SAAB 340B Auto Pilot and Flight Director Flashcards
What does an amber RUD, AIL, EL annunciation on the EADI indicate?
Servoactuator overload
What does a Red AUTO TRIM on the CWP indicate?
Failure of the Elevator or Rudder autotrim system
What does a DCP light indicate?
Display control panel failure
What functions are lost with a DCP failure?
DH function, ability to change NAV course
What functions are not selectable from the Mode Select Panel?
GA, PTCH and ALTS
What is displayed when GA is pushed?
Heading hold and 6.4 deg nose up
What is GA mode programed for?
Single engine
What is the function of ½ bank?
Bank angle 27 to 13.5 deg in HDG and NAV
When is ½ bank inhibited?
During APPR mode after course capture - NAV mode capturing a localizer
What will cause the Auto Pilot to disconnect?
Switch off - Pushing AP disconnect button
What will cause the Auto Pilot to disconnect?
Switch off - Pushing either GA button
What will cause the Auto Pilot to disconnect?
Switch off - Using Main or Standby Pitch trim
What will cause the Auto Pilot to disconnect?
Switch off - A/P F/D failure
What will cause the Auto Pilot to disconnect?
Switch off - Stall warning
What warning is not overridden by the Auto Pilot disconnect?
Stall Warning
What performance does CLIMB mode give?
At least 100 fpm climb till stall speed
What are the three speeds for CLIMB mode?
High 180, Med 160, Low 140
What vertical mode is approved for climbing in icing?
IAS only
What does the NAV mode in white indicate?
NAV is armed
When in APPR mode can the FD command bars be cancelled?
No
How is back course selected on the FD?
ILS front course is set, auto displays BC - Silver is not approved for ILS BC
What indications are displayed on the EADI for Back course approach?
LOC upper left, VS upper right, BC replaces GS
While in GS captured, pressing the pitch wheel will do what?
Nothing, inhibits the pitch wheel
What is the flight advisory speed?
Airspeed based on altitude a medium A/C weight for best LRC
Where is the advisory speed displayed?
Upper right corner of EADI, ALT or ALTS captured
DR displayed in upper left while in NAV?
Dead reckoning
Will GS capture before LOC?
No
What indicated the YD has disengaged?
Left side EADI, Yellow box with YD
After takeoff when can the auto pilot be engaged?
500 feet or acceleration, whichever higher
On a LOC approach, when must the AP be disconnected?
Before going below MDA
On an ILS approach, when must the AP be disconnected?
Before going below 200 feet AGL
On an ILS approach, when must the AP be disconnected?
Before going below 500 feet AGL
When is the yaw damper not authorized?
Takeoff, Go-around, Landing
What two ways can the heading bug be moved?
HDG knob, Knob on AP panel
What is the difference with APPR and NAV mode on an ILS?
APPR will track GS, NAV will not
What is the purpose of the NAV L/R buttons on the glare shield?
Couples L or R nav source to FD’s
How is the NAV mode cleared?
Selecting HDG, APPR, GA
What basic modes are displayed after initial power up for the FD?
HDG and VS
