SAAB 340B Flight Controls Flashcards
How are the primary controls operated?
Mechanically
How are the trims operated?
Electrically
How are the flaps operated?
Hydraulically
What joins the ailerons together?
Aileron Interconnect unit
What makes up the Interconnect unit?
A friction device to hold the two ailerons together
How can the ailerons be reconnected after the roll disconnect has been pulled?
Only by maintenance on the ground
Which elevator trim moves when the yoke mounted trim switch is moved?
Both main and standby
What allows main and standby trims to operate together?
Pitch trim synchronizer
How are the main and standby trims separated?
By operating the Standby trim switches
Which side aileron trim is operated when main trim is used?
Left side
Which side aileron trim is operated if Standby trim is used?
Ride side
How are the Main and Standby trims tied together?
Pitch Rest button
How does the GUST LOCKS prohibit takeoff while engaged?
Power lever movement is restricted
If takeoff is attempted with the pitch trims outside the green arc what happens?
Master warning and CONFIG CWP
A stall warning is provided by what simultaneous indications?
Aural Clacker, Stick Shaker
At stall threshold what happens?
Stick Pusher activates
How much pressure does the Stick Pusher generate?
80 pounds of force
What lights will illuminate as the stick pusher activates?
PUSH 1 and PUSH 2 on both sides of panel
How is the Stick Pusher overridden?
Overpowering the 80 pounds of force
How is the Stick Pusher deactivated?
Reduce the Angle of Attack
How is the Stick Pusher deactivated?
Pressing the PUSHER DISARM button
Can the Pusher System be rest after deactivation by the flight crew?
No, maintenance action is required to reset
What angle does the Stick Pusher move the elevator to?
4 degrees nose down
When is the Stick Pusher inhibited?
On the ground
When is the Stick Pusher inhibited?
After takeoff for 7 seconds
When is the Stick Pusher inhibited?
Load factor less than 0.5 g
How long is the Stick Pusher sustained for?
As long as excessive AOA, Load factor less than 0.5 g
What does STALL FAIL CWP light indicate?
Faults detected in a stall warning/ident computer
What is the purpose of the rudder limiter?
Limits rudder travel at high speeds
What are the speeds and travel limits of the Rudder Limit system?
Full travel (up to 30 deg) 150 KTS
What are the speeds and travel limits of the Rudder Limit system?
Intermediate travel (up to 15 deg) 150-200 KTS
What are the speeds and travel limits of the Rudder Limit system?
Minimum travel (up to 5.7 deg) above 200KTS
What is the purpose of the RUD LIM OVRD switch?
Allows full travel by retracting limiter mechanism
What kind of flaps does the aircraft have?
Single panel Fowler
Each flap is operated by a single hydraulic actuator which incorporates what fail-safe design?
Prevents flap retraction if hydraulic pressure fails, but will permit blow-back during excessive airspeeds in order to prevent flap damage
What keeps flaps from split flap condition?
Mechanical interconnection
What are the flap detent settings?
0, 7, 15, 20, 35 degrees
What is indicated by a FLAPS CWP light?
Electrical fault in flap control system
What is indicated by a FLAPS CWP light?
Sustained disagreement with left flap and handle
What is indicated by a FLAPS CWP light?
Flaps test switch activated
What position does the Gust lock fail?
Disengaged
Amber GUST LOCK light?
Rudder gust lock remains engaged after GUST LOCK handle is released
Is the Rudder gust lock electric or mechanical?
Electrical
How must the rim switches be operated?
Both switches must be moved together
Which pitch trim switches override the other?
Captain overrides FO
What does the CONFIG CWP light indicate on T/O?
Pitch trims out of green arc
What does the CONFIG CWP light indicate on T/O?
Condition Levers not Max
What does the CONFIG CWP light indicate on T/O?
Flaps beyond 15 deg
Are the aileron and elevator gust lock electric or mechanical?
Mechanical
What settings are the gates located on retraction?
7 and 20 degrees
What is being checked when the stall test switches are both pushed down?
.5 g sensor, pusher does not activate
When testing stall system what is being checked?
PUSH lights
When testing stall system what is being checked?
Aural Clacker
When testing stall system what is being checked?
Stick shaker
When testing stall system what is being checked?
Both switches up, stick pusher and PUSH 1 and 2
When testing stall system what is being checked?
Both switched down, pusher does not activate
