Download F/A-18 Aircraft Systems: Questions and Answers for Enlisted Aviation Warfare Specialists and more Exams Nursing in PDF only on Docsity!
(EAWS) Phase 3&4 VFA 106 rated A
Explain the purpose of the Hydraulic Fluid Analysis. - Lubrications, heat transfer, and contamination Explain the purpose of the Tactical Paint Scheme. - reduces aircraft signature Discuss the Corrosion Control Publication. - NA 01-1A- Explain the three modes of Wheel Brakes. - Emergency, Normal, Park Explain the purpose of Composite Airframe Material. - Limit weight, increase strength and decrease effect of corrosion attack Discuss types of repairs. -. Temporary repair is one where repairs that are simple and practical as possible, normally restores full load carrying capabilities allowing flight to be made until permanent repair can be made.
. One time flight repair is made to restore limited load carrying requirements to allow an aircraft to fly to a repair station. Discuss Aircraft structure. - Radome-Radar, Foward Fuselage, center fuselage, aft fuselage, wings Discuss Flight control surfaces. - These surfaces are controlled by various computers and hydraulic servo-cylinders installed throughout the aircraft. Surfaces include Ailerons.
(EAWS) Phase 3&4 VFA 106 rated A
Explain the F/A-18 Hydraulic System. - Hydraulic system in the F/A-18 are complex. Each system contains an accumulator, hydraulic reservoir, lines and multiple valves. HS1-provides hydraulic fluid to the primary flight controls. HS2- provides hydraulic fluid to primary flight controls and supplies pressure to non flight controls. Discuss the Principles of Operation for. A. Electronic Flight Controls B. Emergency Landing Gear Extension - A. Ailerons in flight are commanded asymmetrically to produce roll motion. Leading edge flaps when taking off or landing the leading edge flaps deflect asymmetrically to aid the ailerons in producing roll motion. B. Ground safety safety pins which prevents retraction Explain the purpose of using composite materials in aircraft construction. - The purpose of composite material is to limit weight, increase strength and decrease effect of corrosion attack. Explain the purpose of the launch bar. - The launch bar provides a means of steering the aircraft during carrier deck tracking and engages the catapult, applying catapult tow forces to the aircraft. Describe the location of the launch bar. - The launch bar is located on the forward side of the nose landing gear shock strut.
(EAWS) Phase 3&4 VFA 106 rated A
Explain APU Modes of Operation. - The three modes are ground maintenance mode (GMM), main engine start (MES), and environmental control systems (ECS). Discuss the purpose and location of the IFR Probe. - The in-flight refueling (IFR) probe allows the aircraft to take fuel from a tanker aircraft in-flight and is located on the right forward fuselage. Discuss the purpose of Foam Lined Wing Tanks. - Wing tanks are foam lining allowing them to self-seal holes or damage, decreasing fire and explosion hazards. Name the types of oil that are authorized for use on the A-D or E-F. - Lubricating oil, Amad oil, Mil PRF 23699/ MIL PRF 7808 Explain the purpose of the Engine Anti Icing System. - Provides anti-ice air flow to the engine front frame, inlet center body and inlet device; prevents the build-up of ice on air inlet hardware. Discuss the fuel capacity of the F-18 A-D or E-F. - Ranges from approximately 10,200 lbs in a F/A-18C to as much as 30000 lbs in an F/A-18E. Explain what the APU is and the purpose. - Auxiliary power unit is a centrifugal flow gas turbine engine supplying air for ECS operation, MES and GMM through the AMADS and has three modes. Explain what the AMAD is and the purpose. - Airframe mounted accessory drive is pneumatically connected to the APU through the air turbine starter, transmits power to the engine for starts.
(EAWS) Phase 3&4 VFA 106 rated A
Discuss the Variable Exhaust Nozzle (VEN). - Cam and linked-positioned hinged- flap, convergent-divergent nozzle, mounted to the aft end of the afterburner case. How many Fuel cells are in the F18 A-D or E-F? - 4 What is the FADEC and its purpose. - Full authority digital electrical control receives aircraft and engine sensor information and determines the appropriate engine scheduling to operate the engine in all areas of the flight envelope. Discuss the system interface between the AMAD, APU, and Engines. - The APU is a centrifugal flow gas turbine engine supplying air for ECS operation. The AMAD is pneumatically connected to the APU and transmits power to the engine for starts. Explain Fuel pressurization and vent. - The fuel pressurization and vent system maintains pressure on the fuel in all tanks and vents fuel vapors overboard. Explain Hot Fuel Recirculation. - The hot fuel recirculation system fuel separates from the motive flow fuel at the heat exchanger wash filters. Discuss the purpose of the Air refueling store. - The purpose of the store is to provide a basic aircraft with in-flight refueling tanker capabilities. Discuss the safety concerns associated with avionics. - Operation of the radar makes this a radiation hazard to personnel. When applying external power circuit
(EAWS) Phase 3&4 VFA 106 rated A
Discuss ARI and its purpose. - Attitude reference indicator is a self-contained pitch and roll attitude reference system with an electrically driven gyro maintains vertical orientation through use of an electronic. Discuss ILS and its purpose. - Instrument Landing system is an all-weather approach guidance system provides steering information during an aircraft approach by decoding azimuth. Define RADAR. - radio detection and ranging; provides air-to-air (A/A) and Air-to- ground (A/G) modes for target detection, designation, tracking and navigation Explain the advantages and disadvantages of using fiber optics. - Advantages: improved system performance, immunity to electrical noise, signal security, improved safety and electrical isolation, reduced size and weight, environmental protection and overall system economy. Disadvantages: Made of glass making it fragile and not bendable What is the purpose of the Mission Computers? - Mission Computers provides data conversion with non-mux avionic equipment through the control converter by way of the avionic MUX channel. Explain MIDS/JTRS. - Multifunctional information distribution system/ Joint Tactical radio system terminals are intended to exchange information including air and surface tracks, identification, host platform fuel, weapons, mission status, engagement orders, targeting data, and engagement results.
