GB228167A - A method of and apparatus for detecting the proximity of the ground for the use of aircraft - Google Patents

A method of and apparatus for detecting the proximity of the ground for the use of aircraft

Info

Publication number
GB228167A
GB228167A GB1814/25A GB181425A GB228167A GB 228167 A GB228167 A GB 228167A GB 1814/25 A GB1814/25 A GB 1814/25A GB 181425 A GB181425 A GB 181425A GB 228167 A GB228167 A GB 228167A
Authority
GB
United Kingdom
Prior art keywords
aircraft
circuit
earth
proximity
leroy
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
GB1814/25A
Other languages
English (en)
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.)
Leroy Lajoux & Cie Soc
Original Assignee
Leroy Lajoux & Cie Soc
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 Leroy Lajoux & Cie Soc filed Critical Leroy Lajoux & Cie Soc
Publication of GB228167A publication Critical patent/GB228167A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/023—Systems for determining distance or velocity not using reflection or reradiation using radio waves using impedance elements varying with distance

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB1814/25A 1924-01-21 1925-01-21 A method of and apparatus for detecting the proximity of the ground for the use of aircraft Expired GB228167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR589351T 1924-01-21

Publications (1)

Publication Number Publication Date
GB228167A true GB228167A (en) 1926-04-21

Family

ID=8962671

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1814/25A Expired GB228167A (en) 1924-01-21 1925-01-21 A method of and apparatus for detecting the proximity of the ground for the use of aircraft

Country Status (3)

Country Link
FR (1) FR589351A (enrdf_load_stackoverflow)
GB (1) GB228167A (enrdf_load_stackoverflow)
NL (1) NL18254C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR589351A (fr) 1925-05-28
NL18254C (enrdf_load_stackoverflow)

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