A device for assisting an airplane in intercepting a segment of a flight path utilizing positional and ground speed indicators
a technology of positional and ground speed and flight path, which is applied in the direction of process and machine control, instruments, navigation instruments, etc., can solve the problems of high workload, large selection scale, and inability to modify scale,
Inactive Publication Date: 2007-06-28
EUROCOPTER
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Benefits of technology
[0025] All this graphic information forms the flight path interception path which ends, if there is no flight path overshoot, in an interception turn (circle arc more or less deformed to allow for wind effect) in the horizontal plane. This graphic representation enables the pilot to see and act early enough to adjust his approach, then his interception turn. This results in a gain in terms of efficiency and availability because, in particular, it relieves the pilot of the need to release the controls.
[0026] In addition, thanks to the first means of indication, the pilot is given graphic information supplying him both with the real direction towards which the aircraft is moving and a first estimation of the ground speed vector module at which it is moving. In addition, this indication offers the advantage of being displayed close to a screen position used by the pilot a great deal during the pre-defined flight path interception / monitoring phase, i.e., said first symbol indicating the current position of the aircraft.
Problems solved by technology
Furthermore, during the periods of intense workload encountered by the pilot, omitting to modify a scale can have damaging consequences.
Indeed, the pilot may believe erroneously that the aircraft is properly aligned on the flight path to follow whereas, in reality, the selected scale is too large.
Finally, in order to accomplish with satisfactory accuracy, the complete procedure demands a great deal of know-how and also intense attention and activity (high workload) throughout the interception and follow-up duration.
Note that organization and dosing difficulties are essentially due to the fact that the customary instruments and / or symbologies used are not organized to present an obvious synthesis of the effective situation.
Method used
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[0066] Device 1 conforming to the invention is intended to assist with the interception by an aircraft of a flight path segment T located in a horizontal plane. This device 1 may be part of a system 2 conforming to the invention and represented schematically in FIG. 1, designed to assist with the interception and monitoring by an aircraft of a flight path segment of this type. To this end, said system 2 carried on the aircraft includes: [0067] interception aid device 1; and [0068] flight path monitoring aid device 3.
[0069] In a known manner, device 1 for interception aid includes: [0070] means 4 for determining the values of the aircraft parameters; and [0071] display means 5 for presenting, on at least one basic display screen 6, as shown in FIG. 2: [0072] at least said segment S3 to be intercepted on flight path T. Flight path T includes, in the horizontal plane, a multitude of rectilinear segments S1, S2, S3 and S4, connected together or limited by points P1, P2, P3, P4;
[0073] ...
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Device assisting with interception by an aircraft of a flight path segment located in a horizontal plane and a system of assistance with interception and follow-up of such a segment. The device includes means of determining a ground speed vector and means of displaying to present, on a screen, a means of indication (10) of the ground speed corresponding to a first rectilinear section (11) in the horizontal plane, connected to a symbol (7) whose angular orientation corresponds to the direction of said ground speed vector and whose length is variable, a means of interception approach indication (12) corresponding to a second rectilinear section (13) in the horizontal plane of variable width and provided for as an extension of first rectilinear section (11) and a means of indication (14) of the interception turn corresponding to at least one circular arc (15) in the horizontal plane, provided to extend second rectilinear section (13).
Description
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] This invention concerns a device for assistance with interception by an aircraft for a flight path segment located in a horizontal plane, and a system for assistance with the interception and follow-up of such a segment. [0003] 2. Description of Related Art [0004] In general, when an aircraft pilot, for instance flying a helicopter, wishes to intercept a flight path in the horizontal plane, he has to perform the following operations: [0005] identify the flight path part (segment) to be reached, and take a heading for its interception allowing for the effect of wind, if known; [0006] anticipate the turning of the aircraft to join the flight path without overshoot, depending on the speed of the aircraft and the angle of interception; and [0007] ensure that the interception flight path is reliable with respect to ground and any nearby obstacles. [0008] The precision required to follow an intercepted flight path, includ...
Claims
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Login to View More IPC IPC(8): B64C13/16G01C21/12G01C23/00
CPCG01C21/12G01C23/005G05D1/0202
InventorBAUDRY, JEAN-PIERRE
OwnerEUROCOPTER