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61.103 Requirements for certification
Be 17 years of age
Hold a students pilots certification.
be able to read, write, and speak English.
Comply with all regulations
receive logbook edorsment from instructor who completed train under 61.105B
certificate person is prepared for knowledge test
passed the written exam
received and logged ground and flight training
flight time
you just have 40 hours of flight time
10 hours of flight time must be solo
3 hours of cross country
3 hours of night flight
3 hours under IMC
night take off and landings must be
between end of evening civil twilight and beginning of morning civil twilight (sun is 6 degrees below the horizon)
Flight review
minimum of one hour and one flight training from a authorized instructor
-a review of general operating and flight rules
-a review of nessecary maneuvers
far 61.57 90 day currency
3 take off and landings in the same category, class, and type intended to carry passengers
if at night, must be logged 1 hour after sunset - 1 hour after sunrise, must be full stop.
The pro rata share covers only
fuel, oil, rental, and airport expenditures
pilots can not be compensated for hire but they can be “paid” by
Pro rata share
Salesperson (over 200 hours)
Charity
Rescue
Incidental (to a business)
Production (flight testing)
Towing
Far 61.3 no person may operate as flight crew unless
They have their medical on them
-This doesn’t apply to a student pilot or a person operating under basic med.
A private pilot certification
A government issued ID
-A solo student must have a endorsed logged book.
operating under basic med
have a US current driver liscense
-have held a medical before July 14, 2006
Complete medical education course
complete FAA form 8700-2
state licsened physicanl exam
physical exam every 24 calendar month - proof must be kept in log book
Basic med Limitations
no more then 7 occupants (6 passengers)
maximum take off weight of 12,500 pounds
must be under 18,000 MSL
and below 250 KIAS
to keep up with being current as a pilot
61.56 - flight review
61.57 90 day currency requirements
proficient
skilled and competent in doing or using something.
if you are transiting to a unfamiliar aircraft, you should learn
systems
charcatristics
limitations
performance
procedures
required documents
air worthiness
registration
radio operating license ( out of country only )
operating limitations
weight and balance
the airworthiness remains valid as long as
aircraft remains registered in the US
maintnace is performed according to FAR 43 and 91
AFM (airplane flight manual)
developed by the aircraft manufactor
approved by the FAA
pilots operating handbook
developed by general aviation manufacture assocication
approved by the faa
the POH doubles as AFM
CG
point of which all of the weight is concentrated
Datum
a reference point from which measurements can be compared to
Required Inspections
Annual - 12 calendar months
VOR - 30 days, for IFR only
100 hour - for hire only
Altimeter - 24 calendar months
Transponder - 24 calendar months
ELT -24 calendar moths or 1 hour use of battery
Static - 12 calendar months
annual inspection may take place of
100 hour inspection
A&P with a IA (inspection authority) may sign off, a A&P without a IA can sign of on a 100 hour inspection
ELT inspection
-can be tested the first 5 minutes of every hour
-transmits emergency frequency on 121.5
12 calendar months
1 hour use
half use of battery life
air worthiness directive
one time, reoccurring, emergancy
-reserach at faa.gov
special airworthiness bulletin
alerts, information, and recommends
contains non-regulative information and guidance
purpose of issuance with a Special flight permit
flying to maintance
flying to storage
delivering the aircraft
production flight testing
evacuating aircraft from danger
demo flights
operating above maximum takeoff weight for flight over water/ land without fuel stops.
when apply for a special flight permit
-purpose of flight
-purpose of itinerary
-the crew
-if the aircraft doesn’t comply with any AD
pilot preformed aircraft maintenance
-description of work preformed
-total time in servace (tach time)
-date
-statement explains aircraft is airworthy/not airworthy
(pilots name, signature, certificate number, and type of certification held.)
equipment required for day VFR
91.205
anti-collision lights
tachometer
oil pressure gauge
mainfold pressure gauge
airspeed indicator
tempature gauge
oil tempature gauge
fuel quainty indicator
landing gear position indicator
altimeter
magnetic compass
elt
safety belts
equipment required for night VFR
Fuses
Landing light (if for hire)
Anti-collsion lights
Postion lights
Source of electric energy
operating with INOP equipment
verify equipment is not required by
-type certification data sheet
-KOEL
-91.205
-airworthiness directives.
gravity
is the force that tends to draw all bodies to the center of the earth. the CG may be considered as a point at which all weight of the aircraft is concentrated
lift force = weight force
the aircraft is in a state of equalilbrium and neither accelerates or upward or downward
Thrust
the forward force produced by the power plant or propeller
-if engine power is increased thrust becomes greater then drag and airspeed increases
constant airspeed: thrust=drag
constant altitude: lift=weight
producing thrust
the angle at which relative wind strikes the propeller blade is its AOA. The air deflection produced by this angle causes the dynamic pressure at the engine side of propeller blade to be greater than atmospheric pressure. = creating thrust
how does newtons third law apply to creating thrust
for every action, there is a equal and opposite reaction.
