POF Final PTSD Flashcards
(47 cards)
What is the ideal gas law
P/density x T
How do you remember the ideal gas law
P/RhoTe (pirate)
What do you do for buffet onset boundary questions
M=0.80 is correct ANYTHING else isn’t
Equation for take off where downwash is least
1/2 wingspan x 3.28
Equation for landing where downwash is most
2 x wingspan x 3.28
When V is doubled what happens to parasite drag
Multiply by 4
Upon extension of a wing spoiler AOA is constant. What happens to Cd and Cl?
Cd increase
Cl decrease
What is lift caused by on the aileron
The lower pressure on the upper surface
What is total drag is 2 dimensional flow
PS2
What is total drag in 3 dimensional flow
PSI3
What does dihedral and anhedral do lateral stability
Dihedral increases it
Anhedral decreases it
How can aircraft always have positive longitudinal stability
CG must be ahead of the neutral point
Dorsal fin and ventral fin remember
DPP
VPN
What happens to stick force stability when on the aft limit
Lower and positive
What does SGA mean
Slipstream: on take off but tail on ground
Gyroscope: on rotation tail in the air
Assimetric: blade effect in air
Differentiate VMCG VMCA VMCL
VMCG: ground
VMCA: in the air
VMCL: landing
What is VMC the same as
VMCA
Induced drag is proportional to
Mass
Where is ground effect greatest
Wing tip
What will flaps do to CL MAX and AOA
CL MAX: increase
AOA: reduce
What will leading edge devices do to AOA and CL MAX
Increase both
What is the relationship between temp and LSS
Proportional
Above the tropopause what happens to TAS
Remains constant
What happens when an aircraft accelerates into the transonic speed
AOA decrease due to compressability
