Stall Warning/Gearbox/Coolant/General Flashcards
What are the Pitot-Static instruments?
Altimeter, VSI, ASI
What is the noise you hear when the Electric Master is switched on?
The electrically driven hydraulic gear pump activates for 5-20secs to restore system pressure
What performance class does EASA classify DA42?
Performance Class B
Gearbox Max temperature?
Max 120degC
What happens and should you do if the gearbox tempersture exceeds the max?
Greater than 120degC can lead to a total loss of power due to engine failure.
- > Reduce power on affected engine
- > Increase airspeed
What Gearbox oil is used?
Shell
Coolant Min and Max temperature?
Min -30degC
Max +105degC
What is the coolant freezing point?
-36degC
What Stall warning device is used?
Electrical flapper switch (lift detect vane)
Sounds before reaching critical angle.
Where is the stall warning device fitted?
LE of left wing
What does the Stall warning sound like?
Continuous audible warning just before critical angle.
Is the Stall warner heated?
Yes, by the Pitot heat switch
What does the Alternate static source sense?
Cabin pressure
What instruments receive pitot-static pressure?
ASI
VSI
Altimeter
How is the standby attitude indicator powered?
Electrically powered
Or Dry battery powered when Emergency switch ON.
What does TODA include?
Runway distance + clearway (50ft obstacle clearance)
What increases TODA? x5
Deviation from procedures Uneven runway High temperature Rain Unfavourable Wind
What does TORA include?
Runway distance
What increases TORA?
Wet ground
Formula to work out Gradient %
Gradient % = ROC(fpm) / TAS(KTAS) x 0.95
Average climb angle for 5.25% gradient?
3.0deg climb angle
400ft/min
For a safe landing, what should the available landing runway be?
Landing distance over a 50ft obstacle
What increases landing distance? x7
Poor maintenance condition Deviation from procedures Uneven runway High temperature Rain Unfavourable wind inc crosswind Wet ground