the propeller moves and pushes back air, because of this the air pushes the propeller forward in the opposite direction.
maneuverability
it permits you to maneuver it easier and allows it to withstand the stress resulting from the maneuvers.
controllabilty
It is the capability of a airplane other than respond to your control inputs (especially with attitude and flight path)
static stability
initial tendancy
postive
negative
neutral
Dynamic Stability
Aircraft response over time
postive
negative
neutral
Aileron controls
Movement: Roll
Axes: Longitudinal
Stability: Lateral
Elevator
Movement: Pitch
Axes: Lateral
Stability: Longitudinal
Rudder
Movement: yaw
Axes: vertical
Stability: directional
thrust line
the line where the thrust of the propeller acts.
-power changes can cause a climb or descent.
Dihedral
the tilt on the wings to stop it from side slipping.
EX:the angle of attack on the downward wing is increased because because the wing is moving down and now the air is moving up past it. this causes lift on the wing to increase.
on the upward wing the opposite is happening, the angle of attack is reduced and therefore produces less lift.
airfoil
any surface which provides aerodynamic force when it interacts with a. moving stream of air
what types of wings are there and what type does the DA40 have?
da 40 has regular taper wings
regular, high taper, elliptical
aspect ratio
ratio of wing span to wing chord. primary factor in determine 3 dimensional characteristics
-its all about width and length
angle of incident
angle between hood line and longitudinal axis of the aircraft
ex: wing washout
4 fources of flight
lift = weight
thrust=drag
equal in a steady, unaccelarted flight
Newton third law
for every action, there is a equal and opposite reaction
Beronullis principle:
venturi tube effect
2 types of drag
induced and parasite
induced drag
by product of lift
as wing vortices roll of back of your wing, the angle down, known as downwash. this downwash points the relative wind downward so more downwash we have the more relative wind points downward.
Parasite drag
drag caused by friction of air moving over the aircraft structure, the amount varies with airspeed.
form
interfernce
skin
ground effect
air that is trapped between wing and surface. this happens because of eliminating induced drag. when wing is at height equal to its span, as vortices hit the surface, this vortices becomes dissipated so induced drag becomes less because there is less downwash hitting the relative wind. lift factor is always perpendicular to relative wind.
weight
force exerted by an aircraft from the pull of gravity
CG
may be considered as point at which all weight of the aircraft is concentrated.
Keel effect
a high wing aircraft will have the tendency to turn to the longitudinal axis of the aircraft into the relative wind.
-These aircrafts are made so that the greater portion of the keel is above the CG.
So when the aircraft slips to one side, the aircraft weight and pressure of airflow tends to roll wings back to level.
spiral instability
When the lateral equilibrium of the aircraft is disturbed by a gust of air and a sideslip is
introduced, the strong directional stability tends to yaw the nose into the resultant relative wind
Due to this yaw, the wing on the outside of the turning moment travels forward faster than the
inside wing and, as a consequence, its lift becomes greater.
This produces an overbanking tendency which
angle becoming steeper and steeper.
At the same time, the strong directional stability that yaws the aircraft into the relative wind is
actually forcing the nose to a lower pitch attitude.
A slow downward spiral begins which, if not counteracted by the pilot, gradually increases into a
steep spiral dive
load factor
the ratio of a specified load to the total weight of the aircraft.
as bank increases, load factor increases.
angle of attack
is the angle between the chord line and relative wind
relative wind is the
wind opposite direction of the flight path.
stall happened when
uncoordinated flight
equipment malfuctions
pilot complacency
distraction
turbulence
poor risk managment
imc condition
proficiency
Stall
defintion: airflow seperation
cause: exceeding critical angle of attack
result: lift decreases and lose control
it stalls at the same AOA regardless of airspeed, weight, density altitude.
critical AOA is most exceeded in: low airspeed, high speed, and turning.
stall recovery
pitch down
full prop
full throttle
flaps up
stall phases
inpending - stall warning horn
on set - airframe buffet
full stall - nose drop
stall strip
a still strip will break the airflow over the section where the stall strip is installed, causing the portion of the wing behind the stall strip to stall while the airflow is still smooth over the aileron, thus providing effective roll control in the stall.
-the loss of lift caused by the turbulence over the root section where the stall striped is installed will cause the nose of the airplane to drop and restore the smooth flow of air over the entire wing.
