Chapter 9 Flashcards
(36 cards)
NATOPS CH 9
AFCS Cable Angle velocity bias
How long does the solution take?
4 way trim
Pilot actions
Why is longitudinal last resort?
AFCS takes 25 seconds to calculate bias and takes into account environmental factors. Make minimal input to keep cable in limits for these 25 seconds.
4 way trim will introduce a 3 KGS bias when pressed, this is removed once released.
Corrective actions in order:
1. Use cyclic trim to command the aircraft in the corrective direction.
2. Fly against lateral trim.
3. Using trim release button, reposition aircraft.
4. Fly against longitudinal trim.
Pilot input against longitudinal trim of 3% for 2 or more seconds will remove the solution and require 20 seconds to reincoperate.
9.1.4
NATOPS CH 9
RADALT usage on Cable angle
Wave swells along with other environmental factors could give the perception of climbing and descending, cross check this against VSI.
If AFCS swaps to BARALT ensure hover altitude is within 5 feet of selected altitude prior to swapping to avoid abrupt AFCS inputs on the collective.
Abrupt collective inputs could result in a loss of TA.
9.1.4.1
NATOPS CH 9
While operating in a salt spray environment what rise of TGT indicates degredations? What are those degredations?
- A TGT rise of 20*C with a constant torque is an indication of engine performance degradation and possible salt encrustation.
- A TGT rise of 40*C for a constant torque is an indication of engine performance degradation that may result in compressor stalls.
9.1.4.2
NATOPS CH 9
What is considered the gate position in dip-to-dip?
- Wings level
- Nose into the wind
- On final approach to the hover
0.3nm during the day
0.5nm at night
9.1.6.2
NATOPS CH.9
During the dip-to-dip pattern, what are three things you cannot do?
- Do not decelerate below 50 KIAS until within 90 of the wind line.
- Do not descend below 90’ until into the wind.
- Do not uncouple the rotorhead with large reduction in collective during the maneuver.
Figure 9.1-2 Step 4.
NATOPS CH. 9
During a manual approach, when do you engage hover coupler?
When helo reaches the hover altitude/attitude with less than 5 KGS
Figure 9.1-2 Step 5
NATOPS CH. 9
What three things are required for hover checks?
- Synchronize RADALT/BARALT
- Check TGT/torque
- State OEI intentions
Figure 9.1-2 Step 7
NATOPS CH. 4
What is considered a steady coupled hover?
70’ hover with less than 4 KGS
Figure 9.1-2 Step 8
This is the Dipping sonar/coupled hover procedure Item 8 required in the SOP
NATOPS CH. 9
Delay a minimum of _________ at trail before initiating departure or raising to seat.
two seconds
Figure 9.1-7 Step 9
NATOPS CH.9
Dip-to-Dip: At night or IMC, turns shall not be initiated until when?
Stabilized flight at 150’
Figure 9.1-7 Step 12
NATOPS CH.9
SAR HAC Considerations
HAC Shall assess each situation and evaluate parameters such as:
- Weather
- Turbulence
- Sea state
-Terrain
- Survivor’s condition
- Aircraft performance capabilities
In the face of extreme pressure to complete a difficult rescue, the HAC must exercise caution and use sound judgement to avoid placing the aircraft and crew in an unnecissarily dangerous position.
9.2
NATOPS CH. 9
In what configurations can the Stokes litter be used?
Only in the SAR/MEDEVAC or Logistics/VERTREP configurations
it does NOT fit in the cabin in the SUW or ASW config.
9.2.1.1
NATOPS CH. 9
What (generally) is the aircrewman doing during the rig for rescue checklist?
preparing the SAR equipment bag, Level “A” med kit, rescue equipment, raft/floatations, smokes, and stowing the Simula seat (as req.)
9.2.1.2
List the SAR safety precautions. “SHH ASH”
SMOKES
- do not fly low over Mk 58, second candle can eject up to 50’
- avoid cutting hands on sharp edges of Mk 58
- do not remove pull ring from Mk 58 until launching (battery exposed and seawater will activate)
- Mk 25 shall not be launched in a hover
- red phosphorous in smokes is highly caustic, do not inhale
HOVER
- TGT rise of 20C = salt encrustation, TGT rise of 40C = poss. compressor stalls
- hover alt. may be adjusted 40-90’
- maintain 1 rotor diameter between parachute and rotor downwash
- hoist may oscillate during recovery which may disengage RAD ALT
HOIST
- cable must be grounded to discharge static electricity prior to pickup
- cable abrasion during hoist can lead to cable failure
- personnel hoist shall not be attempted with a damaged hoist cable
ALL AIRCREW
- when cabin door is open, everyone in cabin shall wear crew harness or remain strapped in seat
- if lost ICS, notify copilot and use hand signals
SWIMMER
- swimmer shall not be required to enter the water to effect the recovery of inanimate objects
- with RIB aux, hoist devices may contact the fwd part of the fuel tank and cause damage or injury
HOIST OPERATOR
- there shall be a hoist operator in the cabin if a swimmer is deployed
- shall wear heavy duty glove during hoist
9.2.2.1
ASIAP DOG RATS SHREB
NATOPS CH> 9
The swimmer shall enter the water and assist the survivor on all rescues except when…
the PIC determines that circumstances will unnecessarily expose the swimmer to danger
9.2.2.3
Name four conditions existing at the scene of a rescue that could dictate procedures to be followed.
- sea state
- water temperature
- condition of the survivor
- proximity to other units
At what sea state is it recommended that the swimmer deploy on the hoist?
Douglas sea states of 3 or above
SAR lost ICS hand signals for the following:
Forward, Back
Right, Left
Up, Down
Hoist Up, Down
Ready for Fwd Flight
Req. Crew Hover
Forward: Elbow bent 90*, fingers extended pointing up
Back: Elbow bent 90*, fingers extended pointing down
Right: Elbow bent 90*, fingers extended up and perform waving motion
Left: Left arm extended, fingers extended
Up/Down: Palm motioning up or down
Hoist up/down: thumb up or down
Ready for fwd flight: circular motion, point forward
Req. crew hover: tap helmet, point aft
Is the wind line rescue pattern required?
No. With a visible horizon, NVD aircrews may maneuver the aircraft into the wind without use of the wind line rescue pattern in order to maintain sight of survivor.
How many yards downwind should you establish a steady hover from the survivor?
50 yards
Night/IMC: In the event of a loss of visual contact with the swimmer, the hoist operator shall…
cycle the rescue light. The swimmer shall illuminate the strobe light or ignite a flare to aid in reestablishing visual contact.
List the five basic rescue methods for overland SAR.
- landing to effect a rescue
- rescue via one or two wheels
- rescue via hoist
- rappelling
- direct deployment
Which overland sar rescue method is preferred?
landing to effect a rescue
more expeditious, reduces pilot/crew fatigue, and is the safest method of recovery
When the landing site is a combination of cross slope and up and down slope, which landing limit should you use?
the most restrictive
