Tuning of Low Speed Protections
Fly-by-wire technology provides the possibility to protect aircraft from entering a stall condition. This video shows how the stall protection at low speed is tuned during several flight tests with different maneuvers performed. This allows for certain parameters to be tuned such as the maximum angle of attack.
Tuning of High Speed Protections
This video shows how high speed protections are tuned on fly-by-wire aircraft in order to limit any VMO/MMO exceedance and avoid reaching the maximum design limit speeds (or design dive speeds – VD/MD), which ensures no loss of control and no structural damage even above VMO/MMO.
Tuning of AOA Protections at High Mach Number
On large aircraft, in clean configuration and high altitude, when the angle of attack increases some buffeting appears and intensifies up to a point it becomes a deterrent for the flight crew. This defines the limit angle of attack of the flight domain, which decreases when the Mach number increases. This video shows how the […]
Flight Tests with Ice Shapes
The certification requires safe operation in maximum ice accretion conditions. Since those conditions might be difficult to encounter during flight tests, artificial ice shapes are installed on all leading edge surfaces that do not have anti-ice protection systems fitted. This video shows how flight tests are performed with ice shapes to validate performances and operational […]
Stall Tests
During the flight tests campaign of a new aircraft, hundreds of stalls are performed. One of the main objectives of stall tests is the measurement of the stall speed. The stall speed is essential in order to maintain sufficient margin to the stall in operations while ensuring optimal performance at takeoff and landing. This video […]
Maximum Energy Braking
On a new airplane, the braking performance of an acceleration-stop with maximum energy is demonstrated by a full scale test. This video shows how this test is conducted to ensure that the aircraft at maximum certified energy can be safely brought to a stop using only its brakes and that there is enough time for […]
What about Deceleration Means at Landing ? V2
The Version 2 is an update to include the recently introduced new STD callout related to autobrake monitoring. This video details: . The deceleration means at landing and the logic behind them . The STD callouts during landing in normal operations . The callouts during landing in the event of abnormal operations.
Flutter Tests
This video describes the flutter phenomenon and how we test aircraft to ensure they are free from flutter, with sufficient margin, up to the design limit speeds (or design dive speeds VD/MD).
Autopilot and Flight Control Protections
In this WIN video, we will first review the Flight Control Philosophy and the design objectives of the FBW protections in Manual flight and the Autopilot in its operation area. Then, we will review the Autopilot and Flight control Integration and specifically the normal law protections and the autopilot limit. To illustrate the Flight Control […]
Understanding and Managing Cockpit Control Confusion in Operations
Mind your hand! This WIN video provides an exchange between a Human Factors specialist and a Pilot. The aim of this exchange is to better understand and manage the confusion between the cockpit controls in operations.