DA42NG Flash Card Data - Layer 1 CSVUTF8
VSO
Stall Speed Landing Configuration - 62 KIAS
VS1
Stall Speed - Flaps Up - 69 KIAS
VMC
Flaps Approach
Minimum Control Speed, Flaps Approach - 73 KIAS
VR
(Flaps Approach)
Rotation Speed - Flaps Approach - 76 KIAS
VR
Clean
Rotation Speed - Flaps Up - 80 KIAS
VX
Flaps Approach
Best Angle of Climb - Flaps Approach - 82KIAS
VYSE
Best Single Engine Rate of Climb - 85 KIAS
VY
Flaps Approach
Best Rate of Climb - Flaps Approach - 85 KIAS
VY
Clean
Best Rate of Climb - No Flaps - 90 KIAS
VFE
Full
Max Full Flap Extended Speed - 113 KIAS
VO < 3748 lbs
Operating maneuvering speed under 3748 lbs - 112
3748 < VO < 3968
Operating maneuvering speed between 3748 and 3968 - 119
VO > 3968
Operating maneuvering speed above 3968 = 122 KIAS
VFE
Approach
Max speed for flaps approach 133 KIAS
VFE
Full
Max speed for full flaps - 113 KIAS
VNO
Maximum structural cruising speed - 151KIAS
VLOR
Maximum Landing Gear Operating - Retraction - 152 KIAS
VLOE
Maximum Landing Gear Operating - Extension - 188 KIAS
VNE
Never Exceed Speed - 188
Max Demo X-Wind Flaps Approach
20 Knots
Max Demo X-Wind Flaps Up
25 knots
What material is used to construct the airframe and flight controls?
GFRP - Glass fiber reinforced plastic (polymer)
What material is used to construct the main bulkheads?
CFRP - Carbon fiber reinforced plastic (polymer)
What is the DA42’s wingspan
44’ 6”
How are the ailerons, elevator and rudder actuated?
Control Rods
Does the DA42 have elevator and rudder trim?
Yes. Elevator trim is controlled by a trim control wheel between the seats and a split switch (arm and control) on the stick. Rudder trim is cable actuated by use of a knob beneath the center of the console.
Why is lightning protection required on the DA42?
Because the composite materials are poor conductors of electricity. As such there is no efficient way for the fuselage to dissipate the energy from a lightning strike, increasing the risk of serious structural damage. The lightning protection system provides a highly conductive path to transfer the energy away from the structure.
What is the elevator friction damper and why is it needed?
It prevent aerodynamic flutter in the event elevator trim cable loses function or breaks (FOM p 23)
What does the variable elevator backstop do and how is it actuated?
It’s design to reduce the likelihood of a stall during a go around by limiting the up elevator deflection to 13° (normal is 15-1/2°). Actuated through an electronically driven linear actuator activated by extending flaps or power on both engines exceeding 20%.