IP Library › Granted Patent US 12673786
Granted Patent B2
US 12673786 · App. 18/118,396 · Granted Jul 7, 2026

Display system of an aircraft suitable for displaying a flare floor symbol and associated display method

Inventors: Sébastien Lepage (Saint-Cloud, FR); Arnaud Turpin (Saint-Cloud, FR)
Assignee: DASSAULT AVIATION
B64D45/08
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12673786
App. No.
18/118,396
Granted
Jul 7, 2026
Kind
B2
Abstract

An aircraft display system includes a display; and a unit for generating display on the display, suitable for dynamically displaying on the display at least one horizon line, a slope scale with respect to the horizon line, and a velocity vector symbol. When approaching a landing strip, the display generating unit is suitable for displaying, below the horizon line, a flare floor symbol, defining, along with the horizon line, a range of possible slope values for the flare.

Claims (34)

1 . An aircraft display system for an aircraft, comprising:

a display; and

a display generator configured to dynamically display on the display a horizon line, a slope scale with respect to the horizon line, and a velocity vector;

the display generator being configured to display, below the horizon line, a flare floor symbol when approaching a landing strip, the flare floor symbol defining, along with the horizon line, a range of possible slope values for a flare of the aircraft,

wherein the display generator is configured to determine a nominal flare control law defining a vertical speed increase profile during the flare, a position of the flare floor symbol being defined according to the nominal flare control law, with an offset with respect to the nominal flare control law.

2 . The system according to claim 1 , wherein during a first phase of the flare, the display generator is configured to raise the flare floor symbol towards the horizon line, and during a second phase of the flare subsequent to the first phase of the flare, the display generator is configured to maintain the flare floor symbol at a constant distance from the horizon line.

3 . The system according to claim 1 , wherein the offset with respect to the nominal flare control law of the flare floor symbol varies according to a vertical velocity of the aircraft.

4 . The system according to claim 1 , wherein the display generator is configured to display a flare initiation symbol, located above the flare floor symbol, the display generator being configured to define with a velocity vector symbol, a position for a recommended start of flare.

5 . The display system according to claim 1 , wherein, when approaching the landing strip, the display generator is configured to generate, on the horizon line, a deformed region according to a topographic slope of the landing strip approached by the aircraft, the flare floor symbol being arranged facing the deformed region.

6 . The system according to claim 1 , wherein the flare floor symbol includes a horizontal segment parallel to the horizon line.

7 . The system according to claim 6 , wherein the flare floor symbol is horizontally centered on the velocity vector symbol.

8 . The system according to claim 1 , comprising a warning generator configured to generate a visual, an auditory or a tactile warning when the velocity vector symbol moves below the flare floor symbol.

9 . A display method in an aircraft, comprising the following steps:

providing the system according to claim 1 ;

when approaching a landing strip, displaying on the display by the display generator, below the horizon line, of a flare floor symbol defining, along with the horizon line, a range of possible slope values for the flare.

10 . The system according to claim 1 , wherein the display generator is configured to display the flare floor symbol to further show an unrecommended range of slope values.

11 . An aircraft display system for an aircraft, comprising:

a display; and

a display generator configured to dynamically display on the display a horizon line, a slope scale with respect to the horizon line, and a velocity vector;

the display generator being configured to display, below the horizon line, a flare floor symbol when approaching a landing strip, the flare floor symbol defining, along with the horizon line, a range of possible slope values for a flare of the aircraft,

wherein a vertical offset of the flare floor symbol with respect to the horizon line is defined according to a nominal flare control law, a set point of the nominal flare control law being between the flare floor symbol and the horizon line.

12 . The system according to claim 11 , wherein a vertical offset of the flare floor symbol with respect to the set point of the nominal flare control law is constant and/or is variable.

13 . The system according to claim 11 , wherein the set point of the nominal flare control law is halfway between the flare floor symbol and the horizon line.

14 . The system according to claim 11 , wherein during a first phase of the flare, the display generator is configured to move the flare floor symbol with respect to the horizon line to vary a vertical offset of the flare floor symbol with respect to the set point of the nominal flare control law.

15 . An aircraft display system for an aircraft, comprising:

a display; and

a display generator configured to dynamically display on the display a horizon line, a slope scale with respect to the horizon line, and a velocity vector;

the display generator being configured to display, below the horizon line, a flare floor symbol when approaching a landing strip, the flare floor symbol defining, along with the horizon line, a range of possible slope values for a flare of the aircraft,

wherein the display generator is configured to display a flare initiation symbol, located above the flare floor symbol, the display generator being configured to define with a velocity vector symbol, a position for a recommended start of flare.

16 . The system according to claim 15 , wherein the position for the recommended start of flare corresponds to a horizontal coincidence between the velocity vector symbol and the flare initiation symbol.

17 . The system according to claim 15 , wherein the display generator is configured to delete the display of the flare initiation symbol starting from a position of the recommended start of flare.

18 . The system according to claim 15 , wherein the display generator is configured to determine a nominal flare control law defining a vertical speed increase profile during the flare, the position of the flare floor symbol being defined according to the nominal flare control law, with an offset with respect to the nominal flare control law, the flare initiation symbol being positioned according to the nominal flare control law.

19 . The system according to claim 15 , wherein the display generator is configured to, during an initial phase, raise the flare floor symbol together with the flare initiation symbol.

20 . The system according to claim 15 , wherein the display generator is configured to display the flare floor symbol, during an initial phase, offset vertically below the position of the flare initiation symbol.