Exam 1 Add Flashcards

1
Q

Define autorisation

A

No engine power supplied
Main rotor driving by relative wind only

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2
Q

Prevent RPM rotor speed during auto

A

Overspeed trip: raise collective

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3
Q

Recovery settling with power

A

Increase a/s with cyclic
Reduce collective pitch as altitude permits

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4
Q

Simultaneously conditions required for settling with power

A

Vertical descent 300 FPM
the engine must be using 20-100% power
A/s less than ETL

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5
Q

Define settling with power

A

A condition of powered flight in which the helicopter settles in its own downwash

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6
Q

Where is lift produced?

A

Outside the tips

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7
Q

Most general stall in aviation

A

Is exceeding the critical angle of attack

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8
Q

Contributing factors to both retreating blade stall and excessive coning

A

High GW
High G maneuvers
Low rotor RPM
Turbulence

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9
Q

Symptoms of retreating blade stall in a single rotor helicopter

A

Violent pitch up of nose
Rolling to the left

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10
Q

Recovery procedure from retreating blade stall

A

Reduce collective pitch
Regain control of the a/c

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11
Q

Operating at what speed is most likely to produce retreating blade stall

A

Excessive airspeed

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12
Q

Which control input is required to recover from dynamic rollover on level ground

A

Smooth, moderate collective reduction

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13
Q

Dynamic rollover occurs due to combinations of two factors

A

Human
Physical

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14
Q

Peak wind

A

Must be blowing more than 25 kts
Right of rmk

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15
Q

Varying

A

60 degrees or more
Greater than 6 kts

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16
Q

TAF

A

Meters

17
Q

9999

A

7 SM or greater

18
Q

Prevailing visibility metar

A

Fractions or whole SM

19
Q

Stations pressure conversion:
SLP 167
SLP 825

A

1016,7 mB
982,5 mB

20
Q

Altimeter setting

A

Always xx . xx
In Hg

21
Q

Weather includes

A

Vertical precipitation
Horizontal obscurations
NSW

22
Q

Increase density
Lower DA
More lift

A

Pressure - High
Temp - Low
Humidity - Low

23
Q

Decrease density
Higher DA
Less lift

A

Pressure - Low
Temp - High
Humidity - High

24
Q

What causes blades to loose lift at 3 o’clock

A

Induced flow increases, AoA decreases

25
Q

What causes blades to increase lift at 9 o’clock

A

Induced flow decreases, AoA increases

26
Q

TAF includes

A

Lift and Drag

27
Q

Total force includes

A

Lift and Thrust

28
Q

List four methods used to overcome translating tendency in a single rotor helicopter

A

Rigging of the cyclic
Rigging of the mast
Left cyclic
Automatic flight control/stability argumentation system

29
Q

5

6

A

5 - turbulens

6 - icing