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Final Review Commercial Power Plants Carburetor Heat Mixture.

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Presentation on theme: "Final Review Commercial Power Plants Carburetor Heat Mixture."— Presentation transcript:

1

2 Final Review Commercial

3 Power Plants Carburetor Heat Mixture

4 Fuel Injection Auxiliary Fuel Pump Fuel Flow Indicator Vapor Lock Exhaust Gas Temperature Cylinder Head Temperature

5 Mixture Best Economy Mixture Best Power Mixture

6 Abnormal Combustion Preignition Detonation

7 Turbocharging Systems Manifold Pressure Gauge Critical Altitude Service Ceiling Overboost

8 Constant Speed Propellers Blade Angle Pitch Angle Governing Range Propeller Control Efficiency

9 Oxygen Systems Continuous Flow Diluter Demand Pressure Demand

10 Oxygen Masks Oronasal Rebreather –Color Coded Red Pilot Quick Donning –Diluter Demand –Pressure Demand

11 Oxygen Service Aviator Breathing Oxygen Oxygen Duration Charts FBO Never deplete below 50 psi

12 Pressurization Outflow Valve Safety/dump Valve Isobaric Range Differential Range

13 Oxygen Requirements Part 91 –12,500 to 14,000 over 30 minutes –14,000 for crew members –15,000 for passengers

14 Human Factors Hypoxia Hyperventilation

15 Ice Control Systems Anti-icing De-icing

16 Landing Gear Systems Electrical Gear Systems Hydraulic Gear Systems Electrohydraulic Systems

17 Airspeed Limitations V LE V LO

18 Emergency Extension Hand Crank Hand Pump Hydraulic System Freefall System Carbon dioxide pressurized system

19 Fundamental Flight Maneuvers Straight and Level Turns Climbs Descents

20 Four Aerodynamic Forces Lift Thrust Drag Weight When are they in equilibrium?

21 Bernoulli’s Principle As the velocity of a fluid increase, its internal pressure decreases High pressure under the wing and lower pressure above the wing’s surface

22 Controlling Lift Increase airspeed Change the angle of attack Change the shape of the airfoil Change the total area of the wings

23 Angle of Attack Directly controls the distribution of pressure acting on a wing. By changing the angle of attack, you can control the airplane’s lift, airspeed and drag.

24 Angle of Attack Angle of attack at which a wing stalls remains constant regardless of weight, dynamic pressure, bank angle or pitch attitude.

25 Flaps Plain Split Slotted Fowler

26 Ground Effect Within one wingspan of the ground An airplane leaving ground effect will experience an increase in what kind of drag?

27 Drag What kind of drags rate of increase is proportional to the square of the airspeed? Parasite Drag What kinds of drag make up parasite Drag

28 Load Factor Ratio between the lift generated by the wings at any given time divided by the total weight of the airplane.

29 Load Factor A heavily loaded plane stalls at a higher speed than a lightly loaded airplane. It needs a higher angle of attack to generate required lift at any given speed than when lightly loaded.

30 Aircraft Stability Achieved by locating the center of gravity slightly ahead of the center of lift Need a tail down force on the elevator

31 Turns The horizontal component of lift. Load Factor and Turns The relationship between angle of bank, load factor, and stall speed is the same for all airplanes

32 Density Altitude High Hot Humid

33 Surface Winds Headwind or tailwind component –a 10 knot headwind might improve performance by 10% –a 10 knot tailwind might degrade performance by 40%

34 Performance Charts Experience Test Pilots Factory new Airplanes Repeated Tests using Best Results Format -Table -Graphic

35 Cruise Charts Range is the distance an airplane can travel with a given amount of fuel Endurance is the length of time the airplane can remain in the air

36 Cruise Charts Maximum range is at L/D max or best glide speed Maximum endurance is about 76% or best glide speed Generally close to stall speed

37 Excessive Weight Higher takeoff speed Longer takeoff run Reduced rate and angle of climb Lower maximum altitude

38 Excessive Weight Shorter range and endurance Reduced cruise speed and maneuverability Higher stall speed Higher landing speed and longer landing roll

39 Forward CG Effects Higher takeoff speed and ground roll Reduced rate and angle of climb Lower maximum altitude Reduced maneuverability

40 Forward CG Effects Higher stalling speed Reduction in performance caused by increased tail-down loading Reduced pitch authority

41 Beyond Aft CG Effects Decreased stability and increased susceptibility to over control Increased risk of stalls and spins of which recovery may be difficult or impossible

42 Weight Shift Computations Weight of Cargo Moved Distance CG moves Airplane weight = Distance Between Arm locations

43 Elt Frequency 121.5 and 243.0 Battery –1 hour of cumulative use –One half the battery useful life Test during 5 minutes after the hour

44 Diverting for Emergencies Time is of the essence Turn to new course as soon as possible Use rule of thumb computations, estimates and shortcuts

45 Engine Temperature Oil cools the internal portion of the engine High temperature is often a sign of low oil level

46 Heating System Heating in most aircraft is by exhaust manifold-type Crack in the system can allow carbon monoxide into the cabin If your aircraft backfires during run up, have it checked

47 Engine Failure(Takeoff) Lower the nose and maintain a safe airspeed

48 Turbulence Slow to maneuvering speed Maintain a level attitude Do not chase the pitot static instruments

49 Spatial Disorientation Rely on instrument indications Ignore body sensations

50 Emergency Descent Reduce the throttle to idle Roll into a bank angle of approximately 30-45 degrees Set propeller to low pitch ( High RPM)

51 Emergency Descent Extend landing gear and Flap as recommended by the manufacturer Do not exceed V NE, V LE, V FE, or V A if turbulent

52 Best Glide Speed Gear and Flaps retracted Propeller to low RPM (High Pitch) Pitch Trim

53 Best Glide Speed Checklist Any deviation from the best glide speed will reduce the distance you can glide

54 Lost Procedures Climb Communicate Confess Comply Conserve

55 Lost Procedures Radar DF Steer Emergency Frequency 121.5

56 Short Field Takeoff & Landing

57 Takeoff Objective - Knowledge of elements Positive and accurate control of aircraft with shortest ground roll and steepest angle of climb Proper airspeeds V R, V X, and V Y

58 Takeoff –Maintain V X =5/-0 KTS After clearing the obstacle accelerate to V Y +5/-5 Retract the landing gear and flaps after a positive rate of climb or as recommended

59 Common Takeoff Errors Failure to use the entire runway Improper positioning of the flight controls and wing flaps Improper engine operation during short field takeoff and climb out

60 Common Takeoff Errors Inappropriate removal of hand from throttle Poor directional control Improper use of brakes

61 Short Field Landing Consider the wind conditions, landing surface and obstructions –Height of obstructions dictate how steep the approach will have to be

62 Short Field Landing –Descent angle will be steeper than a normal approach. Aim point will be closer to the obstacle –Aim point will be short of the touchdown point –Select a go around point, normally before descending below barriers

63 Common Errors Improper use of landing performance data and limitations Failure to establish approach landing configuration at appropriate time or in proper sequence

64 Common Errors Failure to maintain a stabilized approach Improper technique in use of power, wing flaps and trim

65 Common Errors Improper removal of hand from throttle Improper technique during round out and touchdown

66 Common Errors Poor directional control after touchdown Improper use of brakes

67 Soft Field Takeoff & Landing

68 Common Errors Improper initial positioning of the flight controls or wing flaps Allowing the airplane to stop on the takeoff surface prior to initiating takeoff Improper power application

69 Common Errors Inappropriate removal of hand from throttle Poor directional control

70 Common Errors Improper use of brakes Improper pitch attitude during liftoff –Dragging tail of aircraft on ground

71 Common Errors –Settling back to the runway because of too high or too low a pitch attitude Failure to establish and maintain proper climb configuration and airspeed Drift during climbout

72 Soft Field Landing Maintain crosswind correction and directional control throughout the approach and landing Touch down softly, with no drift, and with the longitudinal axis aligned with the runway

73 Soft Field Landing –Maintain some power to assist in making a soft touchdown –Hold it off to slow airspeed and establish a nose high pitch attitude

74 Soft Field Landing –After touchdown maintain back pressure to keep the nose wheel off the ground –Maintain full back pressure Maintain after landing proper position of the flight controls and taxi speed

75 Common Errors Improper technique in use of power, wing flaps and trim Inappropriate removal of hand from throttle Improper technique during roundout and touchdown

76 Common Errors Failure to hold back elevator pressure after touchdown Closing the throttle too soon after touchdown

77 Common Errors Poor directional control after touchdown Improper use of brakes

78 Steep Turns

79 Enter Steep Turn Heading toward reference point roll into a coordinated turn with an angle of bank of 50 o +5/-5 As the turn begins, add back pressure to increase the angle of attack

80 Enter Steep Turn As you go through 30 o, add power if necessary to maintain entry altitude and airspeed

81 Enter Steep Turn Trim to relieve excess control pressure Begin rollout one half the angle of bank 20-25 degrees before your reference point Look and clear before all turns.

82 –To recover from an excessive nose-low attitude reduce the angle of bank –Add back elevator pressure to raise the nose –Reestablish the desire angle of bank

83 Maintain Altitude +100 Maintain entry altitude and airspeed throughout the entire maneuver During rollout release the back pressure or if using trim apply

84 Common Errors Improper pitch, bank, and power coordination during entry and rollout Uncoordinated use of the flight controls

85 Common Errors Inappropriate control applications Improper technique in correcting altitude deviations Loss or orientation

86 Common Errors Excessive deviation from desired heading during rollout

87 Chandelles

88 Altitude FAA requires the maneuver be performed no lower than 1,500 ft AGL Pick an altitude that is easy to identify on your altimeter

89 Bank Establish but do not exceed 30 o angle of bank Enter using a smooth coordinated level turn

90 Apply Power and Pitch After establishing a level 30 o banked turn start a climbing turn by applying back elevator pressure to attain the highest pitch attitude at the 90 o point

91 Common Errors Improper pitch, bank, and power coordination during entry or completion –Pitch up too fast will cause a stall –Pitch too slow or allow the pitch to decrease will cause you to reach 180 o point at too high an airspeed

92 Common Errors –Adjust power prior to the maneuver to establish cruise flight and increase after bank is established and as pitch is being increased –No other power changes are made

93 Common Errors Uncoordinated use of flight controls –Maintain coordinated flight –Compensate for torque and aileron drag –Check the ball in the inclinometer

94 Common Errors Improper planning and timing of pitch and bank attitude changes –During the first 90 o of turn the bank is constant –At the 90 o point you should have reached the maximum pitch

95 Common Errors –During the second 90 o, pitch attitude remains constant and the bank is slowly reduced –At the 180 o point, the pitch attitude is constant and the roll out to wings level is completed

96 Common Errors –Plan and time the pitch and bank changes while dividing you attention Factors related to failure to achieve maximum performance –Improper pitch –Improper bank

97 Lazy Eights

98 Objective Lazy eights require smooth coordinated use of the flight controls –At no time are you straight and level –Maneuver requires constantly changing control pressure

99 Plan,Orient and Maneuver At 45 o AltitudeIncreasing AirspeedDecreasing Pitch AttitudeMaximum Bank Angle15 o

100 Plan,Orient and Maneuver At 90 o AltitudeMaximum AirspeedMinimum Pitch AttitudeLevel Bank Angle30 o

101 Plan,Orient and Maneuver At 135 o AltitudeDecreasing AirspeedIncreasing Pitch AttitudeMinimum Bank Angle15 o

102 Plan,Orient and Maneuver At 180 o AltitudeEntry AirspeedEntry Pitch AttitudeLevel Bank Angle0 o

103 Common Errors Poor selection of reference points –Easily identified –Not too close Uncoordinated use of the flight controls

104 Common Errors –Maintain coordinated flight –Compensate for torque –Check inclinometer Unsymmetrical loops from poor pitch and bank attitude changes

105 Common Errors –Stalling before reaching the 90 o point –Excessive diving –Rushing the angle of bank Inconsistent airspeed and/or altitude at key points

106 Common Errors –Adjust power after the first maneuver if off entry airspeed or altitude Loss of orientation. Need to observe your reference point as well as your attitude indicator, altimeter and airspeed indicator

107 Common Errors Excessive deviation from reference points –Each 45 o segment must be preplanned and the proper pitch and bank attained

108 Eights-on Pylons

109 Objective –At a given groundspeed there is an associated altitude at which the airplane will appear to pivot about the point and is called the pivotal altitude –The higher the groundspeed the higher the pivotal altitude

110 Objective –In strong wind, altitude changes will be greater e.g. 100 to 200 feet –In light wind, altitude changes will be smaller e.g. 50 to 100 feet –Wind calm means no change to pivotal altitude

111 Determine the Pivotal Altitude To determine the pivotal altitude fly at an altitude well above the pivotal altitude then reduce power and descend at cruise airspeed in a medium bank turn.

112 Determine the Pivotal Altitude The reference line will move back until the pivotal altitude is reached. If you continue to descend the reference line will move forward You can estimate the pivotal altitude by using the following formula

113 Determine the Pivotal Altitude (Groundspeed in knots) 2 =Pivotal Altitude 11.3 100 2 = 885 11.3

114 Perform the Maneuver As you turn into the wind the groundspeed decreases causing the pivotal altitude to decrease causing you to descend to maintain the pivotal altitude

115 Orientation and Planning Remain oriented on the location of the pylons and the direction of the wind Plan ahead Divide your attention between coordinated airplane control and outside visual reference

116 Use Pivotal Altitude Do not use rudder to force the reference line forward or backward to the pylon

117 Common Errors Faulty Entry technique –Poor planning –Not being at pivotal altitude –Rolling into a bank too soon Poor Planning, Orientation and Division of Attention

118 Common Errors –Lack of anticipation of changes in groundspeed –Poor pylon selection –Poor division of attention. Uncoordinated flight control applications and not looking out for other traffic

119 Common Errors Uncoordinated flight control application Use of improper line of sight reference Application of rudder alone to maintain line of sight on pylon – Most Common Error

120 Common Errors –Do not Yaw the wing backward with rudder if the reference line is ahead of the pylon Improper timing of turn entries and rollouts –Usually do to poor planning

121 Common Errors –Rollout needs to be timed to allow the airplane to proceed diagonally to a point downwind of the second pylon

122 Common Errors Improper correction for wind between pylons Selection of pylons where there is no suitable force landing area within gliding distance Large pitch and airspeed changes


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