EC130B4 Random Questions Flashcards
Further info for study for Ec130B4 checride (60 cards)
OVERALL LENGTH
from tip of rotor to tail
41.47’
ROTOR DIAMETER
35.07’
WHAT TYPE OF ENGINE
Turbomeca Arriel 2B1
MAST TILT
2 degrees forward to level cabin in cruise flight
TURBOMECA ARRIEL 2B1 Power Rating
847 SHP
(through reduction derated to)
747 SHP (MTOP)
728 SHP (MCP)
Vy USED FOR TAKE OFF, LAND, APPROACH AND EMERGENCY MANUEVERS
70 Knots - 1/1000’
AUTOROTATION FLARE HEIGHT
70 Feet
VEMD ENGINE CHECK PROCEDURES
Scroll to Engine Performance Check (EPC) page
Hold settings for 30 seconds and read results on the following page
SCU
System Control Unit
To tell you which button on the console is engaged before applying power, because the buttons do not stay depressed
VEMD
(stands for)
Vehicle and Engine Mangment Display
WHAT VEMD SCREENS ARE AVAILABLE UNDER FLIGHT MODE?
- Engine
- Vehicle
- Flight Report
- HIGE
- HOGE
- Engine Power Check
WHEN IS THE FLIGHT REPORT PAGE DISPLAYED?
On engine shutdown when NR is below 70 rpm
HOW MANY CHIP DETECTORS ARE ON THE ENGINE?
3
1 electrical
2 magnetic
HOW MANY FUEL PUMPS ARE THERE?
3
1 start pump .5 bar
1 low pressure pump 10 bar
1 high pressure pump 40 bar
WHAT PART DOES THE OIL FILTER HAVE TO DO WITH THE FUEL SYSTEM?
Heats the fuel so anti ice additive is not needed
(anti ice, Prist, only needed if below -20c)
FADEC
(STANDS FOR)
Full Authority Digital Engine Control
WHAT DOES THE FADEC DO?
- Automatic engine starting, preventing T4 exceedences
- Proportional power turbine speed control with rotor noise reduction feature
- Protection against engine surge and flame out
- Bleed valve monitoring
- Protection against NG and T4 overlimits
- Engine Power Check (EPC)
- NG and NF cycle counting
HOW IS FUEL FLOW DETERMINED AND ADJUSTED?
By the FADEC
WHAT DOES THE DUAL STAGE STEPPED MOTOR DO?
Provides fuel flow modulation by driving a metering valve in the engine’s ‘hydro-mechanical unit’
HOW IS THE FADEC SUPPLIED POWER?
2 channel gas generator driven independent alternator
FADEC SYSTEM FAILURES 3 LEVELS
LEVEL 1 - FLASHING YELLOW GOV LIGHT
Flashing at idle or during starting or shut down: Governor redundancy failure, no impact on governing
function.
. Start-up procedure: abort, report to Maintenance Manual
. Autorotation training: cancel training, return to base.
LEVEL 2 - SOLID YELLOW GOV LIGHT
Permanently lighted :
Governing function degraded.
1. Collective - AVOID abrupt power changes.
2. IAS - MAINTAIN below VNE power off
LAND AS SOON AS PRACTICABLE
On ground : do not start the engine.
LEVEL 3 - RED GOV LIGHT (Total FADEC failure, metering valve frozen. EBCAU has taken over
IN FLIGHT:
1. Flight parameters - CHECK
Emergency mode automatically self-engages. GOV (yellow) illuminates.
2. Collective pitch…………….. AVOID abrupt changes
Maintain Ng > 80% Hp < 20000 ft
Maintain Ng > 85% Hp ≥ 20000 ft
LAND AS SOON AS PRACTICABLE
Approach and Landing : Make a powered approach. Avoid steep angle.
After touch down, shut-down :
Collective pitch - SLOWLY down to low pitch
Starting selector - OFF
NOTE
This failure can also results in loss of ΔNg and torque parameters on the VEMD.
• DURING ENGINE STARTING :
Starting selector - OFF position immediately
DESCRIBE THE 3 ANCILLARY SYSTEMS
(PCB’s under the rear right passenger seat)
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
WHAT IS THE NAME OF THE SHROUDED TAIL ROTOR SYSTEM?
FENESTRON
HOW MANY BLADES MAKE UP THE FENESTRON?
10
