Term
| The Primary function of the compressor is? |
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Definition
| To provide the burner section with the proper amount of air. |
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Term
Inlet ducts are normally designed to
act as a ______ never a_________ |
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Definition
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Term
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Definition
| When the turbine temp comes up to normal and the compressor RPM stabilizes below normal. |
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Term
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Definition
| Turbine temp continues to rise while compressor RPM stabilizes below normal. |
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Term
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Definition
| When the max allowable temp for the turbine section is exceeded during start. |
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Term
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Definition
Normally on engine driven, gear type, pressure pumps
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Term
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Definition
| A fluids resistance to flow |
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Term
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Definition
Military Rated Thrust
Thrust at max turbine temp for a limited time. |
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Term
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Definition
Normal Rated Thrust
Thrust produced when at maximum continuous turbine temp with no time limit. |
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Term
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Definition
| Tank - Boost Pump - Pressure Gauge - Engine driven pump - FCU - Flow Gauge - Fuel/Oil Heat exchanger - Manifold |
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Term
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Definition
| Lowest temperature a combustable substance will ignite from the temporary application of a flame. |
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Term
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Definition
| Linkage from engine to generator so generator can supply a constant reliable output. |
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Term
| DC generators are reffered to as ________ and AC Generators are reffered to as ___________ |
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Definition
DC are Generator
AC are Alternators |
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Term
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Definition
| A device that takes mechanical movement and turns it into electrical energy. |
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Term
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Definition
| Converts fluid under pressure into mechanical motion. |
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Term
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Definition
| Pressure applied to a confined liquid is tranmitted equally in all directions without the loss of pressure and act w/ equal force on all surfaces. |
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Term
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Definition
Good Low altitude, slow speed, flight characteristics
High thrust @ low airspeeds
Good for lifting heavy loads
Cons
Heavier more complex aircraft
Limited speeds. |
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Term
| Propellar Assy Components |
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Definition
Pitch change/Dome Assy
Hub
Blades |
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Term
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Definition
Torqueometer
Reduction Gear Assy
Propellar |
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Term
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Definition
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Term
| Compressor Stall Indications |
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Definition
| RPM Decay, Possible Loud Noises, ITT Rise |
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Term
| Compressors Angle of Attack |
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Definition
| Angle between the relative winde and the rotor blade chordline. |
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Term
| 2 Main elements to an Axial Flow Compressor |
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Definition
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Term
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Definition
| Indicates the difference between inlet and exhaust flow |
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Term
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Definition
| Thrust when the aircraft is not moving and on the ground. Thrust solely from exhaust gases. |
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Term
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Definition
| Produces high energy airflow necesarry for thrust. |
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Term
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Definition
| As any incompressible fluid passes through a convergent opening its velocity increases and pressure decreases. |
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Term
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Definition
| Potential energy of fluid molecules at rest. |
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Term
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Definition
| Thrust which takes into account the velocity of inlet air. |
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Term
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Definition
| Screech Liner, Spray Bars, Flame Holders, Variable Exhaust Nozzle. |
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Term
| ______% of turbine energy is actually turned into thrust. |
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Definition
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Term
| ______% of turbine energy runs the compressor and accesories. |
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Definition
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Term
| In the turbine section, _______ come before rotors. |
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Definition
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Term
| In the compressor section ______ come before stators |
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Definition
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Term
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Definition
When fuel is introduced to the burner and fails to light initially but still has the capability to ignite.
