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When landing gear retraction is completed, the landing gear is held in place by:

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On the ground, the landing gear lever is held in the DN position by an automatic lever lock. The lever lock can be manually overridden by pushing and holding the landing gear lever LOCK OVERRIDE switch. In flight, the lever lock is automatically released through air-ground sensing.

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During taxi and at each manual brake application, if wheel speeds are less than_____, the brake control system applies one-half of the brakes on each main landing gear.

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Truck Tilt Actuator for B787-8 and -9. The tilt actuator positions the gear for landing (forward wheels up) and for main gear retraction (forward wheels down). This means that when the gear is retracted the gear fits inside the main gear compartment.

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Touchdown and hydroplaning protection is provided using airplane inertial groundspeed. Locked wheel protection is provided using a comparison with other wheel speeds.

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If _____ after the normal transit time, the EICAS caution message GEAR DISAGREE is displayed.

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After retraction, the EICAS landing gear position indication changes to UP for _____ and then blanks.

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Selecting RTO (rejected takeoff) prior to takeoff arms the autobrake system. Maximum braking is obtained in this mode. If an RTO is initiated at or below_____, the RTO autobrake function does not operate.

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With the landing gear retracted and all doors closed, the landing gear hydraulic system:

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An EICAS advisory message, BRAKE TEMP, displays when any brake registers _____ on the gear synoptic display.

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An EICAS advisory message, BRAKE TEMP, displays when any brake registers 5.0 or higher on the gear synoptic display until all brake temperatures are below 3.0.

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Semi Levered Gear (SLG) for B787-10. To increase the angle of attack during takeoff the SLG Actuator is installed. The SLG actuator locks the main gear in place and this shifts the main gear rotation point to the aft wheels instead of the middle of the gear. The SLG actuator also positions the gear for retraction and landing. On landing the SLG actuator isn't locked.

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The brake temperature value _____ when invalid brake temperature data or faults are detected in the brake temperature system.

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Primary steering control is provided by a nosewheel steering tiller for each pilot. Limited steering control is available through the rudder pedals. The tillers can turn the nosewheels up to _____ in either direction.

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What hydraulic system powers the landing gear?

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Wheel brake temperatures are displayed on the GEAR synoptic display. Normal range values of 0 to 4.9 are white. For values of 3.0 to 4.9, the brake symbol for the hottest brake on each main gear truck becomes amber.

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For values of 3.0 to 4.9, the brake symbol for the hottest brake on each main gear truck becomes solid white.

Tire pressures are displayed inside each individual gear symbol on the GEAR synoptic. Normal values are depicted in white. Above or below normal range values are depicted in amber.

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Should a failure occur in the landing gear control system:

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The brake system is powered by _____ electric brake power supply units. The brake pedals provide independent control of the left and right brakes.

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Four Electric Brake Actuators (EBAs) are provided on each main landing gear wheel brake to control the application of braking force to the carbon disc.

What does this indicate?

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What does this indicate?

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The EICAS advisory message GEAR DOOR is displayed if any hydraulically actuated door is not closed after normal transit time.

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On ground, the EICAS advisory message AUTOBRAKE is displayed if the autobrake system is:

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The autobrake system provides automatic braking at preselected deceleration rates for landing and for rejected takeoff.

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The autobrake system provides automatic braking at preselected deceleration rates for landing and FULL PRESSURE for rejected takeoff.

Autobrake on landing - If MAX AUTO is selected, deceleration is limited to the AUTOBRAKE 4 level until pitch angle is less than_____, then deceleration is increased to the MAX AUTO level.

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The alternate landing gear extension system uses a dedicated AC powered electric hydraulic pump and center hydraulic system fluid to extend the landing gear.

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The alternate landing gear extension system uses a dedicated DC powered electric hydraulic pump and center hydraulic system fluid to extend the landing gear.

What does this indicate?

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The EICAS advisory message TIRE PRESS is displayed if any tire pressure is above or below normal range, or there is an excessive pressure difference between two tires:

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The RTO autobrake setting commands maximum braking pressure if:

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In–flight and ground operation of various airplane systems are controlled by the air/ground sensing system. The system receives air/ground logic signals from sensors located on the left main landing gear beam. These signals are used to configure the airplane systems to the appropriate air or ground status.

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The system receives air/ground logic signals from sensors located on EACH main landing gear beam. These signals are used to configure the airplane systems to the appropriate air or ground status.

The Boeing 787 is equipped with a retractable landing gear that is:

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What does this indicate?

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The rudder pedals can be used to turn the nosewheels up to _____ in either direction. Tiller inputs are summed with rudder pedal inputs.

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When the autobrake system disarms during takeoff, the AUTOBRAKE selector remains in the RTO position, but automatically moves to OFF after takeoff.

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When the landing gear lever is placed in the UP position the gear retraction sequence is started. The EICAS landing gear position indication display changes from a green DOWN indication to _____ in-transit indication as the landing gear retract into the wheel wells.

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Boeing 787 – Landing gear