Term
| Fuselage - Forward Section |
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Definition
| Includes the flight station. |
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Term
| Fuselage - Mid Body Section |
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Definition
| The midsection of the aircraft. |
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Term
| Fuselage - Aft Fuselage Section |
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Definition
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Term
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Definition
| Built as an integral part of the fuselage. After the structure assembly is completed, the box beam is sealed to form auxiliary fuel tanks. |
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Term
| Wings - Left and Right wing outer panel |
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Definition
| The outer wing consists of flaps, leading and trailing edge, wingtips, ailerons, and engine nacelles. |
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Term
| Tail - Horizontal Stabilizer |
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Definition
| (Longitudinal Stability) Provides stability of the aircraft about the lateral axis. This is the base in which the elevators are attached. |
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Term
| Tail - Vertical Stabilizer |
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Definition
| (Directional stability) maintains the stability of the aircraft about its vertical axis. Serves as a base to which the rudder is attached. |
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Term
| Flight Controls/ Surfaces - Flaps |
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Definition
| Powered by the combined No.1 and No. 2 hydraulic systems, the flaps are of a Fowler High - Lift type. |
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Term
| Flight Controls/ Surfaces - Ailerons |
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Definition
| Used to move the aircraft about the latitudinal axis. |
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Term
| Flight Controls/ Surfaces - Rudder |
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Definition
| Used to move the aircraft about the vertical axis. |
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Term
| Flight Controls/ Surfaces - Elevators |
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Definition
| Used to move the aircraft about the lateral axis. |
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Term
| Flight Controls/ Surfaces - Trim Tabs |
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Definition
| Trim tabs enable the pilot to neutralize any unbalanced condition that might exist during flight, without exerting any pressure on the yoke or rudder pedals. |
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Term
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Definition
| comprises of two main gears and the nose gear. Each gear consists of dual wheels and forward-retracting struts. The gear is designed so that the weight of the aircraft on the gear keeps it down and locked. |
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Term
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Definition
| Absorbs the shock that otherwise would be sustained by the aircraft structure during takeoff and taxiing, and landing. |
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Term
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Definition
| Four multiple-disc brake assemblies, one for each main gear wheel, are mounted on the strut side of each main gear axle. |
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Term
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Definition
| Equipped with 36 ply tires, the wheels are made from either aluminum or magnesium alloy. |
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Term
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Definition
| Two independent 3,000-psi hydraulic power systems operate the hydraulic equipment on the aircraft. (Designated system No. 1 and No. 2) |
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Term
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Definition
| The three main hydraulic pumps are Vickers electric motor-driven, variable displacement type. Each pump has a maximum usable output of 8 gpm, 2 gpm are tapped off the pump and used for motor cooling. At 1,800 psi, a low-pressure warning is initiated. |
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Term
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Definition
System no. 1 - is powered by two AC motor pumps, each which is capable of operating all of the hydraulic units in the aircraft. With a maximum of 5.6 U.S. gallons with an empty brake accumulator or 5 gallons with a fully charged accumulator; the reservoir serviced if the level falls 0.8 gallons.
System No. 2 - is powered by one AC motor pump, and fluid is supplied from a 1-gallon reservoir. Hydraulic pressure from this pump is used to assist in operation of the wing flaps, bomb bay doors, ailerons, rudder, and elevators booster units, all of which receive pressure from both systems. This system must be refilled if it falls below one quart. |
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Term
| Hydraulics - Booster Assemblies |
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Definition
| The booster system is designed so that the pilot has a normal feel of control forces when hydraulic pressure is available to the booster cylinders. |
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Term
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Definition
| The actuators unit transforms hydraulic fluid pressure into mechanical force, which performs work. |
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Term
| Airframe Components - Forward Radome |
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Definition
| Concical shaped fiberglass structure weighing 150 pounds.This structure houses the forward radar antenna, ESM components, IFF components, and two sensors for the missile warning system. |
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Term
| Airframe Components - Aft Radome |
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Definition
| A fiberglass structure used to house the aft radar antenna, the MAD equipment, and two sensors for the missile warning system. |
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Term
| Airframe Components - Bomb Bay |
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Definition
| The bomb bay is located under the belly of the aircraft aft of the nose gear. It is used to transport weapons and cargo. |
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Term
| Cabin Pressurization System - Engine Driver Compressors (EDC) |
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Definition
| The P-3 has two EDC's one to supply air to each of the two air-cycle cooling systems. They are single-stage centrifugal air compressors with fully automatic controls. |
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Term
