LIFE SUPPORT/EGRESS

Question 1

Identify the minimum requirements for aircrew Personal Protective Equipment

Answer 1

Flight suit
aviator boots
anti-g garment
helmet
survival radio/beacon
gloves
anti- exposure suit
ID tags
knife
personal survival kit
signal device
flashlight
life preserver
laser eye protection.

Question 2

State the purpose of the Environmental Control System (ECS)

Answer 2

The Environmental Control System provides aircrew comfort and avionics cooling and has the following subsystems:
Bleed air control
Bleed air leak detection
Air cycle conditioning
Cabin cooling and defog
Avionics cooling
Cabin pressurization
Anti-G
OBOGS
Windshield anti-ice and rain removal
Radar liquid cooling
Canopy seal
Wave guide pressurization.

Question 3

Oxygen Mask

Answer 3

Designed for use with a regulator, provides breathing gas upon demand at a pressure schedule dependent upon altitude, also provides facial protection from projectiles and fire as well as being qualified for depths of 16 feet under water.

Question 4

Oxygen regulator

Answer 4

CRU-103/P Chest mounted, positive pressure, g-mounted regulator that provides on demand oxygen flow to the aircrew.

Question 5

Life preserver

Answer 5

LPU-36/P Life Preserver is a low profile floatation collar equipped with the Flu-8B/P automatic/manual inflation assembly; Authorized for use only with aircraft equipped with the ejection seat system.

Question 6

Anti-Gravity (anti-g) suit

Answer 6

Consists of a bladder system encased in a fire-resistant cloth, as G-forces increase the bladders automatically inflates to apply pressure on the body and restrict the downward flow of blood to aircrew feet and waist lessening the effects of black out.

Question 7

State the objective of the Egress System Checkout Certification Program

Answer 7

Thoroughly familiarize personnel working in and around the cockpit with ejection system and special hazards associated with those system and routinely monitor all such qualified personnel. Done before working on or around aircraft, every 6 months, after 90 days TAD.

Question 8

State the purpose of the ejection seat

Answer 8

1.Provide aircrew a place to sit during normal conditions
2. for propelling occupant out during emergency situations

Question 9

Hypoxia

Answer 9

Decrease in the amount of oxygen per unit volume of air results in an insufficient amount of oxygen entering the bloodstream causing the eyes, body and muscles to fail unless the individual breathes additional oxygen.

Question 10

Anoxia

Answer 10

Death due to complete lack of oxygen.

Question 11

Aviator’s Breathing Oxygen (ABO): Type I

Answer 11

Gaseous Oxygen MIL-0-272710D

Question 12

Aviator’s Breathing Oxygen (ABO): Type II

Answer 12

Liquid Oxygen, N/A

Question 13

State the purpose of the Dry Bay Fire Suppression System (DBFSS)

Answer 13

Suppresses fire events associated with ballistic damage to the aircraft before a significant fire occurs.
Performs without pilot action; consist of 14 optical fire detectors,
6 dry bay extinguishers and
a fire suppression control alarm.

Question 14

State the purpose of the Parachute Harness Sensing Release Unit (PHSRU)

Answer 14

Sea Water activated release system that provides a back up automatic mode of separating the parachute from the aircrew.

Question 15

Describe the A/A24A-56 Helmet Unit, Integrated, Joint Helmet Mounted Cueing System (JHMCS)

Answer 15

Display system used to cue, verify and employ weapons and sensors in high off bore sight angles. Helmet provides the mounting platform for the HDU and protects the operator from high impact and wind during ejection.

Question 16

State the purpose of the Helmet Mounted Display Unit (HDU)

Answer 16

The HDU uses miniature display components, which allows symbology to be projected onto the visor and is superimposed on the operators view. The system also provides a way of recording real-world view by routing the video to the cockpit video recording system (CVRS).

Question 17

Discuss the location and type of ejection seat used in the EA-18G

Answer 17

The ejection seat is a SJU-17A (V) 2/A series is a variant of the Navy common ejection seat (NACES). The seat is automatic, cartridge operated, and rocket assisted. Ejection is initiated by pulling the ejection control handle located on the front of the seat bucket.

