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46 Cards in this Set
- Front
- Back
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What does barometric altimeter read?
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Aircraft position above sea level
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Define resistance
-Basic unit of measurement? |
Opposition to current
-Ohm |
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What three avi systems make up flight controls?
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-Stability Augmentation System (sas)
-Stab -Digital Automatic Flight Control System (DAFCS) |
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What is the purpose of a CB?
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Protect circuits from over current condition
(short to ground) |
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What two gyros are in the displacement gyro?
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Vertical and Directional; mounted in multiple gimbals
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HSVD?
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Horizontal Situation Video Display
-Primary Flight Instruments Display |
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HUD?
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Heads Up Display
(Monocle attaches to NVG's that gives certain flight info) |
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5 main warnings before applying power?
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-Stab clear of personnel
-WOW CB closed -Switches off, Safe, or norm -Pwr cord not energized -Proper CB's closed |
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What is the purpose of IFF?
* What are the modes and what capability does the Sierra have? |
Receives or replies to signals from other aircraft.
-Sierra has respond only capability * 5 modes; 1-4 & C (4 is military only) |
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MFD?
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Multifunction Display
(Mission Display) |
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No. 2 Gen Controls: (2)
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-No. 2 AC primary bus
-AC monitor |
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DC battery supplies pwr for: (2)
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-dc essential bus
-apu for starting |
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What does a time domain reflectometer do?
(TDR) |
Identifies how far in feet a short or break is in a wire?
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DCU?
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Display control unit
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Define thermocouple?
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Junction of two dissimilar metals, produces voltage when heated
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What are two types of counter measures for the sierra?
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Chaff & Flare
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What is the basic principle of the doppler effect?
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The apparent change in Frequency of a received signal caused by motion between sender & receiver
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Define Hertz (Hz)
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# of cycles in a given period of time (frequency)
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How many generators are on the sierra?
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3, #'s 1 & 2 and APU gen
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Define Voltage (E)
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Difference of potential of two charges of interest
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What are the three indicators associated with the pitot-static system?
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Altimeter
Airspeed Indicator Rate of Climb indicator |
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Attitude indicator provides/ displays aircraft attitude also know as __________ _____________?
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Artificial Horizon
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FLIR?
-Definition -Mission |
Forward Looking Infrared System
-Provides real time infrared & day light imagery. (for missions such as: ) -Target detection/ recognition, sar, surveilance |
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ARI
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Azimuth Range Indicator
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DALS?
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Downed Aviator Locater System?
( picks up signal from pilots vest, also used as radio. PRC-112) |
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Alternating current is current which constantly changes _______, and _____ ______ at regular intervals.
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Amplitude; reverses direction
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What monitors battery voltage/ temp?
*What else does it do? |
Battery conditioner/ analyzer
* Contains circuit for battery recharging. |
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AC essential breaker supplies: (2)
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Flight Instrument & control loads
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The two primary AC Bus Breakers supply power to: (6)
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-armament
-heating -lighting -engine -instruments -radio |
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TDP?
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Tactical Data Processor?
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No. 1 Gen supplies controls: (3)
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-No. 1 AC primary bus
-AC essential bus -AC secondary bus |
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What is the range of High Frequency?
* over how many channels? |
2-29.9999 MHz
* 280K channels @ 100 Hz intervals |
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How does the TACAN work
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receives an UHF signal from a surface station (ground/shipboard) or aircraft & calculates magnetic bearing & slant range to that signal.
(big compass thing on flight display) |
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Where is the TACAN receiver/transmitter?
* where are the antennae? |
Transition compartment
(2nd shelf from top) * round one on nose (upper tacan) Hotdog by lower anticollision (lower VHF/UHF/TACAN) |
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ESM?
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Electronic Support Measures
-detects, classifies, locates, & tracks ext. radio frequency emitters. |
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DC power system has two AC-DC ________/________ _______ ______?
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Transformer/ Rectifier power converters
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What does the airspeed indicator measure?
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Difference between impact pressure & static pressure
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The AC monitor bus supplies power to: (1)
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Main Rotor blade de-ice
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What is the MWS?
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Missile Warning Set
(AN/APR-39A) -radar signal detecting set |
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AC secondary bus supplies: (2)
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-windshield anti-ice
-tail rotor blade de-ice |
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CDU?
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Control Display Unit
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What is the range of UHF & VHF?
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30.00 MHz- 399.975 MHz
(provided by 2 radios) |
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CSC?
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Communication System Control
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VSI?
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Vertical speed indicator
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What is the purpose of the GCU?
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Generator Control Unit
-monitor & regulate gen output -provide over/ under voltage protection -under frequency protection |
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define current (I)
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Electrons in a conductor/ circuit from (+) to (-)
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