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93 Cards in this Set
- Front
- Back
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What is the principle of inertia?
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A body at rest/motion will stay at rest/motion unless acted upon by an outside force
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What does acceleation mean?
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The rate of CHANGE of the speed and or velocity of matter with time.
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What does speed mean?
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Rate of movement in relation to time. (200MPH)
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What does velocity mean?
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Rate of movement in given time and direction. (200 MPH due south)
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Define Newton's 1st Law of Motion.
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Movement will continue until forced to stop.
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Define Newton's 2nd Law of motion.
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Less force means less speed.
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Define Newton's 3rd Law of motion.
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For every action there is an equal and opposite reaction.
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Define Bernoulli's principle.
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As the speed of a moving liquid increases, the pressure within the liquid decreases.
(Speed Pressure ) |
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1 knots equas how many MPH?
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1.1 MPH
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What does a wind warning for small craft mean?
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It is a warning for harbor and inland waters for winds of 33 knot or less.
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What does a wind warning of "storm" mean?
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That winds are 47 knots or higher are present for all water.
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What does a wind warning of "gale" mean?
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That wind conditions of 34-47 knots are present over all water.
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Describe the conditions of a tropical depression.
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Winds of 33 knots or less.
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Describe the conditions of a tropical storm.
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34-36 knot winds,
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Describe the conditions of a hurrican/typhoon.
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Winds of 64 knots or greater.
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Describe a thunderstorm warning.
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Storm conditions are present with 3 miles of airfield or the immediate area.
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What constitutes a warning of severe thunderstorm?
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Thunderstorms with gusts up to 50 knots and or hail of 3/4" in diameter.
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When will a tornado warning be issued?
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When a tornado is sighted or detected by radarin or by a warning area or if the potential is apparent.
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What is lift?
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Force that acts in an upward direction.
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What is weight?
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Force of gravity in downward direction.
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What is drag?
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Force that resists accelleration.
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What is thrust?
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Force that causes accelleration.
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Where is the longitudinal axis?
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imaginary line that runs from the nose to the tail.
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Where is the lateral axis?
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imaginary line that is parrallel with the wings.
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Where is the vertical axis?
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Imaginary line that funs from the top to the bottom of the A/C/
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Upon what axis does roll affect?
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Longitudinal axis.
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Upon what axis does yaw affect?
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Verticle axis.
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Upon what axis does pitch affect?
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Lateral axis.
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On a fixed wing A/C what are the primary flict\ght controls and what do they affect?
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Ailerons..........Roll.
Elevator..........Pitch. Rudder............Yaw. |
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On a rotary wing A/C what are the primary flight controls and what do they affect?
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Collective stick.......Roll.
Cyclic stic............Yaw. Lateral controls.......Pitch. |
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What is the purpose of the flap.
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Po\rovides extra lift.
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What is the purpose of the spoiler?
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Decreases lift.
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What is the purpose of the speed brakes?
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Reduces speed.
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What is the purpose of the slat?
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At lower speeds it increases controlof pitch.
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What is the purpose of the horizontal stabilizer?
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It provides stability of the pitch.
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What is the purpose of the verticle stabilizer?
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It provides stability of yaw.
Known as directional stability. |
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What is the purpose of the verticle stabilizer?
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It counteracts torque of main rotor by providing force in the opposite direction.
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What does the term "angle of attack" mean?
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It is the angle at which the fuselage meets airflow.
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What is autorotation?
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In helos it is the ablility to land safely without engine power by using reverse airflow through the rudder system to slow down descent.
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What are the 5 basic components of a hydraulic system?
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1) Reservoir
2) Pump 3) Tubing 4) Actuating unit 5) Selector valve |
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In a hydraulic system what is the purpose of the pump?
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Provides fluid flow.
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In a hydraulic system what is the purpose of tubing?
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Transmits fluid.
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In a hydraulic system what is the purpose of the reservoir?
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Holds fluid.
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In a hydraulic system what is the purpose of the actuating unit?
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Produces work from fluid pressure.
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In a hydraulic system what is the purpose of the selector valve?
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Selection direction of fluid flow.
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What are the 5 main components of a landing gear system?
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1) Shocks/struts.
2) Tires. 3) wheelbrake assembly. 4) Retracting/extending assembly. 5) Side struts/supports. |
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JP4 is never used where?
