2P board #1 Flashcards
5 steps for emergencies
Maintain control of the aircraft
Alert Crew
Determine the precise nature of the problem
Complete the applicable emergency procedure or take action appropriate for the problem.
Determine landing criteria and land as required
Immediate Landing/Ditching
Crew and passengers - alert Shoulder harness - locked External cargo/stores/fuel - jettison/dump as required Searchlight - as required MAYDAY/IFF - TRANSMIT/EMER In the flare Windows - jettison as required After landing PCLs-off Rotor Brake - ON Copilot collective - Stow Pilot HCU - Stow After all violent motion stops: Egress
HMU Functions
Rapid Engine transient response through collective compensation
Acceleration Limiting
Ng governing
Ng Overspeed protection
Automatic fuel scheduling for engine start
Flameout and compressor stall protection through anti-ice/start valve
ODV
Traps fuel upstream in the fuel/oil heat exchanger so priming is not required for start
Returns fuel to the HMU for hotstart or Np overspeed
Main fuel flow to the 12 fuel injectors
Purges main fuel manifold overboard after shutdown to prevent coking
Transmission Limits
Temp: -50 to 105 cont 105 to 120 precautionary 120 max PX: 20 min 20-30 idle transient 30-65 Continuous 45-60 level flight 65-130 precautionary 130 max
Abort start
PCL - Off
Eng ignition switch - off
if eng oil pressure indicating
Starter - engage
Caution: failure to stop fuel flow may result in engine overtemp
Abort start reasons:
Ng not 14 within 6 seconds
No oil px within 30 seconds
No lightoff within 30 seconds of PCL to idle
Starter dropout before 52% Ng
TGT likely to exceed 851 before idle speed
Stab Check
34 to 42 degrees down no stab caution, auto PBS ON
W: Helicopter shall not be flown if the stab fails any check
Press stab TEST button
Moves 5-12 degrees up STABILATOR caution and Master caution with tone (do not silence)
STAB AUTO CNTRL -ON, tone stops caution gone, 34-42
Hold Man slew switch UP should be 5-10 deg up within 4-8 seconds, caution, master caution and tone, can silence
Man slew to 0
AUTO - on 34-42
Head check
Blade lock pins engaged
Pitch lock pins retracted
Gust lock disengaged
Rotor spread light how many microswitches required
8 (2 for each blade (lockpins))
Retreating Blade stall causes
High speed, gross weight, density altitude, power
Retreating blade AOA must be increased to equal the power requirement and eventually stallswill stall, feel it as vibration and pitch up, because forward blade has more lift and phase lag causes nose to come up
Blade stall recovery SCAAR-G
Severity of manuever decrease Collective pitch decrease Airspeed decrease Altitude decrease Rotor RPM increase Gross weight decrease
Electrical Failure
Safe altitude airspeed establish
Stabilator - check position, slew as required
W: exceeding airspeed versus stab andlge limits may result in unrecoverable pitch angles
N: Stab position indicator will be inop with no ac power
APU emergency start procedure - perform
CMPTR PWR/RESET, SAS1, SAS 2, TRIM, AUTO PLT, STABILATOR AUTO CONTRL - ON
W: loss of electrical power will activate anti-ice, reducing max trq by up to 18 % and 49% with malfunctioning inlet anti-ice
Stab vs. Airspeed limits
0 - 150 10-100 20-80 30-60 40-45
1 LDI
#1 RSVR LOW 1 tail rotor servo turned off - with caution Backup pump turned on 2 trail rtr servo on Leak stops, leak in tail rotor Leak doesnt stop Complete loss of 1 reservoir fluid 1 HYD pump caution Backup pump supplies to 1 tail rtr servo and 1 primary servo, (2 tail rtr servo on advisory off) pilot action yes 1st off (#1 HYD PUMP, #1 PRI SERVO PRESS, #1 RSVR LOW, BCKUP ON) NO Leak stops, leak upstream of NO.1 transfer module Leak in primary servo 1st stage BCKUP RSVR LOW Loss of backup reservoir BACKUP pump on advisory off #1 HYD PUMP #1 PRI SERVO PRESS #1 RSVR LOW #1 TAIL RTR SERVO BACKUP RSVR LOW Loss of tail rotor servos
Control Mixing
Mechanical: Collective to yaw Collective to lateral Collective to longitudinal Yaw to longitudinal
Electronic compensation:
Collective/airspeed to yaw
Collective to yaw
Cause: Main rotor torque, nose yaws right when collective incresed
Tail rotor thrust is increased
Collective to Lateral
Lateral lead (tail rotor propeller), Drifts right when collective is increased
Rotor disc is tilted left
Collective to longitudinal
Rotor downwash on stab, nose pitches up and helo drifts aft
Rotor disc tilted forward
Yaw to Longitudinal
Tail rotor lift vector, nose pitches down and helo drifts forward when left pedal is applied
Rotor disc is tilted aft
Collective airspeed to yaw
Camber of tail pylon, nose yaws left as airspeed increases
Trim input proportional to collective position and airspeed
SOP POCL
During dipping sonar training operations Payed out cable length shall be no more than half the ceiling up to 1000 ft. When ceilings are above 1000 ft POCL shall be no more than 500 ft below ceiling.