| Cabin Pressurization System - Cabin Exhaust Fan |
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Definition
| Used to draw cabin air through the electronics compartment. Cabin exhaust fans must be operating to allow power applications to the SASP (single advanced signal processor) system. |
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Term
| Cabin Pressurization System - Out Valve |
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Definition
| Used to draw in air, and duct it overboard to control pressurization. |
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Term
| Fire Extinguishing System |
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Definition
| The P-3 is equipped with two independent, electrically controlled, High Rate of Discharge (HRD) fire extinguishing systems for a total of four HRD bottles, two on each side located forward of the fire wall in the inboard engine nacells. The bottle is filled with 10.5 pounds of bromotrifluoromenthane and is charged to approx. 600 psi with nitrogen. |
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Term
| Auxiliary Power Unit (APU)Fire Extinguishing System |
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Definition
| At a temperature of 400 degrees (F), the warning light will glow, flights station and cabin warning horns sound and the APU shuts down. When the intake and exhaust doors close, the fire-extinguishing agent automatically discharges. |
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Term
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Definition
| Seven portable oxygen bottle are stowed at the tactical stations except stations 9 & 10, whose bottles are located at the aft end of the sonobuoy storage bins. With the regulator set at 100% oxygen you get any where from 22 to 5 min depending on the persons exertion level. |
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Term
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Definition
| Oxygen systems designed to supply an active flight crew of three with approx. 3.5 hours at an altitude of 25,000 feet. Supplied from three high-pressure 1,800-psi bottles through three regulators, one for each flight crewmember. |
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Term
| State the purpose of the aircraft foul weather system. |
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Definition
| Ice control systems on the P-3 enable the aircraft to perform its missions under various weather conditions and return home safely. |
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Term
| Foul Weather Systems - Ice Detectors |
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Definition
| Probe mounted on the lower starboard side of the fuselage, just aft of the nose radome. Provides an indication in the flight station that structural icing conditions exist. |
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Term
| Foul Weather Systems - Engine Ice control |
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Definition
| The engine anti-ice systems uses the 14th stage bleed air to prevent ice formation on the engine air scoop, torque meter shroud, and compressor inlet assembly. |
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Term
| Foul Weather Systems - Propeller Ice control (Prop De-ice) |
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Definition
| Electric heating elements are used to anti-ice and de-ice the propellers. Continuous heat anti-icing is applied to the front spinners and the propeller blades cuff, aft spinner, and islands are cyclically heated (de-iced), one propeller at a time |
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Term
| Foul Weather Systems - Wing De-ice |
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Definition
| 14th stage bleed air is used to remove ice from the wings leading edge. |
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Term
| Foul Weather Systems - Empennage Ice Control (EMP De-ice) |
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Definition
| Portions of the horizontal and vertical stabilizer leading edges are electrically heated in a system that simultaneously anti-ices a series of parting strips while momentary heating power is applied sequentially to deice 20 cycling strips. |
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Term
| Foul Weather Systems - Windshield Heating |
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Definition
| The three forward windshield panels are electrically heated to prevent icing. The heating circuit is cycled off when the temperature reaches a preset maximum (regardless of High or Low selection) and comes on when the temperature drops to a preset minimum. |
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Term
| Foul Weather Systems - Windshield Wipers |
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Definition
| Has two speed selections and is controlled individually by the pilot and co-pilot. |
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Term
| Foul Weather Systems - Pitot Heat |
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Definition
| Two pitot tubes are mounted symmetrically on either side of the lower fuselage, just aft of the nose radome. Each Pitot tube is anti-iced by an integral heating element. |
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Term
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Definition
| Anti- Icing refers to a system that prevents ice formation. |
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Term
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Definition
| De-icing refers to a system that removes ice build up. |
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Term
| What are the three methods of generating air conditioning? |
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Definition
1) EDC's
2) Air Conditioning Cart
3) Air multiplier |
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Term
| What type of aviator's breathing oxygen is used on P-3 aircraft? |
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Definition
| Aviator's breathing oxygen (MIL-o-2721 OD) is supplied in two types I and type II. Type I is gaseous oxygen and type II is liquid oxygen. |
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Term
| What is the operating pressure of the hydraulic system? |
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Definition
| 2960-3200 psi normally 3000 psi |
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Term
| What are the safety precautions pertaining to opening the forward and aft radomes? |
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Definition
| The forward and aft radomes shall not be opened when winds are gusting or when wind velocities exceed 20 knots. |
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Term
| What effect does HRD extinguishing agents exposure have on personnel |
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Definition
| Trifluorobromomethane is non-toxic but is dangerous to personnel because suffocation exist, like carbon dioxide, it replaces oxygen when inhaled. |
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