Airframe Flashcards
What is the DA42 made of
GFRP, and CFRP is used for strengthening the airframe
what is the main difference between GFRP and CFRP
CFRP is more strong and rigid
How is the airframe assembled
a sandwich of 2 skins (GFRP/CFRP) and a core (rigid foam)
what type of fuselage is the DA42
Semi-monocoque structure
how is the wing center section attached to the fuselage
wing section is bolted to fuselage shells
center section has mountings for wings thru aft spar bridges, engine nacelles and main landing gear
What types of wings are the DA42’s, describe their construction
Cantilever wings w. semi monocoque structure
2 CFRP shells with foam core
2 I section spars with decreasing spar caps towards wingtip
aluminum fuel tank in each wing
44’ wingspan
describe the construction of the da42 stabilizer
top and bottom GFRP shells
front and rear spar
rear web houses elevator hinges
how is the da42 protected from lighting? (lighting system)
thru bonding of all metal elements to lightning conductors
system connected by longitudinal and lateral branch and metal elements connected with metal braiding and strips
how does the static discharge system work
removes electrostatic charge that builds on a/c surfaces
a/c surfaces covered in conductive filler which allows charge to flow to the discharge wicks
how many static wicks does the da42 have
7
