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T-6B Hydraulic System 1
Terms in this set (40)
The primary flight controls are manually operated using a ___ linkage.
Name the primary flight control components?
ailerons, elevator, rudder
Name the secondary flight control components?
aileron trim surfaces, elevator trim tab, rudder trim tab, and a rudder trim aid device
What is the purpose of the elevator system?
Controls movement of the aircraft about the pitch axis
Ground adjustable trim tabs are..
located on each aileron, adjusted by maintenance personnel, and adjust for stick neutral trim input to controls.
The purpose of the rudder is to rotate the aircraft about the ___ axis?
List the parts of the rudder system
the rudder, two sets of rudder pedals, rudder cables, pulleys, bellcranks, tie rods, centering springs
where is the rudder trim switch located?
On the PCL in each cockpit
In the event of conflicting pilot aileron/elevator trim inputs, which cockpit trim switch has priority?
The rear cockpit
What are the functions of the Trim Aid Device?
assist in maintaining directional trim, reduce out of trim rudder forces, and maintain coordinated flight
If the gust lock is properly installed, how will the controls appear?
Ailerons neutral, rudder neutral, elevator down
What kind of hydraulic system does the T-6B use?
An engine driven, fluid pressurized system charged to 3000 +/- 120 psi
What are the components of the primary hydraulic system?
engine driven pump, power package, emergency system...
The primary hydraulic system operates the..
landing gear and main landing gear inboard doors, flaps, nose wheel steering, and speed brake
If there is a loss of engine power, the primary hydraulic system fails or a failure of the battery bus, the emergency hydraulic system is used to operate the___
landing gear, main gear inboard doors, and flaps
What is the operation and function of the emergency landing gear extension handle?
Pulling this handle will extend the landing gear regardless of the position of the landing gear control handle
During emergency operation the accumulator
provides hydraulic pressure without reliance on electrical power
True/False: The speed brake will only partially deploy using the emergency system
False: The speed brake is not operated using the emergency system
Which landing gear doors are operated hydraulically?
Main gear inboard doors
Airspeed for lowering gear either in primary or emergency system
An audible alarm will sound if
1) the gear handle is not down and there is weight-on-wheels
2) the gear handle is not down, PCL is below mid-range position, airspeed below 120 KIAS, and flaps are up or at takeoff
3) the gear handle is not down and the flaps are at LDG
What are the methods to steer the aircraft on the ground
differential braking, rudder, and nose wheel steering
During ground operation involving high taxi speed, nose wheel steering should ___ used, due to ___
not be; increased sensitivity
What is the primary purpose of the speed brake
Decelerate and/or increase your rate of descent without increasing your airspeed
The speed brake retracts if
1) moving flaps out of the UP position
2) moving the PCL to max power 3) if speed brake button is pushed
Takeoff flap deflection is how many degrees?
Landing flap deflection is how many degrees?
What are the functions of the takeoff flaps?
1) produces the greatest lift with least amount of drag
2) shortest takeoff distance
The UFCP is the primary means of system control functions including
communication and nav radio selection and tuning, nav waypoint entry, execution of pre-planned waypoints and flight plans
What are the components of the aieron system?
ailerons, control sticks, interconnect tube, push-pull rods, and bellcranks
What are the components of the elevator?
elevator, control sticks, interconnect tubes, bell cranks, elevator cables, downsprings, and bobweights
what do the downsprings do?
they are fit to the the elevator bellcranks and provide a balanced control feel
what does the bobweight do?
installed on the front control stick which increases stick forces as G-load on the aircraft increases to improve control feel and help prevent overstressing the airframe
What are the components of the rudder?
rudder, two sets of rudder pedals, rudder cables, pulleys, bellcranks, one push-pull tie rods and two rudder centering springs
What is the purpose of the Trim Aid Device?
Assist directional (yaw) trimming during airspeed and power changes
What are the components that go into the TAD?
What are the components for the flap system
Components: two flap selectors, two selector valves for normal operation, an emergency extension selector valve, flap actuator, flap torque, two flap position indicators
How flaps operate?
select flap switch, electric signal goes to electric selector valve in the manifold, pressure is released through hyd line to flap actuator, the flap actuator moves strut which rotates torque tube to selected setting
characteristics of normal operations for the flap system
normal hydraulic pressure is used for extension and retraction, emergency hyd pres is for emergency extension only.
What is the purpose of the nose wheel steering system components?
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