GB729675A - Aircraft landing approach system - Google Patents

Aircraft landing approach system

Info

Publication number
GB729675A
GB729675A GB609/53A GB60953A GB729675A GB 729675 A GB729675 A GB 729675A GB 609/53 A GB609/53 A GB 609/53A GB 60953 A GB60953 A GB 60953A GB 729675 A GB729675 A GB 729675A
Authority
GB
United Kingdom
Prior art keywords
altimeter
rate
height
altitude
factor
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
Application number
GB609/53A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sperry Corp
Original Assignee
Sperry Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sperry Corp filed Critical Sperry Corp
Publication of GB729675A publication Critical patent/GB729675A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

729,675. Radio navigation. SPERRY CORPORATION. Jan. 8, 1953 [Jan. 15, 1952] No. 609/53. Class 40 (7). Apparatus is provided in an aircraft to enable the pilot or auto-pilot to guide the craft immediately prior to landing so that its altitude added to a constant times its rate of change of altitude is zero, thus providing an approximately asymptotic approach to the ground. The apparatus is intended to replace a normal radio glide path system only during the final stages of landing and the normal glide path receiver 9 is connected over relay 26 to the horizontal needle of the cross-pointer meter 10 and/or the auto-pilot until the last 100 ft. or so of the descent is reached. It is preferred to use a radio altimeter 2 to give the height information and a barometric altimeter 1 which is not affected by local variations in ground level to provide the rate of change of height factor. The radio altimeter controls the application of the output of altimeter 1 to rate circuit 5 by means of monitor control 20. The height at which this occurs is set by switch 22 and the adjustor 51<SP>1</SP> on differentiating rate circuit 5 determines the constant (K) by which the dH/dt factor is multiplied before it is added to the height factor (H) in comparison circuit 6. Limiting unit 19 is inserted to limit the rate of descent by limiting the altitude factor (H). Also connected to the output of the altimeter 2 is the flare control which is adjusted by selector 27 to determine the height at which relay 26 changes over to substitute control according to the equation H+K dH/dt=0 for the 'normal glide path control signal. The altitude reference for H is chosen to be a few feet below the actual runway so that the aircraft will actually touch down. Circuit arrangements for units 1, 5, 6 and 19 are described with reference to Fig. 3 (not shown).
GB609/53A 1952-01-15 1953-01-08 Aircraft landing approach system Expired GB729675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US729675XA 1952-01-15 1952-01-15

Publications (1)

Publication Number Publication Date
GB729675A true GB729675A (en) 1955-05-11

Family

ID=22110874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB609/53A Expired GB729675A (en) 1952-01-15 1953-01-08 Aircraft landing approach system

Country Status (1)

Country Link
GB (1) GB729675A (en)

Similar Documents

Publication Publication Date Title
US3944968A (en) Aircraft ground proximity warning system having speed versus altitude compensation
US2830291A (en) Flare-out control
GB1405236A (en) Apparatus for controlling the flight of a vertical or short take- off and landing craft
SE8100889L (en) AIRLINE MARKETING DEVICE
GB1316485A (en) Landing control system for aircraft
GB1131732A (en) Improvements in and relating to automatic control systems for aircraft
US2553983A (en) Automatic flight control and approach and landing system for aircraft
GB987100A (en) Aircraft landing system
GB986137A (en) Improvements in or relating to automatic control systems
GB729675A (en) Aircraft landing approach system
GB1214672A (en) Aircraft radio-signal gain control
US3040568A (en) Aircraft landing apparatus
US3115319A (en) Flare-out system
US3262311A (en) Aircraft director system
GB1269044A (en) Improvements in or relating to aircraft control systems
GB990285A (en) Aircraft landing control apparatus
GB1026295A (en) Aircraft flight path control apparatus
GB971003A (en) Improved glide path guidance means for aircraft
US3682417A (en) Engagement of altitude hold mode in aircraft flight control system
US3624366A (en) Vertical flight path error altimeter
US2654086A (en) Safety device for instrument approach systems
GB1013869A (en) Automatic pilot effecting controlled speed followed by asymptotic approach to selected altitude
US3411132A (en) Warning apparatus for aircraft
GB1061386A (en) Aircraft navigation instrument
GB866125A (en) Improvements in or relating to warning devices for aircraft