Blade Fold Wing Stow Flashcards
In case of hydraulic pressure loss or a sequence time out occurs, select __________ after determining there are no other faults and continue task.
retry
The rotor positioning unit is a/an __________ controlled rotary drive unit.
Electrohydraulic
The rotor positioning unit is mounted to the __________.
MWGB
The blade fold control unit is mounted on the __________.
Central De-ice Distributor
The un-commanded rotation is not electrically controlled and can only be stopped by removing__________.
No. 3 Hydraulic pressure
If a BFWS fault OID is displayed, do not select override until the problem __________.
Is determined
Prior to releasing the BFWS switch, what must you observe on the MFD?
Sequence complete.
How many Wing Lockpin cat’s eyes are on the CV-22?
4.
Engaging the wing lockpins will cause bearing damage due to increased forward CG load in which position?
Airplane Mode.
What type of inspection is due on the BFWS system after 5, 10, 25, 100, 500, 1000 Cycles?
Adjust Wing Stow Cable Tension.
Upon completion of a wing stow, what must the maintainer do?
Verify the cat eyes.
The components of the Blade Fold System consist of the __________ and the __________.
Rotor Positioning Unit/Blade Fold Control Unit.
Hydraulic power for capstan drive and lock pin actuation is provided by the __________ system and controlled by __________ through utility ________
No. 3 utility Hydraulic System/Flight Control Computer No. 3/Isolation valve
What degree azimuth angle, measured about the wing centerline, does the rotor positioning unit position the red blade for Blade Fold/Wing Stow?
7 Degrees.
What major component of the wing stow system provides force to the cable assemblies to cause the flex ring to rotate?
Capstan drive.
The BFWS system shall not be operated in winds greater than __________.
45 Knots
__________ are incorporated to prevent in-flight coupling and locking of the R.P.U.
Interlocks
The wing interface unit is a related component to the BFWS system. It provides the __________/__________ between the __________ and the advanced mission computer.
Electronic Command/Status/Wing Stow Control Module.
The BFCU controls and sequences the operation of the blade fold assembly by responding to the signals from the __________, by responding to inputs from the __________ __________ and by controlling the __________.
Mission Computer/status interface/stow control module.
What three things must you have before wing stow is available?
Weight on wheels, ECL’s at off, RPM at 0.
There are __________ blade latch sensors, __________ blade fold sensors, and __________ pitch lock pin sensor(s) per hub.
6/2/1.
What determines and continuously monitors the current configuration of the proprotors, nacelles, flaperons, and wing during Blade Fold/Wing Stow operations?
Advanced Mission Computer.
There are __________ shear pin monitors per hub. They are a __________ device that is mounted on the planetary assembly. The shear pin monitor senses __________ and __________ the blade actuator assembly.
six/Electromechanical/System Jam/Prevents Overloading.
Uncommanded wing rotation may occur when the BFWS switch is released. The uncommanded rotation is not electronically controlled, and can only be stopped by __________ from the aircraft. If uncommanded wing rotation occurs, remove __________ immediately. Failure to comply may result in aircraft damage or personnel injury.
removing system 3 hydraulic power/system 3 hydraulic power
