NATOPS CH2.X Fire/Anti-Ice/Hoist Misc Flashcards
How do you release the parking brake?
Pressing either left pedal releases the Pasrking brake returning the handle to the down position
How does the Tail Wheel Shimmy Damper Work?
The shimmy damper causes both of the tail gear wheels to rotate at the same rate, preventing tail oscillations
Whats the purpose of the tail bumper?
Prevents the stabilator from striking the ground when landing with nose-high attitudes
What is the RAST Capable of?
- Assisting the pilot in landing the helicopter on the deck
- Securing the helicopter to the deck
- Straightening the helicopter to a laterally centered position
- Traversing the helicopter into and out of the hangar
What are the three lights the SO see’s during RA Recoveries?
- Main Probe is DOWN
- Messenger Cable is IN
- Hauldown Cable is LOCKED
What are the switches that will give a PYLON FLIGHT light?
- Pylon lock switch
- 5° Switch
- Tail rotor blade indexer switch
- 2x Stabilator lock pins
When folding the Pylon, what must be on?
Unless external power or the BATT switch is turned on prior to folding the tail pylon, the tail rotor indexer actuator will not engage after starting the pylon fold sequence, which could result in uncontrolled windmilling
What sends the aircrafts altitude to the transponder?
The backup altimeter contains the encoder which provides a digital pressure output in 100’s of feet to the IFF Transponder
How do the fire detectors work?
Whats different about the new detectors?
Then one of the sensors detects infrared radiation (fire) without any blue light (from sunlight), it sends a signal to the amplifier which activates the correct T-Handle and the fire light
Newer IR flame detectors are designed to eliminate susceptibility to false alarms (also result in a 5 sec delay for the T-Handle lights to extinguish)
How do you know if one of your Fire Bottles Discharged?
Thermal dischrage is indicated by the loss of the red plastic disc on the left side of the aircraft
What happens when you pull multiple T-Handles?
If you pull both the No.1 EngineT-Handle and the APU T-Handle, the fire system will discharge into whichever Handle was pulled last.
Any time the No.2 Engine T-Handle, the system will dispense into the No.2 Engine bay
What happens when you pull the APU T-Handle?
It removes electrical power from the APU airframe fuel shutoff valve allowing it to close (shuts off gas to APU)
Also removes power from the prime boost pump, stops the DESU, and arms/sets the fire extinguisher to the APU compartment
How do you activate the Fire Extinguisher without AC power?
Where can’t it go?
If there is no AC power you must use the RESERVE position in order to discharge agent into No.1 Engine Bay or the APU
Without AC power, you cannot discharge into the No.2 Engine Bay
When will the Fire Extiguishers Auto Discharge?
A Multiple-Axis senor (10G) is hard mounted to the airframe, when crash forces are felt the switch will activate via the battery utility bus and discharge one bottle into each engine compartment
How much torque do you lose when running the ECS?
How much extra fuel is consumed?
NORM: max torque is reduced by 4% per engine, fuel flow increases by 8 lbs/hr
HIGH: max torque is reduced by 7% per engine, fuel flow is increases by 45 lbs/hr
What does the De-Ice Master Control?
Placing the switch to ON will automatically turn on the following (if their switches are already OFF) with ice detected:
- ENG ANTI-ICE
- WINDSHIELD ANTI-ICE
- BLADE DE-ICE
Placing the switch for the above systems to ON, will allow them to run continuously
How does the Aircraft sense Ice buildup?
How does the system respond?
Icing is sensed when ice accumulation on the vibrating probe (on the No2. Engine Cowling) changes the frequence at which it vibrates
The Ice Detect Caution is illuminated and the probe is heated to shed the Ice. Once shed the caution goes away and the heater is turned off, the rate at which ice accumulates determines the severity of the icing environment
How does the system Control the Element-On-Time (EOT) and the element off time?
On time is controlled by OAT, the lower the temperature is the longer EOT will be
Off time is controlled by the ice rate signal (Severity of icing build up), resulting in off-time variations proportional to icing rate
How are the Main Rotor and Tail Rotor De-iced?
The main rotor is de-iced in cycles (2 blades at a time) this reduces power requirements, sheds ice symmetrically, and prevents ice from coming in contact with the pylon
The Tail Rotor is De-iced by all four blades simultaneously
When should the manual De-Ice mode be used?
- The pilot has determined by judgement of icing intensity that the ice rate system is inaccurate
- Torque has increased to an unacceptable level
- Vibrations have increased to an unacceptable level
When is the windshield anti-ice system used?
It can be used to prevent ice and fog from forming on the windshields
Whats a risk with a faulty Windshield Anti-Ice system?
Could result in arcing and delamination, which if not promptly secured could result in a fire
When is Pitot Heat Required to be used?
Pitot Heat SHALL be turned on when visible moisture is present and/or the OAT is 5°C or below
When will the Seat Belt Auto-Lock?
A force of 3Gs or more will cause the inertial real to lock and only retract until the lever is cycled
How much cable is in the Rescue hoist?
When does the color change?
The hoist contains 200 ft of usable cable
The first and last 20 ft is painted bright orange
What are the two types of rescue hoists and how fast do they go?
Breeze Eastern: 0-215 ft/min
Lucas Western: 0-250 ft/min
How fast can the pilot control the rescue hoist?
how fast does the backup mode go?
Pilots can control the hoist at 100 ft/min in either direction
The backup mode provides a constant 85 ft/min
How does the Aircrew Pendant Control speed at hoist cable limits?
What about in backup mode?
During normal operations the hoist will slow to 50ft/min within 10ft from full up or 5ft from full down
This safety feature is removed when in backup mode
What does the All Stores Jettison button not Eject?
Will jettison all stores except for CMDS (and the Aux tank if its below 272lbs)
What are the risks of a PIU Fault?
A PIU fault or failure with stores/ordnance on the corresponding weapon station may result in uncommanded jettison of that stations stores/ordnance
In what order does the AL STORES JETT button Jettison everything?
- Sonobuoys
- Left inboard
- Right inboard
- Left Outboard
- Right Outboard
Whats the min Pressure required to Jettioson a full sonobout launcher?
When does it secure?
Minimum pressure to jettison a full sonobuoy launcher is 1,100 psi
The system will secure at 250 psi to ensure safe separation of launched buoys
Whats required to selectively Jettison stores?
With the exception of the CMDS stores, selectice jettison requires the MASTER ARM pushbutton to be armed
When do IHEELS/ADHEELS come on and how long do they stay on?
- Fresh or saltwater immersion
- Impact Force of 11-13Gs or greater (not IHEELS)
- Attitude changes of 100±5° or greater in either pitch or roll
Remain illuminated for a minimum of 45 min
