Operation of Systems Flashcards
Describe Flight Controls (Primary and Secondary)
Primary:
Pitch: Stabilator - pulleys/cables to yoke.
Roll: Ailerons - pulleys/cables to yoke.
Yaw: Rudder - pulleys/cables to pedals.
Secondary:
Trim
Flaps
Power-plant
Lycoming IO-360-C
200hp @ 2700rpm
Fuel injected
Airframe
Aluminum Semi-monocoque
Stabilator
incorporates anti-servo tab
Ailerons & Rudder
Interconnected bus springs to help with adverse yaw
Flaps
Slotted.
Manual 4-position handle with push button on end to unlock:
F0 - 0°
F1 - 10°
F2 - 25°
F3 - 40°
Cowl flaps
Manual levers below throttle (don’t confuse with alternate air)
3-position:
- closed (up)
- intermediate
- open (down)
Alternate air
Manual 2-position levers immediately below pwr quadrant: closed (up) and open (down).
Air filter bypass
Heated by exhaust tube
Max CHT and Oil T
475°
245°
How to cool an overheated engine
v Pitch (reduce); ^ Airspeed (increase)
v Pwr (reduce)
^ Mix (enrich)
v open cowl flaps
Propellers
Counter rotating (left vs right engine)
Constant-speed / controllable pitch
Full feathering
How to Feather Propeller
Move Prop Control - FULL AFT
> 800 rpm
How is the propeller pitch controlled?
Controlled via the prop control lever adjusting the governor that control oil pressure to the prop hub.
High RPM / Low Pitch
- Oil pressure from governor (prop control)
- Aerodynamic force
Low RPM / High Pitch
- Counter weights
Anti-feathering lock
Centrifugal anti-feathering lock
- prevents feathering
impossible to feather < 800rpm
feather before 800rpm
Landing gear
- configuration
- retractable
- how is it held up/down
- actuation
Tricycle
Retractable - electric hydraulic pump
- Held up with hydraulic pressure
- naturally wants to come down due to gravity, aerodynamics, and spring assist
- held down with spring loaded hooks
Landing gear is held up with…
…hydraulic pressure.
What would happen if the landing gear system loss pressure or had a big leak?
The landing gear is held in the up position with pressure, so the landing gear would extend down if pressure was loss do to a leak.
The gear unsafe light may illuminate as the up limit switches are no longer contacted.
Squat switch
left main gear
Oleo > 8” completes ePump circuit
“Horn” - up & on ground
Gear warning horn
Power < 14” and landing gear is still up.
Gear lever is put in the up position with weight on wheels.
How do the Nav Light affect the Landing Gear system?
The landing gear indicator light are automatically dimmed when the nav lights are on.
What can be done if you don’t see landing gear indicator lights?
Turn off navigation lights.
Swap lights around incase it’s a bulb out.
Cycle gear.
Gear extension flow and checklist.
- CBs
-Master
- Alternator
- Nav lights
- <100 knots
- gear lever down
- pull em extension lever
- check indicator lights
Gear indicators
3G - dn (nav lgts dim)
Red - unsafe
Horn - up <14” OR up w/ squat switch
Lights - pull & move if suspect burnt bulb
Manual Gear Extension
CBs
Master
Alternator
Nav lgts
<100
check 3G
Gear lover down
Pull em lever
Fuel System
98 tot / 93 use
100/130 octane
Sumps at low points
Outer tank (vented cap)
Inner tank
Selector on/off/crossfeed
Filter
ePump
Pump
Fuel distribution manifold
Injectors
Fuel P
F Flow
