Post on 18-Oct-2014
description
Airbus A320 simulator flight Basic idea of Airbus fly by wire
Jacklyn WuIVAO HKStanding Committee on Aviation Resource and Education Development
IVAOHK
Objective
• Basic understanding of flight controls• Flight control laws/modes of Airbus family• Handling characteristics of Airbus family
IVAOHK
Four Forces
IVAOHK
IVAOHK
Primary Flight Controls
IVAOHK
Mechanical Flight Control Systems
IVAOHK
Fly by wire Flight Control Systems
IVAOHK
Fly by wire Flight Control Systems
IVAOHK
Fly by wire Airbus Flight Control Laws
Normal Law Alternative Law Direct Law
Ground Mode
Flight Mode
Flare Mode
IVAOHK
Ground Mode
Surface deflection is proportional to stick deflection
IVAOHK
Flight mode - Protections
Load Factor Protection• 2.5 g in clean
configuration,• 2.0 g with the flaps
extended.
IVAOHK
Flight mode - Protections
Pitch Protection
•30 degree up / 15 degree down
IVAOHK
Flight mode - Protections
High Speed Protection
IVAOHK
Flight mode - Protections
IVAOHK
Flight mode - Protections
IVAOHK
Flight mode – Pitch Control
IVAOHK
Flight mode – Pitch Control
if there is no input on the stick:• The aircraft maintains the flight path, even in
case of speed changes• In case of configuration changes or thrust
variations, the aircraft compensates for the pitching moment effects
• In turbulence, small deviations occur on the flight path. However, the aircraft tends to regain asteady condition.
IVAOHK
Flight mode – Pitch Control
• Flare requires the pilot to apply permanent aft pressure on the sidestick, in order to achieve a progressive flare.
• Whereas, derotation consists of smoothly flying the nosegear down, by applying slight aft pressure on the sidestick.
IVAOHK
Flight mode – Roll Control
IVAOHK
Flight mode – Roll Control
During a normal turn (bank angle less than 33 °), in level flight:• The more the sidestick is moved laterally, the greater
the resulting roll rate - e.g. 15 °/s at max deflection• Not necessary to make a pitch correction• Not necessary to use the rudder.In the case of steep turns (bank angle greater than 33 °)• Lateral pressure on the sidestick to maintain bank• Aft pressure on the sidestick to maintain level flight.
IVAOHK
Contact us
http://ivao.hk