CHapter 27: Asymmetric Flight

Question 1

1/2 Prop Loss

What direction do you roll in?

Answer 1

For prop AC: wing with engine loss = less lift. Want to turn into live engine wing because it has easier time getting back to level with extra lift

Question 2

OEI Asymmetry Correction Method Inflight (2)

Answer 2

Wings level

Banking / wings down

Question 3

Wings level Method

What is? Advantages (3), disadvantages (3)

Answer 3

Correct engine asymmetry with rudder
\+: keep natural horizon
no rate of turn indicator
ball is central
-: D increase (already have 1/2 T)
fin stall
decreased rudder authority

Question 4

Banking / Wings Down Method

What is? Advantages (3), disadvantages (3)

Answer 4

Roll into live engine < 5°
\+: perf+, D-
increased rudder authority
reduced fin stall
-: disorienting
attitude indicator can reset -> roll more
symmetry ball indicator into live engine

Question 5

Vx with OEI

How does it change for prop, jet?

Answer 5

Prop: Vx increases
Jet: Vx decreases (more parasite drag)

Question 6

Critical Engine

Answer 6

dual RHP: left
because right produces more yawing moment

jet: engine into wind (TO only)
because adds yawing moment to sideslip on fin

Question 7

Minimum Control Speeds (3)

Answer 7

Vmc(a): minimum control (air)
Vmcl: minimum control landing / approach
Vmcg: minimum control ground

Question 8

Vmc(a)

Parameters used to determine (8)

Answer 8

Calculated at: Max T, aft CG, TO trim, Max SL TOM, critical TO conf (gear up), no ground effect, prop = feathered or most probable position, 5° bank

Question 9

Vmcl

Parameters used to determine (7)

Answer 9

Calculated at: go around T, critical CG, app trim, unfav. M, critical app conf, props: no pilot action, pick up dropped wing by 20°/5s

Question 10

Vmcg
Parameters used to determine (6)
Why not use Vmca instead?

Answer 10

Calculated at: Max T, unfav CG pos, TO trim, light/medium M, critical TO conf, 30’ deviation from center line

at TO, rotate around main gear -> smaller moment arm with fin -> less stabilizing

Question 11

OEI

When to abort and TO

Answer 11

OEI before Vmcg -> abort
OEI between Vmcg and V1 -> abort
OEI after V1 -> TO

Question 12

Vmcg

What makes it higher (2)

Answer 12

low alt
colder air
higher T -> more yaw