Avionic Systems Flashcards
how much do the avionic systems account for of aircraft cost
30%
what is the main driver for avnionic systems
minimisation of flight crew and automation
2 crew operations result in savings in what
- salaries
- weight
- training
- expenses
secondary drivers of avionic systems are
- impoved safety
- reduction in maintenance costs
- allows for operations in all weathers
- better control/handling & performance
What systems interface directly with the pilot
- Displays
- communication
- data entry and control
- flight control systems
what is a display systems
provides visual interface between pilot and aircraft systems
what 3 types of displays are there
- heads down display (HDDs)
- heads up display (HUDs)
- helmet mounted display (HMDs) aka HUDs on helmets
why is communication systems important
- allows for communication between aircrafts and base
- essential for air traffic control
what does a data entry and control system do
allows the pilot to interact with the on board avionics systems via keyboards, panels and direct voice input (DVI)
in flight control systems, what 2 categories are they
- auto-stabilisation
- fly-by-wire control system
what are auto-stabilisation systems most commonly used for/in
- swept wing aircraft and combat aircraft
- ost have 3 azis auto stabilisation
what does a fly-by-wire control system do
allows for care-free manoeuvering by restricting some of the pilots commands according to aircraft state;
proves continuous auto-stabilisation via manipulation of flight control surfaces by the computer
In the aircraft state sensor system, what are the 3 sub systems
- air data systems
- inertial sensor systems
- navigation systems
what air data quantities are needed to navigate the system
- altitude
- calibrated air speed
- true airspeed
- vertical airspeed
- mach number
- air stream incidence angle
what measurements are taken to calculate the air data quantites
- static pressure
- total pressure
- air temperature
- air stream incidence sensor