(EAWS) Phase 3&4 VFA 106 rated A
What is TEWS? - Tactical electronic warfare system provides electronic detection and identification of surface and airborne threats and can provide active electronic jamming and dispensing of chaff and flares. Discuss CSC. - Control Converter; digital to analogue and vice versa so everything can communicate with each other audio signals Discuss Tactical Jamming System An/ALQ-126/214 and components. - Protects from missile attacks and gun radar makes aircraft undetectable sends out different frequencies for jamming ALQ 126 computer, wiring, quad receivers. Identify what is in the MDG. - Heads-up display (HUD), Digital Display Indicators (DDI), Up front control display (UFCD), Multipurpose color display (MPCD). Discuss the HUD and what is displayed. - heads up display; provides aircraft altitude, steering, navigation, A/A and A/G weapons, FLIR video Discuss the UFCD. - Up front control display, entry and display of aircraft data. Discuss the MPCD. - Multipurpose color display has mechanical push buttons for operator inputs and is used as a multifunction display. Describe the function of the Digital Map set. - Stores/works with MCPD to display map
(EAWS) Phase 3&4 VFA 106 rated A
d) vertical speed indicator - a) measures temperature; pitot and static air pressures b) displays airspeed as a function of pitot and static pressure c) displays altitude with 3 displays d) senses change in air pressure and displays them in the form of climb or dive rate from 0 to 6000 feet per minute Describe the Air Data Pressure Transmitter. - Convert pneumatic pressure inputs from the pitot static/total temperature probes into digital signals which are proportional to the measured pressures Describe the Angle of Attack (AOA) Indexer. - shows approach angle of attack with lighted symbols Describe the AOA transmitter. - Measures the difference between the longitudinal axis of the aircraft and the airstream. Describe what the AFCS is. - An electrohydromechanical system that provides inputs to the flight control system to assist the pilot in maneuvering and handling the aircraft. What is the purpose of the Nose Wheel Well Digital Display Indicator? - Used to receive and store maintenance codes from the recorder, and provides a visual display of stored maintenance codes on operator request included in DFIRS
(EAWS) Phase 3&4 VFA 106 rated A
Describe the Digital Memory Device. - Mounted in cockpit works with mission computer and digital map system programmable computer non volatile memory device. mission card and maintenance card What is the purpose of the Flight Incident Recorder and Monitoring System? - Monitors engine and airframe operational status for unit failures and caution/advisory conditions Discuss the Joint Helmet Mounted Cueing System? - Improves situational awareness, increases aircraft survivability and increases the ability to acquire a visual target. works with AIM-9x missile Describe the following electrical Components. a) Power supply b) Maintenance Battery - a) consists of two generators, two transformer- rectifiers, one battery with the dedicated battery charger, and a power distribution system b) supplies 28 vdc power to the essential and maintenance/start buses. What is the objective of the Explosive Handling/Cerification? - To ensure that all personnel after having received training and demonstrated the ability to properly and safely perform all function and task involving explosive devices, are certified to handle such devices.
