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AIRBUS H125 /AS350B3 / B3e > AIRBUS H125 / AS350B3 (2B1 Eng) Performance and Information > Flashcards

AIRBUS H125 / AS350B3 (2B1 Eng) Performance and Information Flashcards

1
Q

DISCLAIMER

A

This flash card study aide is provided to ease and assist in studying much more comprehensive material provided by Eurocopter / Airbus. The creator of this study aide accepts no responsibility for inaccuracies or abbreviation of procedures. This is intended to introduce the associated material and all persons using these cards should study and reference the officially distributed material from the manufacturer. It is recommended that after referencing each card, the student should independently verify the information on that card by looking it up and learning the comprehensive information from the direct source. If any inaccuracies, misleading or typo errors are found, please notify the administrator of the study deck.

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2
Q

MINIMUM BATT VOLTAGE DURING START PROCEDURE

A

22V

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3
Q

PROCEDURE IN CASE OF FAILED / ABORTED START

CRANKING

A
  1. Engine starting selector - OFF
  2. Emergency fuel shut-off lever - FORWARD
  3. Ng - CHECK below 10%
  4. [FUEL PUMP] - ON
  5. [CRANK] - PRESS for 20 sec. max
  6. [FUEL PUMP] - OFF

When starting the engine, the starter time is the time between selecting the engine starting selector to ON and the engine igniting.

When performing an engine ventilation, the starter time is the duration that the [CRANK] is pressed.

To prevent starter overheat damage, limit starter time to the following:

    • 30 seconds ON - 60 seconds OFF
    • 30 seconds ON - 60 seconds OFF
    • 30 seconds ON - 30 minutes OFF

The 30 minutes cooling period is required before beginning another starting cycle

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4
Q

WHEN DOES THE UPPER VEMD CHANGE TO THE FLI DURING START?

A

WHEN N1 IS ABOVE 60%

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5
Q

CAN HEATING DEMISTING SYSTEM BE USED DURING TAKEOFF?

A

Yes, BUT

CAUTION

Use of heating and demisting is forbidden above engine maximum continuous rating (Ng or t4).

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6
Q

WHAT IS BEST CLIMB Vy?

A

Above 100 ft (30 m), for maximum climb performance, select up to MCP and optimum climbing speed (Vy):

IAS kt = 65 kt at 0 Hp - (1 kt / 1000 ft). IAS km/h = 120 km/h at 0 Hp - (2 km/h per 300 m)

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7
Q

WHEN IS THE FLIGHT REPORT PAGE DISPLAYED?

A

The “FLIGHT REPORT PAGE” automatically replaces the “VEHICLE” page when the VEMD detects the engine shutdown” and NR below 70 rpm status

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8
Q

FUEL CELL CAPACITY

and

(Usable Amount)

A
  1. 7 Gallons
  2. 1 Crash Resistant Fuel Tank Usable
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9
Q

YELLOW ZONE ON FUEL GAUGE

A

15.8 Gallons Remaining

15 Minutes Flight Time at MCP

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10
Q

DOES THE FUEL GAUGE YELLOW ZONE INCLUDE NON-USABLE FUEL?

A

NO

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11
Q

DEMONSTRATED WIND ENVELOPE FOR STARTING AND STOPPING ROTOR

(Not Limitation)

A

40 knots from any direction

50 knots for direct headwind

Hovering with winds from any direction up to 17 kt has been demonstrated over the entire flight envelope although it is not to be taken as a limit. For example hover at sea level at maximum gross weight and for all CG locations has been substantiated at 30 kt

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12
Q

WHEN MUST BLADES BE TIED DOWN (Wind)?

A

Above 40 kt

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13
Q

HOW DO YOU CHECK ENGINE POWER IN HOVER BEFORE TAKEOFF?

A

In HIGE at 5ft and before initiating forward flight, pull the collective pitch lever slightly to ensure that the Ng can increase by at least 1%, without exceeding the max. transient rating

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14
Q

HOW DO YOU PERFORM A FADEC/ENGINE HEALTH CHECK?

A
  • The engine health check is performed in level flight MCP, heating and demisting system OFF.
  • Prefer an altitude where the engine is operating close to the N1 MCP limit.
  • Stabilize level flight MCP for at least 2 min. before initiating the engine health check.
  • Read the results displayed on VEMD after the end of the procedure.
  • The engine health check is satisfactory if:
  • TRQ MARGIN / TOT is above 0%, “GOOD” displayed, and
  • TRQ MARGIN / N1 is above 0%,“GOOD” displayed
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15
Q

DESCRIBE THE 3 ANCILLARY SYSTEMS

(PCB’s under the rear right passenger seat)

A

PCB1 - Fire warning lights, Aural NR warning horns, Gong

PCB2 - ENG chip, MGP chip, TGB chip caution lights, NR/NF signals, BATT TEMP warning light and processes VEMD electrical supply

PCB3 - EBCAU backup unit

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16
Q

CAN PILOT PERFORM AN EBCAU CHECK DURING FLIGHT OR ON THE GROUND?

A

NO

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17
Q

IS OUR GARMIN ACCEPTABLE FOR IFR FLIGHT?

