FR2256396A1 - Point-to-point aircraft navigation rulers - having scales corresponding to map, aircraft speed and time relationship - Google Patents

Point-to-point aircraft navigation rulers - having scales corresponding to map, aircraft speed and time relationship

Info

Publication number
FR2256396A1
FR2256396A1 FR7347208A FR7347208A FR2256396A1 FR 2256396 A1 FR2256396 A1 FR 2256396A1 FR 7347208 A FR7347208 A FR 7347208A FR 7347208 A FR7347208 A FR 7347208A FR 2256396 A1 FR2256396 A1 FR 2256396A1
Authority
FR
France
Prior art keywords
point
aircraft
rulers
map
ruler
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.)
Withdrawn
Application number
FR7347208A
Other languages
French (fr)
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.)
BRUGEROLLE JEAN RENAUD FR
Original Assignee
BRUGEROLLE JEAN RENAUD FR
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 BRUGEROLLE JEAN RENAUD FR filed Critical BRUGEROLLE JEAN RENAUD FR
Priority to FR7347208A priority Critical patent/FR2256396A1/en
Publication of FR2256396A1 publication Critical patent/FR2256396A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/0005—Hand manipulated computing devices characterised by a specific application
    • G06G1/0052—Hand manipulated computing devices characterised by a specific application for air navigation or sea navigation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/20—Instruments for performing navigational calculations

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Automation & Control Theory (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Traffic Control Systems (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

A set of calculating rulers consists of a series of n rulers. Each ruler is valid for a given speed vn (4) of the aircraft. Each ruler has a time scale (1a, 1b) graduated in a progressively increasing manner from one extremity of the ruler to the other extremity and in time unit to each graduation interval (5) being equal to vn x t x e where e is a coefficient equal to the scale of the map used. Each ruler also has a distance scale (2a, 2b) graduated in a progressively increasing manner from one extremity to the other and in distance unit 1 each graduation interval (7a, 7b) being equal to 1 x e. The rulers are used to determine the time required to cover a given distance for a given speed of the aircraft.
FR7347208A 1973-12-28 1973-12-28 Point-to-point aircraft navigation rulers - having scales corresponding to map, aircraft speed and time relationship Withdrawn FR2256396A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7347208A FR2256396A1 (en) 1973-12-28 1973-12-28 Point-to-point aircraft navigation rulers - having scales corresponding to map, aircraft speed and time relationship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7347208A FR2256396A1 (en) 1973-12-28 1973-12-28 Point-to-point aircraft navigation rulers - having scales corresponding to map, aircraft speed and time relationship

Publications (1)

Publication Number Publication Date
FR2256396A1 true FR2256396A1 (en) 1975-07-25

Family

ID=9130050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7347208A Withdrawn FR2256396A1 (en) 1973-12-28 1973-12-28 Point-to-point aircraft navigation rulers - having scales corresponding to map, aircraft speed and time relationship

Country Status (1)

Country Link
FR (1) FR2256396A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620220A1 (en) * 1987-09-08 1989-03-10 Iscache Jacques Direct-reading aeronautical rule
GB2465016A (en) * 2008-11-06 2010-05-12 Lawrence John Meakins Tide ruler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620220A1 (en) * 1987-09-08 1989-03-10 Iscache Jacques Direct-reading aeronautical rule
GB2465016A (en) * 2008-11-06 2010-05-12 Lawrence John Meakins Tide ruler

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Legal Events

Date Code Title Description
ST Notification of lapse