NATOPS prep

Question 1

which pitot tube provides info to ESIS

Answer 1

1 pitot

Question 2

what info is on ESIS

Answer 2

attitude, slip/skid, altitude, airspeed, heading

Question 3

flight control system type

Answer 3

rigid control rod

Question 4

collective routing

Answer 4

collective to torque tube beneath cockpit seats then up left pillar and across to mixing unit. along path is lvdt

Question 5

cyclic routing

Answer 5

cyclic to 2 torque tubes then up right pillar then SAS actuators to mixing unit

Question 6

pedal routing

Answer 6

pedals combine under center console then rods and bellcranks to yaw sas actuator then t/r servo then link in tail boom to pitch change mechanism

Question 7

3 functions of pitch change levers

Answer 7

blade flapping limiter stop
pass pitch change inputs from pitch change links to blades
act as mount for hyd dampers

Question 8

purpose of chinese weights

Answer 8

provide zero pitch return moment to reduce pitch control loads

Question 9

t/r pitch change names

Answer 9

pitch change links connect to crosshead to pitch change horns to blades

Question 10

how many T/R driveshafts

Answer 10

2

Question 11

DC sys numbers

Answer 11

28VDC

Question 12

AC sys numbers

Answer 12

115/26 Vac 400 Hz single phase

Question 13

how to secure main bus

Answer 13

turn off gen sw

Question 14

CB symbology

Answer 14

single block: batt bus
double block: emer bus
nothing: main bus

Question 15

Battery numbers

Answer 15

24V 27Ah NiCd batt
batt hot at 71+-3C

Question 16

what does GCU control for

Answer 16

starter control, voltage reg, overvolt, short circuit protection, reverse current protection

Question 17

AUX GCU job

Answer 17

voltage reg, overvolt, aux bus tie connector, short circuit protec, reverse current protect

Question 18

EXT pwr voltage requirement

Answer 18

28V

Question 19

what’s the AC sys for

Answer 19

VG and SAS actuators

Question 20

ENG name

Answer 20

PT6B-37A

Question 21

eng type

Answer 21

free turbine turboshaft

Question 22

1 of axial compressors

Answer 22

3

Question 23

how is eng mounted to main frame

Answer 23

parallel rod on AGB
tripod of right RGB
bipod on left RGB

Question 24

when does bleed air valve close for normal ops

Answer 24

91%

Question 25

What does the AGB drive

Answer 25

HFSOON high px fuel pump to fcu FCU starter generator oil px pump oil scavenge pump N1 tach gen

Question 26

What is mounted on the AGB

Answer 26

POOF FAS P3 filter oil filler neck oil filter fuel heater fuel filter AGB chip det starter generator

Question 27

where is eng oil tank

Answer 27

area between inlet case and AGB

Question 28

what does RGB drive

Answer 28

main shaft and tail shaft N2 mech governor

Question 29

what does RGB provide support for

Answer 29

ILINER internal torquemeter left/right eng mounts internal freewheeling unit N2 speed sensor ext torque transducer rgb chip detector

Question 30

what kind of sys is eng oil sys

Answer 30

pressurized circulating

Question 31

what does eng oil sys lubricate

Answer 31

agb, gas gen section, power section, rgb

Question 32

eng oil cooler bypass numbers

Answer 32

80-90 C through cooler bypass if backpressure is 35-52 psi

Question 33

which chip detector is not burnable

Answer 33

AGB

Question 34

oil flow path

Answer 34

from tank via px pump to px regulating valve to ext oil filter, to lubricate or cooler then scavenged pump back

Question 35

Inputs to the FCU

Answer 35

P3, twist grip position via RVDT, N2 governor

Question 36

biggest difference between EEC and MEC

Answer 36

EEC uses LVDT MEC uses in line through mixing unit for collective position

Question 37

rotor high and low numbers

Answer 37

108.5 and 96.5

Question 38

when does ITT limit display swap from start to norm

Answer 38

51% N1

Question 39

where are eng oil temp and px sensors

Answer 39

left lower AGB

Question 40

fuel tank quantities

Answer 40

upper 538 lb lower 265 lb each

Question 41

fuel flow

Answer 41

upper tank through flanges to lower cell then through flapper valves to respective pumps through eng oil/fuel heater, then filter assembly then eng driven fuel pump then another pump then fcu to fuel nozzles

Question 42

what is mounted on xmsn

Answer 42

#1/2 hyd pumps, oil cooler fan, aux gen, rpm sensor

Question 43

what acts as sump of main xmsn

Answer 43

xmsn AGB

Question 44

what acts as reservoir for main xmsn

Answer 44

upper case

Question 45

where are chip detectors in main xmsn

Answer 45

AGB and upper case

Question 46

what kind of oil sys is main xmsn

Answer 46

splash and spray type

Question 47

main xmsn oil flow

Answer 47

from upper housing to px pump side of dual pump then to external filter then to oil jets, drains to agb sump, scavenge pump side sends it to ext oil cooler then back to bell housing

Question 48

thermostatic bypass on oil cooler numbers

Answer 48

bypass begins to close at 54C so more goes to cooler at 78 should be completely closed all oil to cooler

Question 49

where is xmsn oil px sensor

Answer 49

xmsn agb

Question 50

where is xmsn oil temp sensor

Answer 50

ext oil filter

Question 51

TR gearbox oil sys

Answer 51

splash type wet sump

Question 52

which hyd sys boosts tail

Answer 52

#1

Question 53

where are hyd rservoirs

Answer 53

right side cabin roof

Question 54

nominal px of hyd sys

Answer 54

1550 psi

Question 55

hyd fluid flow

Answer 55

reservoir to pump to filter group to by accumulator to servos back to filter group back to reservoir

Question 56

what differential px do hyd filter pdis pop

Answer 56

70 psi

Question 57

when does servo off caution turn on

Answer 57

less than 1138+-50 psi

Question 58

when does hyd overperssurization valve relieve

Answer 58

1640-1850 psi

Question 59

where are hyd px sensors

Answer 59

in px line after filter

Question 60

total number of linear actuators

Answer 60

5