Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
29 Cards in this Set
- Front
- Back
|
When is the OEI HI operation enabled?
|
Any time the FADEC detects a 6% split (DIF N1) or frozen fuel meter (Major FADEC Failure) If in training mode the OEI LO range
|
|
|
A yellow or red clock appears on the bottom of the FLI page when..
|
operating in the corresponding range OEI LO or OEI HI
|
|
|
What are the three different OEI range's?
|
Continuous, CT
OEI LO 2 min OEI HI 30 second |
|
|
OEI usage can be accessed where?
|
the VEMD status page.
|
|
|
How is the EBCAU energized?
|
By switching the Fadec switch to Backup on the upper quadrant.
|
|
|
What are the FADEC'S main functions?
|
Starting, speed control, automatic back-up control, overspeed protection monitoring, and fault management
|
|
|
The BIM provides......
|
Overspeed protection, it also acts as a starter relay between each DECU and it's respective engine.
|
|
|
What would happen if a DECU channel were to fail?
|
The other DECU takes over all operations.
|
|
|
If both DECU channels were to fail .....
|
The EBCAU (when selected) can provide control of engine.
|
|
|
The Emergency Backup Control Auxiliary Unit is designed to...
|
To provide emergency control of the engine in the event of a dual channel FADEC Failure.
|
|
|
What happens when the FADEC's training switch is selected?
|
The simulated failed engine is reduced to 320 RPM N2 and single engine FLI is displayed on the VEMD.
|
|
|
If in training mode and NR droops below 320 RPM .....
|
the "idle" engine will provide power up to the actual selected OEI stop to prevent excessive droop.
|
|
|
What are the ratios to drive the main rotor and tail rotor?
|
Main Rotor 17 to 1
Tail rotor 1.5 to 1 |
|
|
What is the MGB total oil quantity?
|
9.34 quarts
|
|
|
The MGB alternators supply?
|
200 volts three phase 115 volts single phase.
|
|
|
Engine driven alternators provide?
|
100 volts three phase 48 single phase to their respective fadec when N1 is at or above 68%.
|
|
|
What happens in the event of a dual channel alternator failure?
|
The internal transformer rectifier will enable use of aircraft DC for FADEC Operation.
|
|
|
What is the output of the starter generators?
|
28 Volts DC whenever the engines are operating at or above 60 % N1
|
|
|
What is a level 1 FADEC Failure?
|
(loss of redundancy) a TOT signal loss will be warned by s flashing GOV light when FADEc control switch is in idle or off.
|
|
|
What is a level 2 Fadec Failure?
|
(loss of a non redundant resource) such as a FADEC crosstalk failure will manifest as a steady GOV light Level 2 represents a degraded operation state of the FADEC
|
|
|
What is a level 3 Fadec failure?
|
Level 3 is a major FADEC failure such as a dual channel FADEC failure and manifests itself as a FADEC fail a red engine status ligtht and frozen fuel flow at its present value.
|
|
|
What is the normal FADEC torque limitation?
|
110%
|
|
|
What are the sliding door speeds?
|
80 knots for movement100 knots for locked open120 knots for removed
|
|
|
What are the hatch speeds?
|
60 forward 30 sideward for movement80 forward 35 sideward when open and locked
|
|
|
What five pages are on the VEMD?
|
Fuel, Vehicle, Status, FLI, EPC
|
|
|
What is HIPSARM?When will you be in a HIPSARM situation?
|
HIPSARM - Hover Increased Power Search and Rescue MissionHIPSARM will not occur unless you are in hover operations above 8.8 FLI, with N1 or TOT as the limiting factor for more then 5 minutes
|
|
|
N1's are monitored by three N1 sensors (a,b,c) where do these signals go to?
|
A and B go to the FADECC goes to the EBCAU
|
|
|
N2's are monitored by three sensors (a,b,c) where do these signals go?
|
A goes directly to the pilots Nr gauge in the cockpitB and C go to the FACED and VEMD for N2 speed control and protection.
|
|
|
_____ % of your _____ sensors the BIM with enable its overspeed protection, freezing the engine from going any higher.
|
122.4% (±1), N2B or N2C
|
