FT4290 GK Flashcards
Reasons to Abort the start
- ITT exceed 1000C
2.ITT 871-1000C >5sec
3.Normal N1 increase halted - No ITT rise within in Sec of FF
5.Bat Bus Annunciator - PCL is moved or ST READY goes out
When is a motoring run procedure required
If fuel is introduced
red BAT BUS
BAT BUS inop or BAT BUS CWS circuit breaker
red GEN BUS
GEN BUS inop or GEN BUS CWS circuit breaker
red PMU FAIL
PMU Failure
red GEN
Gen inop
red CKPT PX
cockpit over pressurization, Px exceed 3.9-4.0psi
Red CANOPY
Canopy unlocked/unsafe
Red FUEL PX
Fuel pressure in motive flow line <10psi
red OIL PX
Oil PX is….
Below 15 psi
15-40 psi for 5 sec at IDLE
below 40 PSI above IDLE
red OBOGS FAIL
OBIGS sys malf
red CHIP
CHIP detector indicates oil contamination
amber CKPT ALT
CKPT px alt above 19,000 ft
amber DUCT TEMP
environmental duct or defog duct above 300*F
amber HYDR FL LO
HYD res fluid level below 1 QT
amber BUS TIE
Bus tie inop or open
amber FUEL BAL
fuel imbalance exceed 30lbs for 2 min
Fuel probe/EDM fail
amber EHYD PX LO
emergency accumulator @ or below 2400 +/-150 psi
amber OBOGS TEMP
OBOGS above 200*F
amber TAD FAIL
Trim aid device fail
amber L/R FUEL LO
Wing tank below 110lbs usable fuel
amber PMU STATUS
PMU detected in flight fault, or WOW
amber OIL PX
Oil PX is…
15-40PSI at IDLE
40-90PSI above IDLE
Land as soon as possible definition
an emergency shall be declared and a landing accomplished at the nearest suitable landing area considering severity, wx, field facilities, ambient lighting and command guidance
Land as soon a practical definition
emergency conditions are less urgent and although the mission is to be terminated, the degree of the emergency is such that an immediate landing may not be necessary
Suitable landing area definition
hard surface runway, taxiway, or over/underrun
BATT BUS fail effect on configuration
Use emer gear extension
AOA, GEAR/FLAP indication inop
GEN BUS fail effect on configuration
ASI,TAS,VSI,Altimeter, SMU, TAD VHF nav inop, AOA pitot heat inop
fly formation approach/GPS approach, normal gear/flap extension
HYDRAULIC FAIL effect on configuration
-Normal gear/flaps inop below 1800 psi
-EHYD PX LO or HYDR FL LO could be small leak to not trigger fuse, day VMC consider lowering gear
AOA computer fail on TP Stalls
-stick shaker malfunctions do not mean problem with AOA indicator
-Fly known pitch and power
Oil tank capacity
10 quarts
Normal oil level on Dipstick
Between “add” and “max hot”
When to check oil level
w/in 30 min of engine shutdown, 15-20 min most accurate
White numbers on voltmeter
22.0-29.5 VDC
Np limit with counter weights
106%
Vo
227 KIAS 150 KIAS rudder
Vo definition
operating maneuvering speed is speed above which full deflection or abrupt movement in 1 axis will exceed structural limits
0 G limit
5 Sec +/-.25 is considered 0 G
Neg G limit
60 sec
Defog limits for t/o or ldg
do not use
max decent rate when mains 185 +/-5 psi
3.7 Gs 600 FPM
max decent rate when mains 225 +/- 5 psi
5.1 Gs 780 FPM
Barrier limits
-taxi as slow as possible so all gear avoids contact with support doughnuts
-avoid taxi over net barriers if possible
-do not engage raised web barrier
Icing maneuver limits
30* AOB 0-2 Gs
Hydro limits on gauge
Green 2880-3120
white 1800-2880 or 3120-3500
Best glide speed VVI clean
125 KIAS 1350-1500 FPM
Best glide speed VVI Dirty
120 KIAS 1500 FPM
Best glide speed VVI Dirty flaps LDG
95 KIAS 1850 FPM
Best glide speed VVI prop windmilling clean
110 KIAS 2350 FPM
When does stick shaker activate?
Min 5 Kts below stall or 5-10
When does buffet occur?
3 Knots before, turning buffet occurs much before stall
Roll of tendency >60% Torque
Torque roll off often occurs before reaching aft stick
Configuration effect on stall
-Flaps aggravate roll of tendency
-Speed brake and fuel imbalance negligible effect
Parts of a Spin
Post stall gyration
Incipient Spin
Steady State Spin
OCF Definition
Aircraft does not respond immediately and in a normal sense of flight controlls.
Post Stall Gyration
Motions of acft about 1 or more axis immediately following the stall but prior to incipient spin
Spiral definition
Rolling and/or yawing motion of acft, but not steady state as A/S increasing thru 160 KIAS
Why no spins below 10,000 msl
high stress on propeller during the spin on the prop rpm below 80%
Erect spin AOA
Airspeed
Time
Alt Loss
AOA= 18 Units
Airspeed 120-135 KIAS
2-3 Sec per turn
400-500’ lost per turn