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AS350B2 > AS350 Training Manual and Eurocopter Power Point > Flashcards

AS350 Training Manual and Eurocopter Power Point Flashcards

1
Q

What is the purpose of the strake down the right side of the tail boom?

A

The strake improves tail rotor efficiency

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2
Q

How many modules are in the MGB?

A

Three

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3
Q

What is an airworthiness directive?

A

Regulations issued by the FAA to correct an unsafe condition in an aircraft, aircraft engine, propeller, or appliance

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4
Q

When is an airworthiness directive issued?

A

The FAA must determine that an unsafe condition exists in a product
And
That the unsafe condition is likely to exist or develop in other products of the same type design

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5
Q

Who has to comply with Airworthiness Directives?

A

No person may operate a product to which an AD applies, except in accordance with the requirements of the AD
The owner or operator of an aircraft is required to maintain the aircraft in compliance with all ADs

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6
Q

Immediate changes of the flight manual are implemented under what process?

A

Rush Revisions

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7
Q

Is the height-velocity envelope considered a limitation?

A

No

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8
Q

What is the tail boom and a large percentage of the body structure made of?

A

Aluminum alloy

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9
Q

What does the rigid box or hexahedron support?

A

Main gear box and rotor system

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10
Q

What is located within the hexahedron structure?

A

Fuel tank

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11
Q

At what speed does the asymmetrical vertical fin begin to offload the tail rotor?

A

40 knots

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12
Q

What items are incorporated into the AS350 to prevent the onset of ground resonance?

A

Hydraulic shocks for the fwd cross tubes
Flexible cross tubes
steel spring extensions on the rear of the landing gear

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13
Q

What 2 components attach the main rotor/main gearbox assembly to the airframe?

A

Suspension bars, which transmit lifting forces to the airframe

Diagonal suspension bar (“dog bone”), which absorbs longitudinal and lateral vibrations

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14
Q

What is the purpose of the engine/MGB coupling tube?

A

Acts as the forward engine mount and allows for misalignment of the engine and main gearbox

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15
Q

The engine to MGB driveshaft is attached on both ends with what?

A

Flex couplings (thomas couplings)

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16
Q

The MGB is comprised of how many modules and how many stages of reduction?

A

3 modules
2 stages of reduction

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17
Q

What indicating/monitoring devices are connected to the main gear box? (4)

A

MGBP warning light
MGBT warning light
CHIP MGB caution light
Sight glass

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18
Q

Does the MGB oil filter have a bypass provision?

A

Yes

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19
Q

Does the MGB oil filter have a bypass/clogging “pop out” indicator button?

A

No

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20
Q

The MGBP light illuminates below what pressure?

A

1 bar

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21
Q

The MGBT light illuminates above what temperature?

A

115 degrees celcius

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22
Q

Is the rotor brake hydraulically activated?

A

No

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23
Q

What are the correct NR speeds and time between brake applications for the rotor brake?

A

170 NR high winds
140 NR normal
100 NR recommended

5 minutes minimum between brakings

24
Q

One major advantage of the starflex main rotor hub is its “fail-safe” design. What is meant by the term “fail-safe”?

A

Deterioration occurs slowly and visibly

25
Q

What direction does the main rotor turn?

A

Clockwise

26
Q

What does the swashplate assembly move up and down the “stovepipe” via?

A

The uniball

27
Q

Is the main rotor blade symmetrical or asymmetrical?

A

asymmetrical

28
Q

Which components in the last assembly monitor NR speed?

A

The phonic sensor and wheel

29
Q

What components give the pilot an indication of NR? (2)

A

The NR gauge and the horn

30
Q

What components help to absorb vibrations from the three bladed main rotor system? (3)

A

The bi-directional suspension (dog bone)
Cabin resonatos
Rotor hub vibration absorber

31
Q

What is the forward drive shaft constructed of?

A

Stainless steel

32
Q

What is the rear long drive shaft constructed of?

A

Aluminum alloy

33
Q

How many stages of reduction are used in the tail rotor gearbox?

A

Single stage angle reduction

34
Q

What oil monitoring devices are used in the tail rotor gearbox? (2)

A

CHIP TGB light
Oil level sight glass

35
Q

What component allows a pitch change of the tail rotor blades?

A

The pitch change spider

36
Q

During pre flight or post flight inspection, how much “play” is permitted in the tail rotor pitch change links, from the pilots perspective?

A

None

37
Q

The tail rotor design is that of two blades attached to a single component. What is that component?

A

Fiberglass spar

38
Q

What motion does the tail rotor fiberglass spar experience during pitch changes?

A

Twisting

39
Q

What is the leading edge of the tail rotor blade protected by?

A

A stainless steel strip

40
Q

What components limit tail rotor blade coning?

A

Laminated half bearings (half shells)

41
Q

What is the purpose of the tail rotor “boss” weights?

A

To maintain the pitch of the tail rotor blades under hydraulically boosted conditions

42
Q

What caution/warning lights are monitoring the aircraft electrical system?

A

BAT, GEN, BAT T

43
Q

What gauges monitor the electrical system?

A

Voltmeter and ammeter

44
Q

What push buttons/switches are used to engage (or disengage) electrical systems?

A

EXT PWR/BAT
GEN
GEN RESET
MASTER SW

45
Q

Where is the electrical master box located?

A

floor of aft cargo area

46
Q

What is the difference in switch usage when starting the helicopter using an EPU vs the battery?

A

None

47
Q

What caution/warning lights will be illuminated for an EPU start as opposed to a battery start?

A

The BAT light will be illuminated

48
Q

When does the generator come online?

A

When the generator voltage exceeds the battery voltage by 0.5 volts

49
Q

What does the voltmeter display?

A

Priority voltage of the electrical system

50
Q

What electrical items will continue to operate if the MASTER SW is depressed to the ON condition?

A

NR
NG
Overhead map lights
ICS
Any optional equipment

51
Q

Will the helicopter start if the MASTER SW is depressed to the ON position?

A

No

52
Q

How many hydraulic servos are utilized in the AS350?

A

Four

53
Q

What are the separate aerodynamic functions of the four servos?

A

Right lateral (roll)
Left lateral (roll)
Pitch (longitudinal)
Tail (yaw)

54
Q

What is the upper rod end bearing of each main servo attached to?

A

Non rotating swash plate

55
Q

What is the lower portion (piston) of each main servo attached to?

A

Conical housing of the main gear box

56
Q
A

AS350B2 (3 decks)

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