(EAWS) Phase 3&4 VFA 106 rated A
b) brown c) blue - a) high explosives b) rocket motors c) training (protective bomb) Define the following weapon guidance systems. a) active b) semi-active c) passive - a) target illumination is supplied by a component carried by the missile b) missile gets its target illumination from an external source c) directing intelligence is received from target Describe the purpose of Chaff/Flares. - flares are used during evasive maneuvers against heat-seeking missiles. chaff is fine-shredded metal strips that block radar and radar guided missiles. Discuss the hazards with forward firing ordnance. - auto-ignition, toxic chemicals, inadvertent separation from aircraft, high heat, protruding surfaces and motor detonation Describe the types of Bomb/Ejecter racks. - Bru-32, Bru-33, Bru-42, Bru-41 used to suspend and eject single stores and weapons Bru-32 fuel tanks Bru-41 training bombs
(EAWS) Phase 3&4 VFA 106 rated A
Identify the location/purpose of the ICM switch. - forward fuselage allows releasing of chaff/flares Define the purpose of the following SMS components. a) armament control processor set b) command launch computer - a) provides electrical interface between the weapon stations, aircraft switching, and related aircraft systems and consists of an ACP and up to nine SDCC b) used to control and monitor the high speed anti radiation missile (HARM), located in door 13 R Define the purpose of the countermeasurement dispensing system. a) AN/ALE- b) AN/ALE-50/55 - a) provides aircraft protection in sophisticated threat environments holds chaff and flare b) provides off-board countermeasure capability Describe the following Air to Air missiles. a) AIM- b) AIM-9m/x c) AIM-120 - a) Sparrow- guided missile which is a solid fuel rocket propelled air- to-air missile with a conventional warhead using semi-active radar homing for guidance b) Sidewinder-supersonic, air-to-air, with a passive infrared target detection, proportional navigation guidance, and torque-balance control system
(EAWS) Phase 3&4 VFA 106 rated A
Discuss the following personnel flight equipment. a)oxygen mask b) oxygen regulator c) life preserver d) anti-gravity suit - a) designed for use with a regulator and provides breathing gas upon demand at a pressure schedule dependent upon altitude b) chest mounted, positive pressure, g-mounted regulator that provides on demand oxygen flow to the aircrew c) low profile floatation collar equipped with the Flu-8b/p automatic/manual inflation assembly d) consists of a bladder system encased in a fire-resistant cloth, as G-forces increases 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 Discuss the Environment Control Twelve Sub Systems. - Bleed air control, bleed air leak detection, air cycle conditioning, cabin cooling and defog, avionics cooling, cabin pressurization, anti g/vent suit, OBOGS, windshield anti-ice and rain removal, radar liquid cooling, canopy seal, wave guide pressurization Discuss the following Personnel Flight Equipment. a) Oxygen Mask b) Oxygen Regulator c) Life Preserver
(EAWS) Phase 3&4 VFA 106 rated A
d) Anti-Gravity Suit - a) designed for use with a regulator and provides breathing gas upon demand at a pressure schedule dependent upon altitude b) chest mounted, positive pressure, g-mounted regulator that provides on demand oxygen flow to the aircrew c) low profile floatation collar equipped with the Flu-8 B/P automatic/manual inflation d) consist of a bladder system encased in a fire- resistant cloth, as G-forces increases 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 Define the objective of the Egress Seat Checkout Certification Program. - Thoroughly familiarize personnel working in and around the cockpit with ejection seats and the special hazards associated with those systems What is the purpose of the ejection seat? - provides aircrew a place to sit during normal conditions and for propelling occupant out during emergency situations. Define Hypoxia. - a decrease in the amount of oxygen per unit volume of air and results in an insufficient amount of oxygen entering the bloodstream causing the eyes, body and muscles to fail unless the individual breathes additional oxygen. Define anoxia. - death due to complete lack of oxygen What are the types of Aviation Breathing oxygen? - Type 1 is gaseous oxygen MIL- 0-272710D Type 2 is liquid oxygen
(EAWS) Phase 3&4 VFA 106 rated A
b) Fire extinguishing system - a) monitors the AMAD, APU, and engine bays for fires or overheat conditions. provides the pilot with audible and visual warnings of fire or overheat conditions b) uses a single fire extinguisher tank with three distribution lines, one for the APU and one for each of the engine/AMAD bays. Discuss the following pertaining to the Environmental Control systems. a) bleed air system b) Air cycle air conditioning system c) anti-gravity system (anti-g) d) on-board oxygen generating system (OBOGS) - a) consists of clamped, insulated metal ducts (tubes) of many sizes and shapes which connect system control valves and sensors. Supplies hot, high pressure air for the ECS, OBOGS and external fuel tank pressurization. b) cools and conditions engine bleed air for use in ECS and other systems c) made up of tubing and a valve which delivers regulated air pressure to the pilots anti-G suit which reduces fatiguing effects d) series of lines, valves and a concentrator that regulate pressure, control flow and distribute oxygen to the crew station. Discuss the following pertaining to the egress systems. a) ejection seat system b) canopy system c) emergency oxygen system - a) operated by ballistic gas pressure, produced by ejection seat initiators that fire when the ejection control handle is pulled, travelling through the system
(EAWS) Phase 3&4 VFA 106 rated A
b) pyrotechnically operated emergency canopy removal. provides the capability to explosively jettison the canopy from the aircraft in the case of emergency c) located in the seat pan. automatically activated during ejection by a lanyard connected to the cockpit floor. Discuss the safety precautions for the following systems. a) ejection seat b) canopy operations c) canopy jettison system - a) ensure ejection seat safety pins are installed and handle is in the safe position b) don't leave canopy in intermediated position, open or close the canopy when the aircraft is in motion, use battery power to open when below 0 degrees Fahrenheit, canopy sills free of FOD and personnel. c) ensure the canopy jettison safety pin is installed Define the following acronyms: a) SEAD b) WAS c) CAS d) MAS e) ACM f) CAP g) FCF h) FCLP i) VMC
