ECS Flashcards
air conditioning comes from high and low pressure compressor section and its path is:
heat exchanger (part goes to fuel tank pressurization)- air conditioning compressor - two more heat exchangers - (part to G-Suit and Seal) air conditioner turbine - water separator - cockpit and avionics bay
ECS is controlled by ________ buses
emergency dc buses
the EQUIP HOT light will illuminate if the SIR SOURCE knob is not in ______ due to _________ over the thermistor and the light interrupts electrical power to the ________
NORM ; insufficient airflow over the thermistor ; the radar will turn off
the pressurization system uses ________ to sample outside air pressure
outside static ports
pressurization schedule:
0-8k’ - unpressurized
up to 23k’ - held to 8k’
above 23k’ - maintain 5-psi differential
CABIN PRESS light on when cabin pressure exceeds ____ and a relief valve should open when cabin pressure exceeds ____psi relative to ambient pressure
27k’ ; 5.4psi
in RAM there is _______ but no ______
there is avionics cooling and cockpit ventilation
but no G-Suit, canopy seal, PBG, or external tank pressure
TEMP control knob in off- air delivered to cockpit ~____ degrees F and between ____ and ___ in AUTO
35 degrees - off
50-80 degrees - AUTO
With DEFOG lever in MAX and TEMP control switch in AUTO cockpit air will only be in the _____ vents and will be full warm for _____ minutes
forward vents full warm for 3 minutes
In cold weather use _______ and ________ to preheat the canopy
MAX DEFOG and MAN WARM
EQUIP HOT light may come on during ________ but should go off once the ____ shuts off
extended ILS/GCA approaches (or high altitude low airspeed) - goes off once radar shuts off
____-liter liquid oxygen system
5-litre
PBG provides pressure breathing above ____Gs
above 4 Gs
in NORM O2 - positive pressure is provided above
28k’-32k’
OXY LOW light will illuminate when ______
below .5 liters or with <42 psi of system pressure