A

NO, VFR only

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18
Q

WHAT TYPE OF ENGINE

A

Safran Arriel 2B1

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19
Q

SAFRAN ARRIEL 2B1 Power Rating

A

MTOP 847 SHP

MCP 747 SHP

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20
Q

ENGINE MODULES

A
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21
Q

LIST DIFFERENT WARNING SOUNDS

A

GONG - When a red warning appears on panel

CONTINUOUS HORN - When NR is below 360 rpm, When maximum takeoff limits are exceeded for more than 1.5 seconds

INTERMITTENT HORN - NR above 410 rpm

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22
Q

OVERALL LENGTH

from tip of rotor to tail

A

42.45’

23
Q

ROTOR DIAMETER

A

35.07’

24
Q

TR DIAMETER

A

6.1’ DIAMETER

25
Q

Vy USED FOR TAKE OFF, LAND, APPROACH AND EMERGENCY MANUEVERS

A

65 Knots

26
Q

MAXIMUM TEMP FOR HOT AIR DE-ICE

A

80c

27
Q

AUTOROTATION FLARE HEIGHT

A

70 Feet

28
Q

VEMD

(stands for)

A

Vehicle Engine Multifunction Display

29
Q

WHAT VEMD SCREENS ARE AVAILABLE UNDER FLIGHT MODE?

A
  • Engine
  • Vehicle
  • Flight Report
  • HIGE
  • HOGE
  • Engine Power Check
30
Q

WHERE ARE THE SCROLL BUTTONS LOCATED?

A

One on the collective

Right side of the VEMD unit

31
Q

WHICH VEMD PAGE IS FOR THE ENGINE?

A

Top page

32
Q

HOW MANY CHIP DETECTORS ARE ON THE ENGINE?

A

3

1 electrical

2 magnetic

33
Q

HOW MANY FUEL PUMPS ARE THERE?

A

3

1 boost pump .5 bar

1 low pressure pump 10 bar

1 high pressure pump 40 bar

34
Q

WHAT PART DOES THE OIL FILTER HAVE TO DO WITH THE FUEL SYSTEM?

A

Heats the fuel so anti ice additive is not needed

(anti ice, Prist, only needed if below -20c)

35
Q

FADEC

(STANDS FOR)

A

FULL

AUTHORITY

DIGITAL

ENGINE

CONTROL

36
Q

WHAT DOES

THE FADEC

DO?

A
  • Automatic engine starting, preventing TOT overlimit
  • Proportional integral power turbine speed control
  • Protection against engine surge and flame out during transients
  • Bleed valve monitoring
  • Protection against N1 and TOT overlimits
  • Failure detection and indication
  • Engine Health Check
  • N1 and N2 cycle counting
37
Q

WHAT IS

THE EECU

ALSO KNOWN AS?

A

“FADEC”

FULL AUTHORITY DIGITAL ENGINE CONTROL

OR

“DECU”

DIGITAL ENGINE CONTROL UNIT

38
Q

HOW IS THE

EECU SUPPLIED

POWER?

A

2 channel gas generator

driven independent

alternator

39
Q

HOW IS FUEL FLOW DETERMINED AND ADJUSTED?

A

By the EECU

40
Q

WHAT DOES THE

DUAL STAGE STEPPED MOTOR DO?

A

Provides fuel flow modulation by driving a metering valve in the engine’s ‘hydro-mechanical unit’

41
Q

FADEC SYSTEM

FAILURES

3 LEVELS

A

LEVEL 1 - FLASHING YELLOW GOV LIGHT

Reset EECU if before start

In flight, continue to nearest maintenance center

Applicable maintenance before next flight

LEVEL 2 - SOLID YELLOW GOV LIGHT

Avoid operating at engine or torque limits, cautious flight

LAND AS SOON AS PRACTICAL

DO NOT START ENGINE

  • Applicable maintenance before next flight*
  • LEVEL 3* - RED GOV LIGHT (Total EECU failure, metering valve frozen. EBCAU has taken over

During start: IMMEDIATELY SHUT DOWN

Avoid operating at engine or torque limits, cautious flight

LAND AS SOON AS PRACTICAL

42
Q

WILL THE AIRCRAFT START WITH THE ROTOR BRAKE OUT OF THE LOCKED POSITION?

A

NO

43
Q

IS THE OVERHEAD FUEL CUT-OFF LEVER SAFETEY WIRED?

A

No, a plastic cover protects it

44
Q

HOW MANY HYDRAULIC PUMPS?

A

2

Left hand gear driven for upper portion of servos

Right hand belt driven for lower portion of servos

45
Q

DO THE HYDRAULIC PUMPS USE SEPARATE RESERVOIRS?

A

YES

46
Q

WHAT IS THE PURPOSE OF THE ROTARY DISTRIBUTION VALVE?

A

If one of the systems fails, the two valves move as an independent unit and supply pressurized fluid and return

47
Q

IN THE EVENT OF HYDRAULIC FAILURE HOW DO THE HYD ACCUMULATORS HELP?

A

There are NO accumulators

48
Q

WHAT DOES

THE DAY

SETTING DO?

A

VEMD and CWP and DMP lights are set to normal brightness

Position lights on

49
Q

WHAT DOES

NIGHT 1 AND 2

SWITCH DO?

A

2 shuts off compass light

VEMD and CWP lights are dimmed accordingly

Position lights on

50
Q

WHEN DOES GEN TAKE OVER POWER PRODUCTION

A

When it produces .5 volt above battery

51
Q

FAN OPERATION TEMP

A

On at 77c

Off at 68c

52
Q

TR SHAFT SPEED

A

6000 RPM

53
Q

WHY IS THE GPS

CRITICAL TO

THE FADEC?

A

It provides a clock for EECU exceedences or failures

54
Q

DIFFERENCE BETWEEN SBT and SLT

A

SBT (Service Bulletin) Due to an incident or event

SLT (Service Letter) Information

AIRBUS H125 /AS350B3 / B3e (6 decks)

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