During operational ASW involving a submarine, under conditions that preclude a freestream recovery, then POCL need not be restricted. However, ORM shall be conducted to minimize the risk to the transducer assembly in the event of a malfunction.
Radius of action
Shipboard radius of action is 150 NM or max reliable navigation/comm range
One way flights shall be limited to 150 NM ship to ship and shore to ship and 200 NM ship to shore
Wash Rack use
Should be utilized after over-water hovering, shipboard operations, unprepared surface landings, or anytime the cleanliness of the aircraft degrades visibility.
Prior to taxiing through, ensure sonobuoy cover, transmission drip pan, and cargo hook cover are installed and all scuppers are closed. The HAC shall minimize direct water spray into MTS and RADALT antennas
Do not taxi through with: M299 luancher, torpedo, sonobuoys, chaff/flare buckets
Simulated EPs at night
Single engine approaches and landings to a prepared surface with adequate overrun and underrun Single engine running landings Boost-off and failed SAS/AFCS Simulated lost ICS STAB auto mode failure
RADALT use
During night overwater flight below 500 ft AGL consideration should be given to setting the DH no lower than 10 percent less than current altitude
SOP WX
500-1
If positive radar control and a CCA or PAR is available for recovery, minimum launch weather mins are 200/ 1/2
Minimum altitude
Overland: Populated - 1000ft AGL,
Unpopulated - 500 ft AGL
Overwater - day 50 ft AGL (intended for operational or tactical training flights
Unaided night - 150 ft AGL
NVD - 100 ft AGL
Coupled hover - 70 ft AGL (may reduce to 40 to conduct live hoisting at PICs discretion
Low level - 200 ft AGL
SACT - day - 100 ft AGL
Night 500 ft AGL
Instrument currency SOP
2 hours within 60 days, may be satisfied in SIM, Must be regained prior to flying any other missions as PIC
Night currency SOP
2 hours within 45 days, 45-60 day to night transition with CO approval, after 60 shall fly with night current PIC
AW Dip currency
LVL 2 - 2 dips within 90 days
LVL 3 and above - 2 dips within 180 days
Recurrency - 2 dips with current aircrewman
can be done in sim
Popped fasteners
TGB 2 in a row 3 total
IGB 2 in a row 3 total
Vertical tail driveshaft 2 in a row 2 total
Other tail driveshaft 1 total
Corner fasteners should be fixed as soon as practicable by qualified maintenance personnel
H2P/H2P
Simulated eps movement of PCLs, night coupled approaches, 180 degree autos are prohibited
Shall be approved by Ship and squadron CO, shall be day vmc non tactical training flight
Crew rest SOP
Shall not be scheduled to brief a flight event until 10 hours after completion of post-flight duties
Crew rest CNAF
Shall not be scheduled for continuous alert and/or flight duty in excess of 18 hours, if exceeding 18, 15 hours of off duty time
Shall include an opportunity for 8 hours uninterrupted sleep
Other than airfields CNAF
Military requirement exists for such a landing
Adequate safeguards are taken to permit safe landing and takeoff operations without hazard to people or property
There are no legal objections to landing at such nonairfield sites
CO can waive for SAR operations
Operational necessity
A mission associated with war or peacetime operations in which the consequences of an action justify accepting the risk of loss of aircraft and crew
Pax transfer overwater @ night
Ship launches and recoveries shall be made during
In cases of MEDEVAC, qualified medical attendant who is current in approved water survival training and has been properly briefed on egress may be transferred at night with approval of ships CO
Does not preclude troop movement in support of amphibious excercised, VBSS or specops
Alternate Airfield requirements
Forecasted weather ETA +_ 1 hour
destination 0-0 need alternate 3000-3
Dest - published mins up to but not including 3000-3
Non precision published mins plus 300-1,
precision published mins plus 200-1/2
Dest 3000-3 or better
no alternate required
Can’t use PAR minimums for planning
Takeoff mins CNAF
Minimums for runway in use but no less than 200-1/2 for precision or 300-1 for non precision
Flight CNAF definition
One or more aircraft on a common mission
for helicopters flight begins when aircraft lifts from a rest or commences ground taxi and ends when rotors are disengaged or stationary for 5 minutes
Non essential flights
Flights of a routine business nature for which commercial or other military transportation could be more economical
Flights for any officer or group of officers, the sole purpose of which is the convenience and or presige of the officers concerned
Repeated flights to the hometown area of flight personnel
Flights coinciding with major sports events or civic celebrations
Flag or general officer embarked
Embarked passenger can excercise authority to command the aircraft, and thereby assumes full responsibility for the safe and orderly conduct of the flight. Shall give due consideration to the judgment of the PIC
