DA 40 Systems

Question 1

Construction

Answer 1

Composite

Semi monocoque or carbon reinforced plastic (CFRP)

Bulk heads = glass fibre reinforced plastic (GFRP)

Question 2

Total fuel capacity and useable fuel capacity

Answer 2

Total = 114lit 30USG

Useable = 106lit 28USG

Total imbalance = 34lit 9 USG

Question 3

Min flight mass

Answer 3

940kg

Question 4

MTOM

Answer 4

1280kg

2822lbs

Question 5

MZFM

Answer 5

1200kg

2646lbs

Question 6

MLM

Answer 6

1216kg

2681lbs

Question 7

Dimensions

Answer 7

Wingspan = 11.63m

Length = 8.06m

Height = 1.97m

Question 8

Max demonstrated x wind

Answer 8

25kts

Question 9

Max bank angle

Answer 9

Banks over 60* are prohibited

Question 10

Structural limitations (Gs)

Answer 10

+3.8g

-1.52g

Question 11

Total pressure from the pitot and static port is delivered to

Answer 11

ADC and s/by instruments

Question 12

Max weight in the baggage compartment

Answer 12

45kg/100lbs

Question 13

2 heating and ventilation systems

Answer 13

Heat exchanger in the engine nacelle providing warm air

NACA duct provides ambient air

Question 14

NACA inlet is located

Answer 14

Just under the wing root

Question 15

The cabin cooling system is made up of 3 parts

Answer 15

Aux power switch
Central unit 
Additional alternator (RH side of engine)

Question 16

Is the cabin cooling system connected to the electrical system

Answer 16

No, the additional alternator provides sufficient power

Question 17

To turn the cabin cooler on/off

Answer 17

To turn on - aux power ON, press the on/off switch

To turn off - reverse but wait 1 sec after switching the on/off switch off

Question 18

The aux power switch must be off during

Answer 18

T/o
L/d
GA 
Emerg/ abnormal ops procedures 
OAT is less than 10* (50*F) 
Above 10,000ft
During the use of the ADF

Question 19

Where is the fire axe located

Answer 19

Under the right hand seat

Question 20

Aileron fixed trim tab is located

Answer 20

Port aileron

Question 21

To remove power from the electric trim (trim runway)

Answer 21

Hold the autopilot disk button (red button)
Or
Pull the autopilot circuit breaker

Question 22

Flaps are operated by

Answer 22

Electrically by push rods

Left and right are mechanically interconnected

Question 23

3 flap posn and degrees

Answer 23

Up = 0*

T/o = 20*

L/d = 42*

Question 24

L/d gear is made out of

Answer 24

Spring steel struts

Question 25

The nose wheel is

Answer 25

Free-castering and spring loaded by an elastomer package

Question 26

To operate the park brake

Answer 26

Pump the brake to build pressure Select park brake to release while holding pressure on the brakes

Question 27

Austro E4-A engine

Answer 27

``` 4 cylinders Liquid cooled Common rail direct injection FADEC Turbocharged ```

Question 28

Max power + max cont power

Answer 28

Max power = 100% at 5mins, 2300RPM Max cont power = 92% at 2100RPM

Question 29

The lubrication system

Answer 29

2 independent systems for the engine and the gearbox Wet sump with an external filter and cooler

Question 30

Engine and gearbox oil capacities

Answer 30

Engine = 7 litres (5 is min) Gearbox = 2.1 litres - only serviceable by a mechanic Some oil loss is normal (.1 lit/hr)

Question 31

Gearbox oil system also operates

Answer 31

The variable pitch prop

Question 32

Gearbox oil is

Answer 32

SHELL SPIRAX GSX 75W-80 SHELL SPIRAX S6 GXME 75W-80

Question 33

Engine oil

Answer 33

Shell helix ultra 5W30/40

Question 34

Fuel is delivered to a common rail via

Answer 34

LP and HP fuel pumps Regulator/pressure relief valve controls the pressure Rail supplies HP fuel to the injectors

Question 35

Injectors are controlled by

Answer 35

ECU Excess fuel is returned via a fuel cooler

Question 36

The turbocharger uses

Answer 36

Filtered RAM air In case of engine trouble, alternate air can be selected by pulling the alternate air lever - drawing air from inside the cowling

Question 37

ECU FAIL CAUTION could be caused by

Answer 37

Sensor failures | Insufficient performance of air,fuel or electrical supply system e.g air filter icing

Question 38

The propeller is made of

Answer 38

Wood/composite construction with stainless steel edge

Question 39

ECUs control

Answer 39

Injectors CSU Rail pressure Waste gate

Question 40

Which fuel tank is main and which is auxiliary

Answer 40

``` Main = right Aux = left ``` Aluminium tanks in each wing Fuel must be drawn from the aux tank to be used in the main tank

Question 41

How many fuel pumps

Answer 41

2 parallel electrical LP fuel pumps 1 pump working at a time, when 1 fails then they switch When the ECU switches from A to B then the fuel pumps also switch

Question 42

4 sections of the electrical system

Answer 42

Power generation Storage Distribution Consumers

Question 43

Power generation

Answer 43

70a alternator - attached to the engine via a flat belt 2 x 12v, 7.2a batteries (ECU back up batteries)

Question 44

ECU backup batteries can provide backup power to the ECU for

Answer 44

30mins for ECU B Excite the alternators in case of a main battery failure

Question 45

ACU

Answer 45

Monitors and controls output of the alternator

Question 46

ALTN AMPS ALTN FAIL VOLTS LOW

Answer 46

ALTN AMPS = Output exceeds 70 amps ALTN FAIL = alternator has failed VOLTS LOW = engine bus voltage <25volts

Question 47

Main battery

Answer 47

2.4v 13.6ah Mounted behind the baggage compartment, on the right Connected to the HOT BATTERY BUS and BATTERY BUS Controlled by ELEC MASTER

Question 48

Additional battery supplies power to

Answer 48

Backup attitude gyro Flood light Controlled on the emerg switch 1hr only - not rechargeable

Question 49

Consumption of the battery bus 1

Answer 49

Starter heavy duty power | Battery bus 2

Question 50

Battery bus 2 consumption

Answer 50

ECU BUS Main bus Ess bus

Question 51

What provides a/c attitude and HDG info to the displays

Answer 51

AHRS | ADC processes pitot static and air temp info