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Onboard ships.
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In a landing gear assembly, what is the purpose of the tires?
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Allows the A/C to roll on the ground.
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What is the FSR and FP of JP4?
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FSR....700-800FPM
FP.....-10f/-23c |
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In a landing gear assembly, what is the purpose of the shocks/struts assembly?
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Absorbs shock created from A/C landing.
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What fuel is the primary fuel used onboard ships?
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JP5
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In a landing gear assembly, what is the purpose of the wheelbrake assembly?
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It allows the A/C to stop/slow down and to prevent movement when parked.
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What is the FSR and FP of JP5?
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FSR....100FPM
FP.....140f/60c |
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In a landing gear assembly, what is the purpose of the side struts/supports?
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Provides lateral strength /support to landing gear.
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What is the NATO symbol for JP4?
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F40
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What fuel has a NATO symbol of F44?
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JP5
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In a landing gear assembly, what is the purpose of the retracting/extending mechanism?
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It extends/retracts the landing gear.
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What is the NATO symbol for JP8?
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F34
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What are the 5 basic parts of a jet engine?
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1) Intake.
2) Compressor. 3) Combustion chamber. 4) Turbine. 5) Exhaust cone. |
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What is the FSR and FP for JP8?
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FSR....100FPM
FP.....100f/40c |
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Describe a turbojet engine system.
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It projects a column of air to rear of engine at high velocity.
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How does icing affect A/C?
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Seizes cables and joints.
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Describe a turboshaft engine system.
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It delivers powerthrough a shaft to drive something besides a prop.
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When an A/C experiences icing what happens to lift and drag?
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Lift will decrease while drag increases due to increased weight and stalling speed.
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Describe a turbo prop engine system.
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It delivers propulsion by conversion of most of the gas energy into mechanical energy to drive a prop.
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JP4 is never used where?
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Onboard ships.
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Describe a turbofan engine system.
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It delivers propulsion by conversion of most of the cas energy to drive a duct enclosed axial-flow fan.
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What is the FSR and FP of JP4?
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FSR....700-800FPM
FP.....-10f/-23c |
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What is the purpose of an afterburner?
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Used to boost normal thrust rating during takeoff and combat maneuvuers.
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What fuel is the primary fuel used onboard ships?
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JP5
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What are the three hazards of jet fuel?
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Explosion of fumes.
Vapor inhalation. Toxic contact. |
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What is the FSR and FP of JP5?
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FSR....100FPM
FP.....140f/60c |
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What are the symptoms of vapr inhalation?
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Nausea
Dizziness Headaches Death |
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What is the NATO symbol for JP4?
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F40
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What is the purpose of NDI (Non-Destructive Inspections)?
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Provides testing methodes without affecting future use.
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What are 3 methods of NDI?
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Visual Inspections.
Magnaflux Inspection. (Ferrous Metal) X-ray. |
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When referring to fuels what does the acronym FP stand for?
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Flash Point.
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When referring fuels what does the acronym FSR and stand for?
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Flame Spread Rate.
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Flame spread rate is measured how?
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Feet Per Minute (FPM).
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What is the purpose of the airspeed indicator?
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Shows speed of A/C as compared to air surrounding it.
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What does the altimeter do?
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Shows height of A/C above sea level.
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What does the rate of climb show?
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Rate of climb/descent.
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What instrument shows A/C position as compared to planetary horizon?
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Attitude Indicator.
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What does the turn and bank indicator show?
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Correct execution of turns and banks.
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What is the purpose of the navigation systems?
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Directs pilot controls of course or positions.
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What are 2 examples of navigations systems?
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TACAN and LORAN.
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What does IFF do?
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It is an electronic method that an A/C uses radio waves to ID A/C or ships.
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What doeas RADAR do?
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It detects objects at distances further than can be seen.
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What is the Magnetic (Standby) Compass?
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A direct reading magnetic compass mounted on the instrument panel.
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What is the purpose of the communications systems.
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A method by which wireless communications to/from the A/C is accomplished.
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What is voltage (E)?
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What drives current.
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What is current (I)?
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The flow of electrons.
I increases and E increases but R decreases. |
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What is resistance (R)?
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The force that opposes current flow.
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