
- multivibrator
- warning
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/04—Control of altitude or depth
- G05D1/06—Rate of change of altitude or depth
- G05D1/0607—Rate of change of altitude or depth specially adapted for aircraft
- G05D1/0653—Rate of change of altitude or depth specially adapted for aircraft during a phase of take-off or landing
- G05D1/0676—Rate of change of altitude or depth specially adapted for aircraft during a phase of take-off or landing specially adapted for landing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Abstract
866,125. Radio navigation. MINISTER OF AVIATION. Oct. 13, 1959 [July 16, 1958], No. 22803/58. Class 40(7) A lightweight transistorized supplementary warning device connected across the input to the glide path indicator of the instrument landing system (I.L.S.) of an aircraft provides an aural and/or visual warning signal when the aircraft is flying below the normal glide path. As shown the D.C. voltage across the input to the normal glide path pointer indicator is amplified by a pair of transistors 4, 5 and applied as a switching signal across one diagonal of a germanium diode bridge, the output from an audio frequency transistor multivibrator 16 being applied across the other diagonal such that when the amplitude of the switching voltage exceeds a value corresponding to the maximum safe displacement of the aircraft below the glide path, the bridge 11 becomes conductive and applies the output from the multivibrator 16 to a transistor audio amplifier 24 whose output is coupled by a transformer 27 to the aircraft inter-communication system to provide an aural warning. A visual warning is provided by applying an output from the amplifier 24 through a further transistor amplifier 28, 29 to energize a relay 30 thereby closing contacts 31 to light a lamp 34 which is connected in parallel with one coil 33 of two relays B and C which are so interconnected to cause the lamp 34 to flash on and off. The flashing lamp circuit may be tested by means of a push button 39. The multivibrator 16 may also be controlled to produce a warbling tone or a note which varies in pitch with the displacement of the aircraft below the glide path. The warning device may be switched on at the commencement of final approach by the lowering of the undercarriage or flap or by the signal from the middle marker
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22803/58A GB866125A (en) | 1958-07-16 | 1958-07-16 | Improvements in or relating to warning devices for aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22803/58A GB866125A (en) | 1958-07-16 | 1958-07-16 | Improvements in or relating to warning devices for aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB866125A true GB866125A (en) | 1961-04-26 |
Family
ID=10185310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22803/58A Expired GB866125A (en) | 1958-07-16 | 1958-07-16 | Improvements in or relating to warning devices for aircraft |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB866125A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2306429A1 (en) * | 1975-04-02 | 1976-10-29 | Sunostrand Data Control Inc | AIRCRAFT APPROACH TO GROUND WARNING DEVICE |
| DE2527056C3 (en) | 1974-06-19 | 1979-10-11 | Sundstrand Data Control, Inc., Redmond, Wash. (V.St.A.) | Ground proximity warning device for aircraft pilots |
-
1958
- 1958-07-16 GB GB22803/58A patent/GB866125A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2527056C3 (en) | 1974-06-19 | 1979-10-11 | Sundstrand Data Control, Inc., Redmond, Wash. (V.St.A.) | Ground proximity warning device for aircraft pilots |
| DE2559952C3 (en) * | 1974-06-19 | 1981-07-02 | Sundstrand Data Control, Inc., Redmond, Wash. | Warning device close to the ground for aircraft pilots on approach with a turn at low altitude |
| FR2306429A1 (en) * | 1975-04-02 | 1976-10-29 | Sunostrand Data Control Inc | AIRCRAFT APPROACH TO GROUND WARNING DEVICE |
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