AOIs Flashcards
LAND AS SOON AS PRACTICABLE
means that extended flight is not recommended. The landing site and flight duration are at the discretion of the aircraft captain.
LAND AS SOON AS POSSIBLE
means that continued flight is not recommended. Land at the first site at which a safe landing can be made.
LAND IMMEDIATELY
means that an immediate landing/ditching is mandatory. The consequences of continued flight are more hazardous than those of landing at a site normally considered unsuitable.
WARNING
Used to emphasize an operating or maintenance procedure, practice, condition, statement, etc., which if not strictly observed, could result in injury or death to personnel.
CAUTION
Used to emphasize an operating or maintenance procedure, practice, condition, statement, etc., which if not strictly observed, could result in damage to or destruction of equipment, loss of mission effectiveness or long-term health hazards to personnel.
NOTE
Used to point out a procedure, event or practice which is desired or essential to highlight.
What are the max speeds?
Forward Flight Fwd flight w/ FLIR mounted Sideward flight Rearward flight Dome lowered Dome at the trail
Forward Flight 151 KIAS Fwd flight w/ FLIR mounted 130 KIAS Dome at the trail 100 KIAS Dome lowered 60 KIAS Sideward flight 30 KIAS Rearward flight 20 KIAS
What is the Basic and Max Gross weight
Basic weight: 14, 500 lbs
Max Gross weight: 20, 500 lbs
What are the dump rates for the fuel tanks?
Max rate: 600 lbs/min
Fwd tank: 315 lbs/min
Aft tank: 365 lbs/min
What is the Max Useable Fuel when gravity/pressure fueling, and how much is un-useable?
Pressure fueling: 4043.4 lbs (35.2 lbs unusable)
Gravity fueling: 4234.8 lbs (35.2 lbs unusable)
When will you get a low-level fuel caution?
210 to 280 lbs per tank remain in a 3° nose-down attitude
170 to 200 lbs per tank when in a hover
When must you declare a fuel emergency ashore? At sea?
At 300 pounds total fuel remaining, the helicopter must declare an emergency and land as soon as possible.
At 150 pounds remaining, an immediate landing/ditching is required.
When do the fuel filter bypass lights illuminate?
The fuel filter bypass caution lights will illuminate whenever the fuel filters of the respective tanks are becoming clogged. This indication will occur prior to the point at which differential fuel pressure will unseat a relief valve within the filter, resulting in unfiltered fuel bypassing the filter and being delivered to the engine.
What does the black stripe on the IBIS indicator mean?
If the pressure in the blade spar drops below the minimum permissible service pressure, the indicator will be activated and will show two black stripes.
What are the items on the accessory drive?
(clockwise from top left) No.1 generator, No.2 generator, primary hydraulic system pump, No.2 main gear-box oil pump, utility hydraulic system pump, auxiliary hydraulic system pump, tail drive-shaft take-off, rotary wing tachometer-generator, torque indicating system oil pump, No.1 main gear-box oil pump
What will cause the main, interim, or tail chip lights to illuminate?
The CHIP DET MAIN warning light illuminates when a main gear-box magnetic chip detector has picked up and retained metallic particles or chips in the oil.
The CHIP DET INTERM and CHIP DET TAIL warning lights will illuminate if a chip is detected in the respective gear-box or if the temperature in the gear box exceeds 140 ± 6 degrees Celsius
Will the aircraft Utility Power Receptacle still receive power if the No.2 generator fails?
No, if No.2 Gen fails, the entire load is dropped and No.1 Gen picks up pilot’s Attitude Indicator only.
If both of the transformer rectifiers fail and you cycle the battery off, can you still jettison your armament stores? What if your battery is on?
The jettison armament switch is powered by essential bus. The essential bus is energized by either or both TRUs or by battery if both AC generators or both TRUs fail. Jettison of stores is only possible with the battery on in the case of dual TRU failure.
What happens in the case of a No.1 Gen failure? No.2 Gen failure?
If the No.1 generator should fail during flight, relays automatically connect the No.2 generator to the No.1 generator load and disconnect the No.2 generator load except for the pilot’s attitude indicator and the sonar.
During flight, if the No.2 generator fails, No.2 generator load is dropped except for the pilot’s attitude indicator, which is automatically switched to the No.1 generator load.
What operates on the No.1 generator?
No.1: VGI Control (Co-pilot), VGI Control (Pilot), ASE, Engine Anti-Ice, No.1 fuel pumps (fwd & aft), armament, ASN-123, Sonobuoy, Fuel dump, Doppler blower, Windshield anti-ice (pilot), GHARS, Ice detector, Inlet anti-ice control, OTPI, FOD de-ice, TACAN, Radalt, Doppler, IFF, RAWS, Radar, HF, IBIS, Dome control, CPM, Windshield wipers
What’s on the No.2 Generator?
VGI control (pilot) Windshield anti-ice (co-pilot) AC utility receptacle Heater blower No.2 fuel pumps (fwd and aft)
Where are the AC utility receptacles? DC?
One 115/200 VAC utility receptacle is located on the right-hand cabin wall adjacent to the hoist operator’s station
The 28 VDC external receptacle is located on the right side of the helicopter below the pilot’s window
What happens if either TRU fails? If both TRUs fail?
If either rectifier fails, the monitored bus is automatically dropped and the appropriate caution panel capsule illuminates. If both rectifiers fail, the primary bus is also automatically dropped and the #1 RECTIFIER and #2 RECTIFIER caution panel capsules illuminate.
What are the 4 buses on the Sea King DC electrical system?
Power for operation of the DC electrical equipment is distributed through four buses: essential bus, primary bus, monitored bus and battery bus.
What does the Essential bus power? Primary? Monitored?
The essential bus supplies power for operation of the DC flight instruments and all equipment necessary for safety of flight
The primary bus supplies power to equipment necessary for completion of missions
The monitored bus supplies power to equipment not required for safety of flight
Why does the battery need to remain on during flight?
The battery switch should remain ON at all times during flight to ensure DC power is supplied to the supervisory panel. Failure to do so will cause a loss of both generators should a dual transformer rectifier failure occur and may cause improper switching of generator loads should a loss of No.1 generator occur.
What do you lose when the ASE is U/S?
The ASE in conjunction with associated electronic and hydraulic systems performs the following functions when engaged by the pilot: Directional Stabilization Pitch and Roll Stabilization Barometric Altitude Control Ground Speed Control Hover Trim Control Radar Altitude Control Vertical Accelerometer Cable Angle Control
What pressure does the utility hydraulics system operate at? What about the hoist?
The utility hydraulic pump, located on the accessory drive section of the main gear-box, provides 3000 PSI hydraulic pressure. The hoist winch motor is powered by 1250 PSI hydraulic pressure from the utility hydraulic system.