Very Dangerous |
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Term
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Definition
Fuel - Oil Cooler
Air - Oil Cooler |
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Term
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Definition
| Shows oil temp prior to entering the bearing compartement. |
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Term
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Definition
| Supply and/or Scavenge. Can be one or seperate pumps. |
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Term
| 3 Subsystems of a dry sump system. |
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Definition
| Scavenge subsystem, breather subsystem, pressure subsystem. |
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Term
| Why is synthetic oil more advantages? |
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Definition
| Leaves less coking deposits, more stable at high temperatures. |
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Term
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Definition
Combat Rated Thrust
Thrust produced w/ afterburner in operation. |
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Term
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Definition
| Measurment of a liquids ability to convert to a vaporous state. |
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Term
| 4 Kinds of Electrical Busses |
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Definition
Essential - Flight Safety
Primary - Mission oriented
Secondary (or monitor) - Convenience circuits
Starting - Dedicated to starting the aircraft |
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Term
| Distribution Networkd (AKA) |
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Definition
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Term
| Primary use of the Battery? |
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Definition
| Starting and Emergency Power. |
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Term
| Transformer Rectifier - Defined |
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Definition
| An electrical device which transforms AC power into DC power |
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Term
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Definition
| An electrical device that turns DC power into AC power. |
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Term
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Definition
| Directs the flow of fluid. |
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Term
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Definition
| Allows for one way flow of a fluid. |
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Term
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Definition
| Thrust Specific Fuel Consumption - Amount of fuel it takes to produce one pound of thrust |
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Term
| Compressor Stall Avoidance |
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Definition
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Term
| 3 Main components of a Centrifigul Compressor |
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Definition
| Impellar, Manifold, Diffuser, (I.M.D) |
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Term
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Definition
| Axial, Centrifugal, Axial-Centrifugal |
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Term
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Definition
| Gauge for prop or rotor driven aircraft. - Indicates power available (SHP available) to drive the prop or rotor. |
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Term
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Definition
| Thrust with inlet airflow velocity taken into account. |
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Term
| In an engine - engineers often refer to dynamic pressure as? |
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Definition
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Term
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Definition
| Divergent - Pressure Decrease, Velocity Increase |
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Term
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Definition
| Convergent - Pressure Decrease, Velocity Increase |
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Term
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Definition
| Divergent - Pressure Increase - Velocity Decrease |
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Term
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Definition
| Convergent - Pressure increase - Velocity Decrease. |
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Term
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Definition
Net Thrust = M * Vfinal - Vinitial
t |
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Term
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Definition
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Term
| Dynamic Pressure (Defined) |
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Definition
| Fluids pressure/kinetic energy because of its motion. |
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Term
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Definition
| Total pressure = Static Pressure + Dynamic Pressure |
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Term
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Definition
| Displays engine speed. Calibrated in % RPM |
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Term
| 3 Sections of the Gas Generator |
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Definition
| Compressor, Burner, Turbine |
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Term
| 2 Basic Designs for Inlets |
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Definition
| Single entrance, divided entrance |
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Term
| 3 Types of Combustion sections |
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Definition
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Term
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Definition
| Turbojet, TurboFan, TurboProp, Turboshaft |
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Term
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Definition
| Simplest Gas Turbine, Light but has low efficiency at low speeds and long takeoff roll. |
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Term
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Definition
| Cross between turbojet and turboprop, adds additional thrust via fans that push bypass air. |
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Term
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Definition
| Turbines not connected to the compressor section specifically. |
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Term
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Definition
| Percentage of air bypassed around the gas generator rather than ducted through the gas generator. |
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Term
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Definition
| Gas Generator w/ a reduction gearbox driving propellars through the turbines. |
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Term
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Definition
Reverses blade angle to decrease ground roll.
Only for ground ops. |
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Term
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Definition
| Gas Generator where the turbine section drives an output shaft primarily for a helo rotor system. (All output is turned into SHP) |
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Term
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Definition
F=m*a
"Simply a push or a pull" |
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Term
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Definition
Force per unit area
(PSI in a hydraulic system) |
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Term
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Definition
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Term
|
Definition
A storage tank for the hydraulic system
Pressurized or non-Pressurized |
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Term
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Definition
| Pressure limiting device for safety. |
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Term
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Definition
AC & DC
Alternating Current / Direct Current |
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Term
Switches, Fuses, and Circuit Breakers
(Their Use?) |
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Definition
| Provide a manual and/or automatic control over the flow of electrical current. |
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Term
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Definition
| Auxilary Power Unit - Free's the A/C from being dependant on external power |
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Term
| Critical function of the boost pump? |
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Definition
| Prevent aeration in the fuel line. |
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Term
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Definition
Fuel Control Unit
"Brains of the fuel system." Meters fuel to the engine dependant upon PCL position, compressor inlet temp, RPM, Turbine Temp |
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Term
| 2 Types of Lubricating System |
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Definition
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Term
|
Definition
| Shows pressure of oil before entering the bearing section. Will indicate a failing oil pump. |
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Term
|
Definition
| Provides a bypass in the case the filter element becomes clogged. It allows oil to continue to be fed to the engine. |
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Term
| Oil Pressure Relief Valve |
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Definition
| Limits the Max Pressure w/in the system. |
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Term
| 2 Ways to Drive engine accesories? |
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Definition
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