FNPT/DA42
DA 42
DA 42
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Flashcards
If the airplane is loaded heavier and aft of the reat CG limit, what happens with the VMC?
The Vmc is much higher
How you can solve the problem from one engine inoperative produced drg?
counter rotating engines
VSSE was ist das genau?
85 kts => a minimum speed for intentionally rendering one engine inoperative
VYSE
the speed which produces the greatest gain in altitude with one engine inoperative => 85 kts
VXSE
Best angle of climb with one engine inoperative => Only used for critical obstacle => Below V MCA
The single engine service ceiling?
max. density altitude at which the single engine best rate of climb will produce a 50 fpm rate of climb => 50 is necessary to maintain level flight for long periods in turbulent air
The multi engine service ceiling?
will produce a 100 fpm rate of climb => clean conf.
The single engine absolute ceiling?
max. density altitude the airplane is capable of attaining or maintaining => VXSE and VYSE are the same ==> Critical engine must be feathered
What happens when yyou are flying above the single engine absolute ceiling?
the aircraft will descend gradually to the density altitude equivalent of the single engine absolute ceiling => In turbulent descending to the service ceiling
Any increase in drag, whether parasite or induced must be what?
Must be balanced by the use of additional thrust => Any speed above VYSE during climb requires excess thrust and decrease the airplane's performance
What makes the bigest drag by an engine failure?
a windmilling propeller followed by full flaps, extended gear and the control deflections ==> Propeller should be feathered
Feathered?
blades can be rotated parallel to the airflow
What decrease performance further ?
any increase in density altitude and turns == Turns should be limited during single engine climb until reached a safe altitude => max. 15 degrees bank
Which are the most critical phases of multi engine ops
the T/O and the initial climb => in the event of an engine failure or partial power loss
Tolerances: Alt Normal
+/- 100 ft
Tolerances: Starting G/A at DH and Min. Descent Altitude
+50/-0ft
Tolerances: Tracking on radio aids
+/- 5 Grad
Tolerances: Headung generally
+/- 5 Grad
Tolerances: Heading Simulated OEI
+/- 10 Grad
Tolerances: Pitch max?
15 Grad Pitch
Tolerances: Speed AEO
+/- 5 kts
Tolerances: Speed OEI
+ 10 / -5 kt
Tolerances: MAx Bank 30 Grad und bei Vx Vy VYSE and VApp
max. 15 Grad Bank => If higher bank angle is requires add 5 KIAS
Corrections of altitude max.?
The rate of change should not exceed doubled deviation. => 100 ft Abweichung => max. 200 fpm
Corrections of heading
If you are 3 Grad off => 3 Grad Bank
Every Pitch change has to be accompanied by an adjustment in
Every Pitch change has to be accompanied by an adjustment in power
When you use rudder trim?
Normal set to neutral and is used mainly to compensate for asymmetric power
When you give 1 Grad Pitch, Power?
+ 3% Power => Pro Grad Pitch + 3% Power
Heading changes: Wie viel Bank?
Normally 25 Grad Bank if heading to go is higher than 25 Grad => Roll-out => Heading to go !!=> Back pressure in turns grösser als 20 Grad => Pitch + 1
3 Arten to climb?
1. Climb at constant speed (normally)
2. Climb at constant ,,Rate of climb" (ROC)
3. Climb with constant pitch attitude
=> for this modes of climb, engine power normally remains at a fixed setting (climb power)
2 Arten of descent:
1. Descent at costant ,,rate of descent" (ROD)
2. Descent at constant speed => Speed is held with small power changes (final approache)
Max. RPM beim Taxi bis all indications green
max. 1400 RPM
Climb within 1000 ft use max.
1000 fpm
Wann sagt man Approaching ?
Max. 1000 ft before reaching desired altitude
ROD ca.?
500 - 800 FPM
Holding Speed für Kategorie A and B aircrafts nach ICAO
170 kts => V p clean => DA42 110 kts
Procedures for steep turns 45 degrees:
1. Select a point on the neutral horizon at which to complete the turn
2. Hold speed = 115 KIAS + 60 % Load => 60% Load and during turn (ab 15-30 Grad) 65-70% load
3. Desired Angle of bank and hold => 1. Bank 2. + 2 Grad pitch
4. 15 Grad vor HDG => Roll-out
5. Coordinate ailerons and rudder to roll back => reducing power
What are unusual attitudes?
1. Bank more than 39 degrees
2. nose up and decreasing airspeed
3. nose down and increasing airspeed
==> Increasing scanning and including the STBY ATT to check if any instruments has malfuntioned
Unusual attitudes ==> Close to stall:
1. lower the nose + full power
2. speed increases, level the wings
3. pulling out of the dive
Unusual attitudes ==> Not close to stall:
1.stick forward
2. roll wings level
3. add power if necessary
