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AS350B2 > LIMITATIONS > Flashcards

LIMITATIONS Flashcards

Operating Limitations.

1
Q

Types of operation approved?

A

By day and night in VFR.

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2
Q

Maximum permissible weight?

A

2250 kg (4961 lb)

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3
Q

CG datum location?

A

3.40 m forward of the main rotor head centre line.

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4
Q

Lateral CG LH limit?

A

0.18 m

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5
Q

Lateral CG RH limit?

A

0.14 m

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6
Q

Maximum speed?
VNE Power-ON

A

-155 kt at zero pressure-altitude.

-Higher altitudes, reduced by 3 kt/ 1000 ft.

-In cold weather 10 kt is subtracted from VNE when OAT is below -30℃.

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7
Q

Maximum speed?
VNE Power-OFF

A

-125 kt at zero pressure-altitude.

-Higher altitudes, reduced by 3 kt/ 1000 ft.

-In cold weather 20 kt is subtracted from VNE when OAT is below -20℃ without dropping below 65 kt.

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8
Q

Maximum substantiated pressure- altitude?

A

20.000 ft (6096 m)

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9
Q

Minimum temperature?

A
  • 40℃
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10
Q

Maximum temperature?

A

ISA + 35℃ limited to + 50℃.

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11
Q

Servo-transparency?

A

Prohibited.

Could lead to hazardous situation at low clearance from ground and particularly during right turn maneuver.

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12
Q

Flight in falling snow?

A

-When visibility is greater than 1500m

-Flight when visibility 800m to 1500m flight time is limited to 10 minutes.

-Flight when visibility is less than 800m flight in falling snow is prohibited.

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13
Q

Main rotor limitations?
Power ON

On the ground at low pitch &
In stabilized flight.

A

On the ground at low pitch
380 +/- 5rpm.

In stabilized flight 390 + 4/- 5 rpm.

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14
Q

Main rotor limitations?
Power OFF.

Maximum & minimum.

A

Maximum: 430 rpm

Minimum 320 rpm

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15
Q

The horn sounds when rotor speed is?

Below & above rpm.

A

Below 360 rpm (continious sound)

Above 410 rpm (intermittent sound)

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16
Q

Rotor brake limitation?

Maximum rotor speed for rotor brake application.

A

170 rpm

17
Q

Rotor brake limitation?

Minimum time between two consecutive brakings.

A

5 min

18
Q

Torque limitations?

Airspeed lower than 40 kt

Maximum transient & maximum
continuous torque.

A

Maximum transient torque (10 s)
107%

Maximum continuous torque 100%

19
Q

Torque limitations?

Equal to or higher than 40 kt.

A

Maximum continuous torque 94%

20
Q

Engine limitations?

Determined by which parts?

A

TURBOMECA “ARRIEL 1D1” engine.

Determined by:
Gas generator rotation speed (Ng)
Exhaust gas temperature (t4)
Free turbine rotation speed (Nf)

Heating and demisting is forbidden above engine maximum continuous rating (Ng or t4)

21
Q

Gas generator speed limitations?

Maximum transient rating
(less than 5 s)

Maximum takeoff rating (5 min)

Maximum continuous rating

A

Maximim transient rating
(less than 5s) Ng = 107.5% Ng=+6

Maximum takeoff rating (5 min) without P2 air bleed Ng= 0
With P2 air bleed Ng= -0,6

Maximum continuous rating= Ng 98% Ng = -3.5

NOTE: 100% Ng corresponds to 51800rpm.

22
Q

t4 temperature limitations?

Maximum engine starting

Maximum transient during starting

Maximum on takeoff

Maximum continuous

A

Maximum for engine starting 795℃

Maximum transient during starting (5 s max) 865℃

Maximum on takeoff 845℃

Maximum continuous 795℃

23
Q

Free turbine speed limitations?

Maximum continuous equivalent

Transientlimits (5 s max)
Minimum/ maximum

A

Maximum continuous equivalent 417 rpm

Transient limits (5 s max)
Minimum 330
Maximum 463

NOTE: Rotor speed of 394 rpm corresponds to a free turbine speed of 42452 rpm.

24
Q

Oil pressure limitations?

Minimum pressure above 85% Ng

Minimum pressure between 70% and 85% Ng

Maximum pressure outside starting sequence

A

Minimum pressure above 85% Ng
1.8 bar

Minimum pressure between 70% and 85% Ng
1.3 bar

Maximum pressure outside starting sequence
5 bar

25
Q

Oil temperature limitations?

Maximum

Minimum before power application

A

Maximum oil temperature 115℃

Minimum before power application 0℃

26
Q

Electrical system?

Normal voltage

Maximum voltage

Maximum current

A

Voltage should normally be between 26V and 29V.

Maximum voltage 31.5V

Maximum current 150A

27
Q

Landing and stopping on slopes?

Nose-up

Nose-down

Sideways

A

Nose up 10℃

Nose down 6℃

Sideways 8℃

28
Q

Restrictions?

A

Aerobatic maneuvers.
Engine starting when snow or ice accumulations are in or around air intake.
Flight in freezing rain or icing conditions.Engine power reduction in fight using fuel flow control except for autorotational training.

29
Q

Minimum crew & which seat?

A

One pilot, in RH seat.

30
Q

Maximum occupants?

A

Maximum number of occupants including crew: 6

31
Q

Engine starter/generator limitation?

A

first start failed -> cool 1 min -> CRANK (30s) -> cool 1 min -> start.

first start failed -> cool 1 min -> CRANK (30s) -> cool 1 min ->
2nd start failed -> cool 30 min -> CRANK (30s) -> cool 1 min -> start

32
Q

Loading limitations?

Rear cabin floor

LH forward cabin floor

Rear hold

LH hold

RH hold

A

Rear cabin floor 310 kg

LH forward cabin floor 150 kg

Rear hold 80 kg

LH hold 120 kg

RH hold 100 kg

AS350B2 (2 decks)

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