NATOPS CH2.X Fire/Anti-Ice/Hoist Misc

Question 1

How do you release the parking brake?

Answer 1

Pressing either left pedal releases the Pasrking brake returning the handle to the down position

Question 2

How does the Tail Wheel Shimmy Damper Work?

Answer 2

The shimmy damper causes both of the tail gear wheels to rotate at the same rate, preventing tail oscillations

Question 3

Whats the purpose of the tail bumper?

Answer 3

Prevents the stabilator from striking the ground when landing with nose-high attitudes

Question 4

What is the RAST Capable of?

Answer 4

1. Assisting the pilot in landing the helicopter on the deck
2. Securing the helicopter to the deck
3. Straightening the helicopter to a laterally centered position
4. Traversing the helicopter into and out of the hangar

Question 5

What are the three lights the SO see’s during RA Recoveries?

Answer 5

1. Main Probe is DOWN
2. Messenger Cable is IN
3. Hauldown Cable is LOCKED

Question 6

What are the switches that will give a PYLON FLIGHT light?

Answer 6

1. Pylon lock switch
2. 5° Switch
3. Tail rotor blade indexer switch
4. 2x Stabilator lock pins

Question 7

When folding the Pylon, what must be on?

Answer 7

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

Question 8

What sends the aircrafts altitude to the transponder?

Answer 8

The backup altimeter contains the encoder which provides a digital pressure output in 100’s of feet to the IFF Transponder

Question 9

How do the fire detectors work?

Whats different about the new detectors?

Answer 9

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)

Question 10

How do you know if one of your Fire Bottles Discharged?

Answer 10

Thermal dischrage is indicated by the loss of the red plastic disc on the left side of the aircraft

Question 11

What happens when you pull multiple T-Handles?

Answer 11

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

Question 12

What happens when you pull the APU T-Handle?

Answer 12

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

Question 13

How do you activate the Fire Extinguisher without AC power?

Where can’t it go?

Answer 13

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

Question 14

When will the Fire Extiguishers Auto Discharge?

Answer 14

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

Question 15

How much torque do you lose when running the ECS?

How much extra fuel is consumed?

Answer 15

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

Question 16

What does the De-Ice Master Control?

Answer 16

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

Question 17

How does the Aircraft sense Ice buildup?

How does the system respond?

Answer 17

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

Question 18

How does the system Control the Element-On-Time (EOT) and the element off time?

Answer 18

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

Question 19

How are the Main Rotor and Tail Rotor De-iced?

Answer 19

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

Question 20

When should the manual De-Ice mode be used?

Answer 20

1. The pilot has determined by judgement of icing intensity that the ice rate system is inaccurate
2. Torque has increased to an unacceptable level
3. Vibrations have increased to an unacceptable level

Question 21

When is the windshield anti-ice system used?

Answer 21

It can be used to prevent ice and fog from forming on the windshields

Question 22

Whats a risk with a faulty Windshield Anti-Ice system?

Answer 22

Could result in arcing and delamination, which if not promptly secured could result in a fire

Question 23

When is Pitot Heat Required to be used?

Answer 23

Pitot Heat SHALL be turned on when visible moisture is present and/or the OAT is 5°C or below

Question 24

When will the Seat Belt Auto-Lock?

Answer 24

A force of 3Gs or more will cause the inertial real to lock and only retract until the lever is cycled

Question 25

How much cable is in the Rescue hoist?

When does the color change?

Answer 25

The hoist contains 200 ft of usable cable

The first and last 20 ft is painted bright orange

Question 26

What are the two types of rescue hoists and how fast do they go?

Answer 26

Breeze Eastern: 0-215 ft/min

Lucas Western: 0-250 ft/min

Question 27

How fast can the pilot control the rescue hoist?

how fast does the backup mode go?

Answer 27

Pilots can control the hoist at 100 ft/min in either direction

The backup mode provides a constant 85 ft/min

Question 28

How does the Aircrew Pendant Control speed at hoist cable limits?

What about in backup mode?

Answer 28

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

Question 29

What does the All Stores Jettison button not Eject?

Answer 29

Will jettison all stores except for CMDS (and the Aux tank if its below 272lbs)

Question 30

What are the risks of a PIU Fault?

Answer 30

A PIU fault or failure with stores/ordnance on the corresponding weapon station may result in uncommanded jettison of that stations stores/ordnance

Question 31

In what order does the AL STORES JETT button Jettison everything?

Answer 31

1. Sonobuoys
2. Left inboard
3. Right inboard
4. Left Outboard
5. Right Outboard

Question 32

Whats the min Pressure required to Jettioson a full sonobout launcher?

When does it secure?

Answer 32

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

Question 33

Whats required to selectively Jettison stores?

Answer 33

With the exception of the CMDS stores, selectice jettison requires the MASTER ARM pushbutton to be armed

Question 34

When do IHEELS/ADHEELS come on and how long do they stay on?

Answer 34

1. Fresh or saltwater immersion
2. Impact Force of 11-13Gs or greater (not IHEELS)
3. Attitude changes of 100±5° or greater in either pitch or roll

Remain illuminated for a minimum of 45 min