Fast Jets Flashcards
3 types of caution
warning, caution , advisory
what do hydraulics do
force multiplication
what direction does force go in hydraulic column
every direction evenly
what does resevoir do hydraulics
cools and de-aerates
2 types of actuators
single acting eg. uplock, double acting eg. flaps
5 positives of hydraulics
simple, reliable, resist EM, good power to weight, rapid and precise response.
most common hydraulic system
undercarriage
how long does backup system lsat
indefinitely
PFCU
powered flying ocntrol unit- controlled movement of larger control surfaces to counter aerodynamic forces at higher speeds
2 warnings from hydraulics
high temp low pressure
what ensures under carriage operates in cirrect order
sequencing valve
what uses incompressability of oil
actuators, brake calipers, shock absorbers
fuseable plug
fis in wheel, melts at set temp and lets wheel deflate rather than explode
3 green lights
undercarriage down and locked
uplock
disengages under carriage prior to extending
what gas in blow down system
nitrogen
WoW?
weight on wheels. enables components to use on ground eg brakes, disables components for air eg weapons
split rim?
2 halves of wheel bolted together, allows tyres to be fitted without straetching over frames
re tread
replace rubber over carcass once max tread wear
what cant do to undercarriage once lowered in emergency
take back up
ABS varies?
frequency and pressure of brakes
Brakes material and make up
carbon composite discs
micro switches
control red/green attention lights
differential braking
use brakes independantly to decrease turn circle