Question 18

Canopy: Normal operation

Answer 18

Opened and closed by electrical means using an external canopy control switch or an internal canopy control switch. Manual controls provide backup operation of the canopy when electrical power is unavailable or when electrical control fails.

Question 19

Canopy: Emergency Operation

Answer 19

A canopy unlatch thruster provides emergency jettison of the canopy when driven by pyrotechnic components of the ejection seat/survival equipment/escape system.

Question 20

Discuss the location and operation of the Aircraft Fire Detection and Fire Extinguishing Systems

Answer 20

1. The fire detection system monitors the AMAD, APU and engine bays for fires or overheat conditions.
   The system then provides the pilot with audible and visual warnings of the fire or overheats conditions.
2. The fire extinguishing system uses a single fire extinguisher tank with three distribution lines, one for the APU and one for each of the engine/AMAD bays.
3. The system is a one shot, one bay system.

Question 21

Bleed Air System

Answer 21

Consists of clamped, insulated metal ducts (tubes) of many sizes and shapes which connect system control valves and sensors. The system supplies hot, high pressure engine bleed air for the ECS, OBOGS, and external fuel tank pressurization.

Question 22

Air Cycle Air Conditioning system

Answer 22

Cools and conditions engine bleed air for use in ECS and other systems.

Question 23

Anti-Gravity (ANTI-G) System

Answer 23

Made up of tubing and a valve which delivers regulated air pressure to the pilot’s anti-g suit which reduces the fatiguing effects of exposure to positive and negative g-forces.

Question 24

On-board Oxygen Generation System (OBOGS)

Answer 24

A series of lines, valves and a concentrator that regulate pressure, control flow and distribute oxygen to the crew station. Nitrogen and other contaminants are removed from engine bleed air leaving an oxygen-rich breathing gas mixture. The breathing gas is ducted to the cockpit where it is monitored for correct oxygen content before being supplied to the pilot. Waste gases removed from the engine bleed air are vented overboard.

Question 25

Ejection Seat System

Answer 25

Operated by ballistic gas pressure (produced by ejection seat initiators that fire when the ejection control handle is pulled) traveling through the system. Each seat initiator contains two cartridges (left and right);
1. gases from the right cartridge starts the canopy jettison sequence,
2. activates the seat electronic sequencer,
3. activates seat restraints and fires the seat catapult after a delay inserted by the escape system;
Gases from the left cartridge redundantly activates the seat electronic sequencer and also provides a backup source to fire the seat catapult should the primary path from the right cartridge fail.

Question 26

Canopy System

Answer 26

A pyrotechnically operated emergency canopy removal. It provides the capability to explosively jettison the canopy from the aircraft in the case of emergency. Canopy jettison is automatic when seat ejection is initiated. A CANOPY JETT lever in the cockpit manually initiates canopy jettison without initiating seat ejection.

Question 27

Emergency Oxygen System

Answer 27

In the seat pan; a 100 cubic inch emergency oxygen cylinder, a pressure reducer and associated piping are mounted on the underside of the platform. A green manual operating handle is mounted on the left side of the platform and a cylinder contents gage is on the inside face of the left hand thigh support. The emergency oxygen is automatically activated during ejection by a lanyard connected to the cockpit floor. An oxygen/ communications hose is connected to fittings on the left rear top of the rigid platform and provides connections between the seat occupant and the aircraft and survival kit system.

Question 28

Safety Precautions: Ejection Seat

Answer 28

Ensure ejection seat safety pins installed and handle safe.

Question 29

Safety Precautions: Canopy Jettison System

Answer 29

Ensure the canopy jettison aircraft ground safety pin is installed.

Question 30

Safety Precautions: Canopy Operation

Answer 30

Do not leave canopy in an intermediate position or open/close canopy when the aircraft is in motion, do not use battery power to open canopy below zero degrees Fahrenheit; Ensure canopy sills and canopy deck are clear of personnel and foreign objects before operation, canopy ground safety pin installed.