-these strips disrupts the airflow at the high AOA causing the wing area directly behind them to stall before the wingtips stall/
DA40 stall warning
when the AOA is less then stall angle, the airflow through the hole operates the hole
A ball valve in the tube stops air and water flowing from the outside into the cockpit through the still warning system
tail stall
ice accretion will cause the tail to stall at a lower angle of attack and limit the maximum amount of downward lift the tailplane can generate
cause of icing
freezing level 0c and visible moisture
icing changes the shape of a airfoil by blocking or limiting a control surface
result of icing
due to the change of the shape of the wing by ice, the aircraft may not be able to become airborne and, if in flight, the aircraft may not be able to maintain altitude.
landing: stall happenes when slowing down and increasing AOA for approach.
Lift decreases, drag increases, higher stall speed, ineffectiveness of aircraft control, propeller thrust decreases.
corrective action for icing
any icing should be removed before flight
do not fly into known icing conditions
use anti or de-icing equipment
get out of freezing level by descending
nose down stall can happenes
when a aircraft is in a dive of more then 100 knots when pilot pulls back sharply on elevator
-gravity and centrigual force prevent an immediate alteration in flight path, but the aircraft AOA changes abruptly from quite low to very high
-the aircraft would reach stalling angle at a higher speed.
da40 AFM says stall speeds can be changed by
flap, bank, and weight.
How flaps decrease the stall speed
when flaps are extended, the camber line increases at a low aoa.
-flaps extended increase lifting ability, thus reducing airplane stall speed.
how stall speed increases during a turn
in a 2 level G turn, the pilot has to increase AOA to increase lift required to maintain altitude. the pilot is closer to critical AOA than to level flight, therefore closer to higher speed that the airplane will stall with.
effects of weight and balance on performance
reduces flight performance
higher take off speed
longer takeoff run
reduce rate of climb
lower maximum altitude
reduced cruising speed
reduced maneuverbility
higher stalling speed
longer ground roll
SPIN
a aggravted stall that typically occurs from a full stall occurring with the airplane in yawed state and results in airplane following a downward corkscrew path.
cause: a unequal AOA on the airplanes wings (a uncoordinated stall)
result: deciding due to gravity, rolling, yawing, and pitching in a spiral path.
incipeient spin
lasts 4-6 secounds
2 turns
full developed spin
airspeed, vertical speed, and rate of rotation are stabilized
lose 500 feet per 3 second turn
spin recovery
wings regain lift
Erect spin
rolling and yawing in the same direction
-slightly nose down rolling and yawing motion in the same direction
Inverted Spin
roll and yaw in the opposite direction
-the aircraft spinning upside down with yaw and roll occurring in the opposite directions during aerobatic maneuvers.
Flat spin (yaw)
the aircraft yaws about its vertical axis with a pitch attitude level with the horizon.
spin recovery in da40
Power idle
Ailerons neutral
Rudder full deflection
Elavtor foward
Flap in
when rotation stops
rudder netural
elevator pull carefully
Torque
-Based on newtons third law
As the propeller turns clockwise, the engine and airframe rotate counterclockwise.
corkscrew
air from the propeller pushes back and wraps around airplanes fuselage
-This spinning air strikes left side of vertical tail, pushing the tail to the right and yawing the nose to the left.
P factor
the descending blade meets the oncoming airflow at a greater angle than the ascending blade
-Because of this the right blade “take a bigger bite” of air and produces more thrust
Gyroscopic Precession
the resulting deflection force does not happen right where you push, it shows up 90 degrees later.
-usually happens in a tailwheel aircraft.
Horizontal component of lift
the force that pulls the aircraft from straight flight path to make a turn.
Centrigual Force
equal and opposite reaction of the horizontal component of lift
Load factor
for example, a load factor of 3 means the total load on the aircraft structure is 3 times its gross weight
(ex: lift/weight)
slipping turn
insufficient right rudder
skid turn
excess rudder applied during banked turn
Centrifugal force
the apparent force occurring in curvilinear motion acting to deflect object outward from the axis of rotation. for instance, when pulling out of a dive, it is the force pushing you down in your seat.
-centrifugal is not a true aerodynamic force, it is an apparent force that results from the effect of inertia during the turn
Centripetal Force:
the force in curveilinear motion acting toward the axis of rotation.
-it is the force that makes Body follow curved path
Adverse yaw
airplane natural tendency to turn nose in opposite direction of a roll
overbanking tendency
outside wing travels faster then the inside wing, and as a result devoleps more lift. this creates a overbanking tendency thats needs to be controlled by use of opposite aileron when the desired bank angle is reached.
because the outward wing is developing more lift, it is also developing more drag and should be corrected with rudder.
Even though you sent your aileron in the neutral position, it will keep banking and banking.
Vy
maximum rate of climb
-greatest altitude gain over time
-most excess horsepower
Absolute ceiling
the density altitude the aircraft is capable of reaching and maintaing.