Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MH-60R BONUS deck > Instrument 2N > Flashcards

Instrument 2N Flashcards

1
Q

Comm/Nav System

A

N1: the AMC cooling fan power is provided through the 4-A AMC CB. If the CB is pulled, the AMC will report an OVERTEMPERATURE condition. If the AMC CB remains pulled, the AMC will overheat and be damaged as a result

N2: during any aircraft power transients or internal AMC circuit/software anomalies, normal functionality of the AMC may be lost while the AMC attempts a reset. This situation can last up to approx. 30 seconds. Within 1 second, backup ICS (CALL) and the radio operations will be available. There may be several instanes of momentary comms loss until the AMC completes the reset

N3: with loss of AMC functionality, if normal computer command ops via keyset/CDU cannot reinitiate comms with the AMC, cycle the main (10A) AMC CB on the #1 DC Pri Bus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Cold Weather Operations

A
  • plan to circumvent areas of forecast atmospheric icing and thunderstorm conditions whenever practicable
  • rubber, plastic, and fabric material stiffen and may crack or even shatter when loads are applied. Oils congeal and grease hardens
  • If hanger space is available, the aircraft should be kept in a heated hanger when OAT is forecast below freezing (0-deg C/32-deg F)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Snow Precautions

A

Issues with restricted visibility in snow can be overcome with smoke grenades or colored objects; the smoke stands out against the snow and shows wind direction, and you may not have a visible horizon to fly off of.

Climb speeds should be higher than normal to prevent “white out”

Running takeoffs are permitted so long as GS is kept NMT 60 KGS on level terrain. On landings NMT 15 KGS on touchdown

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Ice Precautions

A

When you encounter ice conditions, first thing should be to get OUT of icing conditions

W1: flight into known icing conditions without deice equipment is prohibited

W2: flight into forecasted or known moderate or severe icing conditions is prohibited

W3: OAT gauges are non-calibrated instruments and may provide false information

W4: ice shed from the rotor blades and/or other rotating components presents a hazard to personnel during landing/shutdown

N1: ice shed from the main rotor may strike the tail rotor during rapid descents following flight in icing conditions

N2: ice formation on the lower hub assembly of the main rotor head may prevent droop-stop engagement on shutdown

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Thunderstorm Precautions

A
  • avoid flight through or near T-storms
  • a severe lightning strike would likely result in loss of all electrical sources except the battery; in which case, the only remaining instruments available to the pilots would be the standby instruments
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Hot Weather Operations

A

Expect higher Pr to hover, plan rest of the flight accordingly.

During ground ops, if engine oil pressure gets into the red range/ENGINE OIL PRESS caution when PCL is in IDLE position, just slightly advance it (if it goes back to yellow, it’s fine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

IFR Flight Planning Procedures

A

introduce

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Flight Plan/Airway Navigation

A

introduce

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Instrument Takeoff procedures (ITO)

A
  1. establish normal hover (with no sideward drift)
  2. increase collective, maintain level attitude
  3. @ 15ft on RADALT, lower nose to approx 5-deg down (MDG says 3-7 degrees)
  4. simultaneously increase the collective to best climb setting and accelerate to climb speed (90KIAS)
    4a. when passing through translational lift, the nose attitude may require readjustment. DO NOT LET THE NOSE TUCK!
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Night/IMC descent over water

A

Conduct any time a descent over water or in IMC is over water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Plan Bezel

A

can create flight plan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Flight Planning/Data Entry

A

use the plan bezel key

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Waypoint/Fly-to-point nav

A

use the CDU and PD to create FTP on the plan screen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

NPA

A

TACAN or ASR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

PA

A

PAR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

SAS Malfunction

A

SAS off landing

  1. fly normal approach to a 20 ft hover over landing spot
  2. consider turning into wind, arrest drift (HVR mode), and lower collective to land
    2a. pause at a 10ft to stabilize again before continuing down
    2b. a/c control response will be more sensitive so use small inputs
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Cold weather ops - preflight

A
  • exterior: check fuel drains, engine inlets, rotor head/blades, tail rotor and flight controls for ice/snow. Check tires not frozen to the ground; apply preheat to aircraft if available
  • Interior: check PCLs for freedom of movement before the start, flight controls may be difficult to move after an aircraft has been cold soaked; if they don’t move freely properly, heat affected controls
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Cold weather ops - engine oil characteristics

