Flight Controls Flashcards
What is manual reversion as it refers to the flight controls and which flight controls can function in manual reversion?
The ailerons and rudder are normally assisted hydraulically. Manual reversion is the actuation of the aileron and/or rudder without hydraulic assistance.
True/False. The flaps are powered by DC power.
True, the two flap motors responsible for flap actuation are DC powered.
What flap settings may be used for normal landing procedures in the EMB- 135/145?
Flaps 22° and Flaps 45°
When will the ground spoilers open automatically?
When the airplane is on the ground, with wheel speed >25 knots and a low TLA.
The EICAS message “FLAP LOW SPEED” is a result of a loss of __________.
One of the flap motors. Flaps are moving slower than usual.
True/False: The gust lock prevents the movement of the ailerons.
False, the gust lock restricts the elevator from moving.
The EICAS caution message “RUDDER OVERBOOST” means?
Both rudder systems hydraulic actuators are pressurized above 135 KIAS. Rudder hydraulic system 1 was not automatically deactivated above 135 KIAS. The QRH should be utilized.
True/False: The speedbrakes will not open if the flaps are extended to flaps 22°.
True. The criteria for speedbrakes are:
- Lever in open position
- Low TLA
- Flaps: 0 – 9º
True/False: ExpressJet allows takeoffs to be made with flap 22° selected.
True. Flaps 9, 18, and 22 are the approved takeoff flaps settings for ExpressJet aircraft however Flaps 22 takeoffs may not be conducted in the XR models.
What are the requirements for the speedbrakes to be open?
The flap lever must be at 0° or 9°, the speedbrake lever must be selected to OPEN, and a low TLA.
True/False: Pitch trim is accomplished by positioning the horizontal stabilizer.
True, by positioning the horizontal stabilizer.
How should the electromechanical Gust Lock be unlocked?
To unlock the elevator:
- Release the gust lock lever to the intermediate position.
- The GUST LOCK indication lights will illuminate during pin movement and extinguish when unlocked.
- After approximately 10 seconds, the locking pins will open and the elevators will be unlocked.
- When the GUST LOCK indication lights are extinguished, pull the control column backwards to any position between neutral and full nose up.
- Move the gust lock lever from the intermediate position to its full forward FREE position.
- The First Officer’s hand must remain on the Gust Lock during the entire unlocking procedure (e.g. do not continue the Before Takeoff flow with the Gust Lock in the intermediate position)
How should the Flight Controls be Checked Prior to Takeoff?
Check full movement and freedom of the ailerons. Ten seconds after the gust lock is positioned to the full forward (FREE) position, move the control column to the full up (aft) stop, the full down (forward) stop, and back to the full up stop position. This check must be performed each time the gust lock is set to the FREE position.
What kind of pitch trim protection do we have?
If any of the switches are held for more than 3 seconds
• The system stops trimming and sounds an aural “TRIM”
When only half the switch is actuated for more-than 7 seconds:
• That switch is ignored until the airplane is de-powered
Mach trim function (EMB-145XR only)
• If the aircraft exceeds MMO by a certain amount, 3 seconds of nose-up trim is commanded and the autopilot (if coupled) disengages
Can you utilize the gust lock in flight?
No, when airborne, the system is de-energized to prevent gust lock lever movement and inadvertent actuation.
