Invention Grant
- Patent Title: Computing and displaying climb dive marker elevation
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Application No.: US15883989Application Date: 2018-01-30
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Publication No.: US10794726B2Publication Date: 2020-10-06
- Inventor: John Timothy Pearson , Lawerance Ray Butler , Keith Thomas Grandin , Michael Allen Robb
- Applicant: ELBIT SYSTEMS OF AMERICA, LLC
- Applicant Address: US TX Fort Worth
- Assignee: ELBIT SYSTEMS OF AMERICA, LLC
- Current Assignee: ELBIT SYSTEMS OF AMERICA, LLC
- Current Assignee Address: US TX Fort Worth
- Agency: K&L Gates LLP
- Main IPC: G05D1/00
- IPC: G05D1/00 ; G01C23/00 ; B64D43/00 ; G02B27/01

Abstract:
A method of calculating a climb-dive marker (CDM) that is visibly present on a display even as the aircraft approaches a roll angle of +/−90° is provided. An exemplary CDM method comprises obtaining, an X-axis velocity, a Y-axis velocity, and a Z-axis velocity in aircraft body coordinates of an aircraft; calculating a CDM elevation; and displaying, by the controller, the calculated CDM elevation. The method can further comprise obtaining an angle of attack (AoA) of the aircraft and a roll angle of the aircraft, wherein the AoA is set as the value of the CDM elevation when the roll angle is within a preset range. The CDM elevation may also be calculated using a combination of the AOA and the CDM formula when roll angle is within a second preset range.
Public/Granted literature
- US20190025077A1 COMPUTING AND DISPLAYING CLIMB DRIVE MARKER ELEVATION Public/Granted day:2019-01-24
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