pa44-180 : POH 7 Flashcards
systems
how many occupants can this aircraft hold
4
what is the luggage compartment capacity
200 lbs
what is the nose cone made out of?
fibreglass
are aerobatics prohibited in this aircraft?
yes
what is the fuselage
a semi-monocoque structure
what kind of wing do we have?
semi-tapered design
what are the four different types of wings
plain flaps
split flaps
slotted flaps
fowler flaps
describe the plain flap
is a simple hinged portion of the trailing edge that is forced down into the airstream to increase the camber of the airfoil
describe the split flap
is a plate deflected from the lower surface of the airfoil. Creates a lot of drag because of the turbulent air between the wing and deflected surface
describe slotted flap
similar to the plain flap, but moved away from the wing to open a narrow slot between the flap and wing for boundary layer control.
- may cause a slight increase in wing area, but the increase in lift is insignificant
describe the fowler flap
is used extensively on larger airplanes.
when extended, it moves down, increasing the camber, and aft, casuing a significant increase in wing area as well as opening one or more slots for boundary layer control
what makes up the empennage
vertical stabilizer
all-moveable horizontal stabilator
rudder
where is the stabilizer mounted
on top of the vertical fin and it incorporates an anti-servo tab that is longitudinal stability and trim
what kind of engines does this aircraft have
Lycoming four cylinder, direct drive, horizontally opposed fuel injected engines
what is each engine rated as
180 hp @ 2700 RPM @ sea level
how are the engines cooled
air cooled and equipped with oil coolers with low temp bypass
which direction does the left engine rotate? right rotate?
left : clockwise
right : counterclockwise
should the alternate air be used while on the ground?
no, it would allow for dust and other contaminates to enter the system
what source of air should always be used for takeoff
the primary (filtered) induction source
what kind of propellers does this aircraft have?
counter-rotating
how many blades is each of the props
two blades
what kind of propellers does this aircraft have
two blades
constant speed
controllable pitch
feathering
where are the propellers mounted to
directly to the crankshaft
pitch is controlled by
oil and nitrogen pressure
what drives the propeller toward the high RPM or unfeather position
oil pressure
what drives the propeller towards the low RPM or feather position
nitrogen pressure and a large spring
what does the prop governor control
engine speed by varying the pitch of the propeller to match load torque to engine torque in response to changing flight controls
where does the unfeathering accumulators store engine oil
under pressure from the governors, which is then released back to the governors for propeller unfeathering when the propeller control lever is moved out of the feathered position
what is a feathering lock operated by
centrifugal force
what prevents feathering during engine shutdown by making it impossible to feather any time the engine speed falls below 950rpm
feathering lock
the controls (throttle, mixture and propellers) utilize what kind of controls
leflon-lined control cables to reduce friction and binding
throttle levers are used to adjust
engine mp
when is a CAS caution triggered
higher than 400ft AGL
manifold pressure lower than 14”
landing gear not down and locked and flaps in the 2nd or 3rd notch
when is a CAS warning triggered
lower than 400ft AGL
manifold pressure lower than 14”
landing gear not down and locked and flaps in the 2nd or 3rd notch
the propeller control levers are used to adjust
propeller speed from high RPM (low pitch) to feather (high pitch)
when the alternate air lever is in the down (open) position
the engine is operating on unfiltered, heated air
what are cowl flaps used for
regulate colling air for the engines
the primary flight display displays
airspeed
attitude
altitude
heading information
what is the primary function of the PFDs
provide attitude and heading data for from the AHARS and ADC
what does the ADC provide
airspeed
altitude
vertical speed
air temp
warning messages
repeating triple chime
caution messages
non-repeating triple chime
advisory message
non-repeating single chime
what does the warble tone mean when we are preflighting and starting the aircraft
the autopilot disconnect and preflight test complete
what kind of gear does this aircraft have
hydraulically operated, fully retractable, tricycle landing gear
on takeoff, landing gear should be retreated before an airspeed of
109 kias is exceeded
the landing gear may be lowered at any speed up to
140 kias
hydraulic pressure for gear operation is furnished by an
electrically powered, reversible hydraulic pump
how is the landing gear pump activated
by a 2-position gear selector switch
when hydraulic pressure is exerted in one direction the gear is,?