A

-normal to see high engine oil pressures, it should return to normal after operating for 5 mins

  • during starts in extreme cold weather (near -40-degC) the following are typical:
    1. oil px at zero for first 20-30 secs after a start. Abort if there’s no indication after 1min
    2. once indicated, oil px exceeding 100 PSI limit is typical, the time to decrease below that could take 5 mins after a start. Do not advance the PCL to FLY until the engine oil px is indicating normal
    3. oil px may exceed max px limit if accelerated above idle with oil temp below idle. The impending bypass indicator/PDI has a thermal lockout at 38-degC to prevent the PDI from popping. The OIL FILTER BYPASS caution may appear during cold starts, once the oil warms up to 38-degC, the caution should go out
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Cold weather ops - engine starting/warmup

A
  • Consideration should be given to preheating the fuel components prior to flight ops
    a. at -17 to -31 degrees C: warmup for 3 mins, put cyclic 1 inch forward, move pedals 3/8 inches
    b. at -31 to -40 degrees C: warmup for 3 mins, put cyclic 5/8 to 2 inches forward. Move pedals 1/8 to 1/2 inch.

N1: when starting an engine that has been exposed to low temperatures overnight, watch for a rise in TGT within 40 secs. If no TGT rise is evident, prime the engine and attempt another engine start. If there is no overboard fuel flow during prime, inspect for ice in the sumps and filters. During cold-weather operation, allow a longer warmup period to bring transmission oil temperature up to desired operating range. Monitor oil pressure and temperature closely.

N2: when on an icy surface, it is advisable to utilize No Rotor Brake Start Procedures to prevent possible aircraft rotation caused by rapid increase in torque experienced during a Rotor Brake Start Procedure and engagement

20
Q

Cold Weather ops - taxiing

A
  • do not exceed 15 KGS

- MD/FD may take awhile to boot up

21
Q

Cold weather ops - equipment

A
  • MD/FDs will take longer to boot up. They’ll come on within 15 secs, but may take 15 mins to get full capacity
  • the TA (for Dip Ops) charge time varies with temp and battery condition/age. Normally with MSN PWR - ON, it will take 10 mins. BUT at IAT of 5-decC and below it could take 45 mins.
22
Q

Snow precautions - takeoff

A
  • slight yaw motion can break tires free from ice

- an ITO may be required due to blowing snow (white-out); as little time in the hover should be spent as possible

23
Q

Snow precautions - cruise

A
  • use APU for ECS as req
  • with ECS on HOT, max Q available is reduced 5%/engine (FF is increased by 45 pph/engine)
  • with APU powering ECS, FF increases by 150 pph/engine
24
Q

Snow precautions - landing

A

-whenever possible, the crew should familiarize themselves with the terrain under the snow. Running landings are recommended loose snow, maintain GS above KGS

25
Q

Snow precautions - before leaving the aircraft

A
  1. protect wheels from freezing
  2. leave parking brake off + chocks/tie-downs
  3. open the scuppers on cockpit windows; air circulation will keep frost from forming and reduce cracking
  4. drain moisture accumulations from sumps and strainers
  5. install engine inlet plugs after shutdown
26
Q

Water pooled in intake ducting will _____.

Intake shall _______.

When OAT reaches ______ in ________, the engine inlet guide vanes (IGVs) are _______.

A

freeze in cold weather and may result in FOD.

shall also be checked for ice on preflight.

When OAT reaches 5-degC or below in visible moisture, the engine inlet guide vanes and the inlet are susceptible to icing

27
Q

Engine/inlet anti ice notes

A

N1: ice damage to the T700 engine may be characterized by a high-pitch noise with no associated power loss or secondary indication

N2: significant power loss and increased fuel consumption can be expected as a result of the actuation of the engine and engine inlet anti-ice systems

28
Q

Ice rate detector

A

Senses changes in vibrations which triggers the ice detector

29
Q

Helos equipped with blade de-ice

A
  1. flight is permitted in forecast or known trace or light icing conditions. Anti-ice/de-ice system shall be turned on prior to entering visible moisture at temperatures 5-degC or less
  2. additional 14% Q increase may be experienced due to ice buildup during normal operation of blade de-ice
  3. an increase of over 10% matched Q should result in urgent considerations to vacate the environment. If Q increases 20% above required for level flight, exit icing environment or land as soon as possible
  4. if brad de- ice is not in operation, asymmetric shedding of ice may cause imbalances; vibrations will normally subside after 30-60 seconds
  5. when droop stops fail to engage, the main rotor blades may droop to within 4-ft of the ground during shutdown
30
Q

