Chapter 9, 11 Flashcards
While operating in a salt spray environment, a TGT rise of 20C or more for a constant torque is indicative of what? 40C?
20*C is an indication of engine performance degradation and possible salt encrustation
40*C is an indication of engine performance degradation that may result in compressor stalls
What is considered the gate position in dip-to-dip?
aircraft wings level, nose into the wind, and on final approach to the hover
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.
When can you engage hover coupler?
When helo reaches the hover altitude/attitude with less than 5 KGS
What three things are required for hover checks?
- synchronize RADALT/BARALT
- check TGT/torque
- state OEI intentions
What is considered a steady coupled hover?
70’ hover with less than 4 KGS
Delay a minimum of _________ at trail before initiating departure or raising to seat.
two seconds
Dip-to-Dip: At night or IMC, turns shall not be initiated until when?
stabilized flight at 150’
In what configurations can the Stokes litter be used?
the SAR/MEDEVAC or Logistics/VERTREP configurations
it does NOT fit in the cabin in the SUW or ASW config.
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.)
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
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
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
What is the required power margin for VERTREP per NATOPS?
6% between HOGE and CRP
What is power available defined as?
a continuous XMSN torque limit or TGT limiting with contingency power selected
VERTREP: What four things will the PNAC check once the load has been lifted off the deck?
Ng, TGT, torque, and Nr prior to transitioning to forward flight
The signals received from the LSE and aircrewman are advisory in nature with the exceptions of…?
“HOLD” and “WAVEOFF”
How is formation bearing maintained at night?
by vertically aligning the closest stabilator light and the tail cone light on the lead aircraft
What is the horizontal separation between helos if only two form lights are distinguishable? 1? 4?
Two: 2-4 rotor discs (optimal)
One: > 4 rotor discs (too far)
Four: < 2 rotor discs (too close)
When can you execute simulated EPs over unprepared surfaces where an autorotative state is entered?
if recovery is made at no less than 500’ AGL / 40 KIAS
What is the recommended / optimum airspeed for practice autos? for max glide?
80-85 KIAS optimum
100 KIAS max glide
What is your target Nr in the descent during practice autos? Why?
Nr 101-105%
aids in mitigating the effects of the EDECU attempting to govern the engines