and when it is exerted in the other direction the gear is ?
retracted
extended
how long does gear extension or retraction normally take
between 6-10 seconds
landing gear down indications
solid green
landing gear up indications
hollow white circles
landing gear is transit indications
crosshatches square
landing gear abnormal / unknown gear position indications
solid red circles
what determines when the gear are in the full up or down and locked positions
microswitches in the landing gear system
when is the check gear cas message activated
when gear is not down and locked when the mp is below 14” on either one or both engines
when the gear selector switch is in the UP position when the airplane is on the ground
when the gear is not down and locked when the wing flaps are extended to the second or third kotch positions
Check gear aural alter triggered by flap position can only be silenced by
retracting the flaps or by extending the landing gear
where is the squat switch located
on the left main gear
what does the squat switch do
prevent the hydraulic pump from actuating when the battery master switch is turned on
if the landing system loses it hydraulic pressure, what helps the gear come down
gravity
if you have to emergency extend the gear, what must you do before doing so
you must put the landing gear switch in the down position to prevent the pump from trying to raise the gear
where is the hydraulic reservoir for the landing gear operation
through a panel in the baggage compartment
the nose gear is steerable how many degrees
30 degrees arc on either side
the struts for the landing gear are
air-oil assemblies
what are all normal braking needs
two single disc
double puck brake assemblies
what is the purpose of flaps
reduce landing speeds and glide path control
how much fuel is stored in each nacelle
55 gallons
how much fuel is unusable per nacelle
1 gallon
what is the total usable fuel for this aircraft
108 gallons
what is the minimum fuel octane
100
the fuel tank vents are what kind of feature
anti-icing design to precent the formation of blocking the fuel tank vent lines
are there back up fuel pumps
yes, there are auxiliary electric fuel pumps
what are the auxiliary fuel pumps controlled by
rocker switches
what positions do the electric fuel pumps should be
on during takeoff and landing
before each flight, fuel must be drained from
the low points in the fuel system
when the fuel tanks are on XFEED, it will draw fuel from
the tank on the opposite side
how many volts and amps is the alternator
28 volts 65amps
an overvoltage relay in each alternator circuit prevents
damage to electrical and avionics equipment by taking it offline if it exceeds 32 volts
how many volts and amp is the battery
24 volts 13.6amps
where is the battery located
in the nose of the aircraft
what does the emergency bus power
standby instruments
PFD functions (except Com2 and Nav2)
the emergency bus is sized to provide this functionality for a minimum of
30 minutes
the emergency battery is
diode isolated from the electrical power which allows for the system to charge the emergency battery during normal operations
what is the emergency battery voltage
23.3 volts prior to flight
the essential bus overcurrent protection is provided by a
70 amp batt circuit breaker
each alternator overcurrent protection is provided by a
80 amp tie bus L altr and R altr circuit breakers
avionics bus overload protection is provided by
25 amp avionics bus circuit breaker
overload protection is provided by what for the non essential bus
70 amp non-ess bus
anti-collision lights should not be operating when flying
through cloud, fog, or has
where is the single pitot head installed
bottom of the left wing
a partially or completely blocked pitot head will
give erratic or zero readings on the instruments
what kind of heater do we have on the aircraft
a janitrol combustion heater
which tank does the heater pull from and how much
the left tank at about 1/2 gallon per hour
how to turn the heater off on the ground
turn the three-postion switch to FAN for two minutes with the air intake lever in the open position
how to turn the heater off in flight
leave the air intake lever open for a minimum of fifteen seconds after turning the switch to off
how big in the baggage compartment
24 cubic ft
when is the STALL….STALL aural alert activated
between 5-10 knots above stall speed
where are the lift detectors located
on the leading edge of the left wing, outboard of the engine nacelle
when are the inboard detector activated
when the flaps are in the 25 and 40 degrees position
when are the outboard detector activated
when the flaps are in positions less than 10 degrees
the ELT test should be conducted
only the first five minutes of any hour limited to three audio sweeps
