Specs Flashcards
What are the aircraft dimensions?
14’ tall
47’ 3” long
What is Tail height?
14’
What is wing height?
5’ 4”
What is prop diameter?
8’ 9” diameter
Wingspan?
53’ 4”
Wing area
277.8 square feet
Tail dimensions
17’ wide x 14’ tall
Wingtip radius for turning?
35’ 7”
Emergency exit overwing
1 piece 26” high x 18” wide
No pilot warning if removed
May be opened inside or outside
Dv window
Closed - normal operations
Located on captains side
Ventilation on ground - help smoke evacuations
Passenger door
Air stair type door 24" wide x 53" Secured by 6 locking pins 2 micro switches Approved emergency exit 6 indicator lights
Cargo door
52" H x 53" wide Secured by 2 shoot bolts 3 hook latches 2 micro switches Gas cylinder assist Electric or manual closing Not approved emergency exit
Cargo area
400 lbs Max
Light automatically goes off after 5 minutes
MAU
Computer controls everything
- box full of modules
- integrated avionics system
- Divided into 2 channels for Redundancy
Cockpit display
Consists of 4 units
DU 1-4
Captain
Copilot
Systems
MFD
iNav MFD
Map on the bottom
- can toggle between systems and charts
Make sure to switch to top center display per Planesense!
Monitoring Warning system
Tells when something is wrong
- CAS
- FAS
- Aural Warning
Cas
Crew alerting system
Fas
Aircraft flight alert
Aural warning
Voice call outs and chimes
Red - bad on top
Amber
Cyan
White - state the system is in
What engine is installed?
PT6A-67P
- 1200 Shaft HP
- free turbine design
- reverse flow
Np
Speed of prop
Ng
Compressor speed
Engine is canted…. and why?
Canted 2 degrees down and 2 degrees right
For torque
True or False
Majority of the air compressed is not for combustion?
True
25% for combustion
65% cool combustion
10% for secondary air systems
Describe back of engine
4 stage axial compressor
Bands of air moved opposite directions
Describe center of engine
Centrifugal compressor
Pushes air into combustion chamber
Compressor
Draws air into engine before delivery into combustion chamber
Air not used creates a cushion of air
What is the compressor turbine speed?
39000 max RPM @ 104% Ng
What is RGB?
Reduction Gear Box
Reduces turbine speed low/high planetary gear
steps down
- 30,000 RPM -> 1700 RPM
Explain Exhaust system
Direct exhaust gases with minimal flow restrictions
Accessory Gearbox
Mounted to rear of engine
Low/high press fuel pump FCU fuel control Fuel/Air heat exchanger Oil pumps Generator Starter
Oil Tank
Pumps oil
Bleed Air Valve
Prevents compressor stall
Prevents Reverse flow @ low power
Where does the secondary air come from?
Air within compressor section
Igniters
Provides spark to igniters
4-9 o’ clock position
Comes on automatically ITT less than < 500C
Ng > 10%
True or false
Ignitors
Should be turned on for Heavy Precipitation and strong turbulence
True
Where is ITT probe located?
Between Power Turbine and compression Turbine
Describe oil system
Pressure oil system
Oil drawn from tank
- to filter
- pressure regulating valve
Delivered through core passages
Lubricates all major bearings, accessories, RGB
Scavage oil system
What oil is used?
BP 2380 Turbo
Oil / Fuel heater
Warm oil passes through exchanger to heat up fuel
amount of oil depends on temp of fuel passing
Describe chip detector
Detector attracts ferrous material with magnets
2 detectors
- reduction gear box - accessory gear box
Torque system
Works off of oil pressure which is equivalent to Ng
Torque limiter
Spring thing that vibrates around and measures oil pressure
Limits engine torque below 44.3 psi
Bleeds off Py air to reduce fuel flow from FCU
Fire detection system
Stainless steel tube with Helium
Internal core with Hydrogen
Tube heats up
Pressure increases
Actuated pressure switch
True
ACS must be shutoff when fire is detected
True
Airflow to cabin - stops toxin gases from entering cowling
PCL
Power Control Lever
Controls Ng compressor power speed
Both forward and reverse
MOR lever
Manual Override Lever
Emergency system
Used for uncommanded “NG rollback or engines”