Helos equipped with blade de-ice warning and notes

A

**W: ice accumulation resulting in a 20% Q increase indicates that normal auto rotational rotor rpm may not be attainable should dual engine failure occur

  • N1: potential exists for incomplete blade fold following flight in icing conditions. Visually ensure all blade fold microswitches contact surfaces are free of ice accumulation prior to attempting a blade fold sequence
  • N2: the potential exists for the anti-flapping devices to remain in the open position following flight in icing conditions
31
Q

Pitot-static tube heater

A

Shall be used when OAT is less than or equal to 5-degC OR when visible moisture is present

**W: failure to turn on pitot heat in icing conditions may cause erroneous airspeed indications, which may lead to erratic or downward programming of the stabilator and loss of control of the aircraft

32
Q

Turbulence Precautions

A
  • don’t fly in a manner that would result in deviations form normal limits
  • when flying through turbulence: alert the crew and limit airspeed IAW level of turbulence (Blade stall speed minus 15 for moderate turbulence OR blade stall speed minus 10 for light)
33
Q

How should you fly in turbulent air?

A
  • fly at a fixed collective and level pitch attitude to remain relatively constant in airspeed, allow altitude to vary
  • do not engage RADALT hold as AFCS will attempt to maintain altitude by moving the collective
34
Q

How do you start the rotors in turbulent air?

A

Position into the wind, holding the cyclic into the wind.

Increase Nr immediately to prevent flapping

35
Q

How do you descend in turbulent air?

A

A long, flat, powered approach&raquo_space; steep, slow, low-powered approach

36
Q

How do you stop the rotors in turbulent air?

A

Position into the wind, use normal shutdown procedures.

Apply rotor brake when Nr below 40%.

37
Q

Hot Weather Notes

A

N1: fuel densities will decrease as the ambient temperature rises, resulting in a decrease in operating range

N2: high humidity increases DA and effectively reduces the efficiency of the rotor system. For every 10% increase in relative humidity, the DA increases approximately 100 ft. Thus a high relative humidity, close to 100%, can effectively increase the DA by as much as 1000 feet.

38
Q

Desert Procedures

A

-severe damage can be caused by sand and dust; consider towing the aircraft into takeoff position

N1: Operations in extremely dusty conditions for extended periods may cause the ICE DETECTED caution light to appear due to particulate buildup on the detector

39
Q

Desert preflight/start/taxi

A
  1. check “oleo struts” for sand and dust, remove any accumulation with a clean, dry cloth. Be sure to plan and properly compensate for the se conditions by utilizing Performance Charts as accurately as possible
  2. Starting should be from a hard, clean surface, and into the wind
  3. Get the helicopter as quickly airborne as possible, fi you can’t get towed
40
Q

Desert Takeoff/Cruise

A
  1. takeoff and climb as rapidly as possible

2. avoid flying through sand or dust storms when possible

41
Q

Desert Landing/Shutdown/Post-flight

A
  1. best landing is a steep approach to a no-hover
  2. shutdown the engine as soon as practicable
  3. install all protective covers and shields, EXCEPT if sand/dust is blowing, then open windows and doors to ventilate
42
Q

Navigation System does what?

A

Navigation subsystems collect flight information and navigational data, the information is processed and displayed via FD/MDs.

43
Q

What are the navigation subsystem components?

A
  • 2 EGIs (embedded GPS inertial system)
  • 2ADCs (air data computers)
  • 1 Air data transducer
  • 1 Air speed transducer
  • TACAN set
  • DFG (direction finder group)
  • RADALT (radar altimeter)
  • AFCS w/digital AFCC (auto flight control system; advanced flight control computer)
  • DTIU (data transfer interface unit)
44
Q

What is the heading hold tolerance in a hover for the AFCS?

A

+/-1 degree

45
Q

Navigation system interfaces with the following components:

A
  1. FD/MDs
  2. Primary mission computer
  3. backup mission computer
  4. keysets/CDUs/PDs
46
Q

Hi

A

Hi

MH-60R BONUS deck (26 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions