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Blk 1-7 > Aerodinamics > Flashcards

Aerodinamics Flashcards

1
Q

RCR

A

Runway Condition Reading

Measurement of friction between the aircraft tires and the runway. Obtain RCR values from base ops.

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2
Q

RSC

A

Runway Surface Condition

Average depth and type of runway surface covering to the nearest one-tenth inch

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3
Q

Hydroplaning

A

Loss of coefficient of friction between the tires and the runway surface

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4
Q

Slope

A

Downhill slope aids in acceleration, shortens take off ground run and CFL.
Uphill slope increases the take off ground run and increases CFL.

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5
Q

Slope Measurement

A

Measured in percent of gradient to the nearest one-tenth of one percent

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6
Q

Maximum Effort

A

is used when nothing else will save life, property or mission objective.

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7
Q

TRT

A

Take off Rated Thrust.
An extremely high thrust setting within the design limits of turbofan or turbojet engine, but compromises some amount of thrust in the interest of extending engine life.

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8
Q

Making a reduced power take off, you must consider these factors

A

Reduced power for runway available.
Reduced power for climb gradient
Reduced power for obstacle clearance
Minimum reduced power

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9
Q

Torque and TIT

A

Turbine Inlet Temperature
Less mass produces less energy at the turbine, propeller loses efficiency with acceleration. Propeller efficiency decreases as air density decreases.

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10
Q

Primary indication of power on turboprop engine

A

Inch-pounds of torque

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11
Q

TF

A

Take off Factor

Combines EPR or N1 with the actual altitude to produce a statement of thrust

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12
Q

APN

A

Air Performance Number

Represents a specific amount of thrust we may obtain with various combinations of EPR or N1, temperature and PA

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13
Q

TOF

A

Take off Factor

adds the effect of DA on the airframe to the thrust of the engines (DA)

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14
Q

GPN

A

Ground Performance Number

incorporates the effec of density altitude on the airframe

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15
Q

COF

A

Climb Out Factor

Aircraft weight to power ratio

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16
Q

Climb Speed

A

Airspeed used during climb, compromises between the airspeed for max rate of climb and the airspeed that produces the most efficient eng operatio (ft/min)

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17
Q

Climb Gradient

A

Height an aircraft will climb in a given horizontal distance (ft/NM)

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18
Q

Vmcg

A

Ground Minimum Control Speed

Minimum speed required to maintain directional control with an outboard engine inop.

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19
Q

Vmca

A

Air Minimum Control Speed
Speed at which an aircraft can exprerience an outboard eng failure and still maintain directional control, full rudder deflection/not more than 5 degrees of bank during takeoff or go around thrust.

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20
Q

CFL

A

Critical Field Lenght
Distance to accelerate on all eng, experience and eng failure and stop within CFL. or continue the take off on the remaining eng

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21
Q

Vr

A

Refusal Speed

Maximum speed an aircraft can accelerate and stop within the remaining runway.

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22
Q

Vrot

A

Rotation Speed

Reached during take off run where the aircraft transitions from a 3 point attitude to the takeoff attitude

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23
Q

Vto

A

Takeoff speed

speed the aircraft must accelerate before lightoff occurs

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24
Q

TPS

A

Tire Placard Speed

Maximum ground speed that a tire can structurally withstand

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25
Q

TLS

A

Tire Landing Speed

TPS speed corrected to either KCAS or KIAS

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26
Q

Vbmax

A

Maximum Braking Speed

Highest speed the aircraft can stop without exceeding the max energy absorption capability of the brakes

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27
Q

Takeoff Ground Run

A

Distance required to accelerate to takeoff speed

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28
Q

Horizontal Stabilizer Trim Settings

A

Compensates for differences between the center of gravity and the center of lift

29
Q

Acceleration Check Speed

A

Time vs speed checks compare acceleration agains elapsed time. the aircraft can be aborted at a predetermined point if performance is substandard

30
Q

Vapp and Vref

A

Approach and Reference Speed

Segments of the approach to landing at approach and or reference speed

31
Q

Threshold Speed

A

airspeed at which we cross the runway line, at a height of 50 feet

32
Q

Touchdown Speed

A

Speed that we actually touchdown on the runway

33
Q

Landing Distance

A

Landing distance based of the aircraft crossing th runway threshold at a height of 50 ft and threshold speed

34
Q

Landing Ground Roll

A

Distance required after touchdown to stop the aircraft

35
Q

Vmfr

A

Minimum Flap Retraction Speed

Minimum safe flap retraction speed

36
Q

Vmco

A

Minimum Climb Out Speed

Speed above stall speed for the takeoff or go around at a specific flap setting

37
Q

Gross Weight Limits

A

limits are: air density, thrust or power, runway length, flap setting, height and distance of obstacles

38
Q

Gross Weight Limited by CFL

A

Computed the entire runway length is the critical field length and working backwards through the CFL chard correction to computer a max gross weight

39
Q

Gross Weight Limited by 3 Engine Climb

A

Allows the aircraft a reasonably safe climb capability. We base climb gradient charts on Temp, PA, thrust and gross weight

40
Q

Gross Weight Limited by Obstacle Clearance

A

Must never exceed a weight which will not allow the aircraft to clear all obstruction in the climbout flight patch

41
Q

RSC

A

Runway Surface Covering

such as snow, slush or water will retard acceleration. Increases the takeoff ground run and CFL

42
Q

RSR Affects

A

Runway Surface Reading

RCR other than 23 (dry runway) affects: stoping distance and increases CFL

43
Q

SID

A

Standart Instrument Departure

Displays obstacle height in feet MSL

44
Q

Delayed Gear Retraction

A

consider its effect on aircraft performance

45
Q

Normal Take off

A

is the most common type

46
Q

Normal Takeoff - Full power takeoff

A

accomplished at max takeoff power with bleed air systems turn on

47
Q

Normal Takeoff - Reduced power takeoff

A

accomplished at a reduced power setting with all normal safety margins retained.

48
Q

Abnormal Takeoff

A

Reserved for situations that require that one or more of the usual safety margins are disregarded.

49
Q

Maximum effort take off

A

We pull out all stops, only limitations is the aircrafts ability to execute a take off.

50
Q

Absolute Ceiling

A

0 ft/min all forces, weight, lift, thrust, and drag will be equal

51
Q

Service Ceiling

A

100ft/min based on the day conditions

52
Q

Formatting Ceiling

A

200ft/min used during arial refueling

53
Q

Cruise Ceiling

A

300ft/min

54
Q

Performance Ceiling

A

400ft/min

55
Q

Combat Ceiling

A

500ft/min

56
Q

Constant Altitude

A

Aircraft climbing to a cruise altitude and remaining there until descent. WORST for ANMPP.

57
Q

Cruise Climb Cruise

A

Aircraft climbing to its optimum altitude, starting a cruise and as the AC gets lighter from fuel burn off, we allow the AC to climb. BEST for ANMPP.

58
Q

Optimum Step Climb

A

Compromise between the Constant Alt and Cruse Climb Cruise. BETTER than Constant but NOT Cruise Climb Cruise.

59
Q

Constant Power

A

Seldom used on large AC. Set cruise power and leave it alone.

60
Q

Constant Speed

A

Once established our cruise speed, will maintain it throughout the flight

61
Q

Maximum Range

A

Gives best gas mileage for the condition of the day. We have to keep slowing down as our AC gets lighter

62
Q

Endurance

A

Flying at the airspeed that will give us our lowest fuel flow

63
Q

Long Range

A

Sacrifice a little range for an increase in airspeed

64
Q

Best Endurance

A

Greatest amount of time when flying a CONSTANT ALT.

65
Q

Maximum Endurance

A

Endurance airspeed while maintaining our OPTIMUM ALT

66
Q

Power

A

Power required for descent is much less than that required for a cruise at the same gross weight and speed

67
Q

Rapid Descents

A

Very high rate of descent, combination of gross weight vs power and the external configuration of the aircraft

68
Q

Penetration Descents

A

Faster than normal change in altitude exist. Power to idle, either extending the flaps or deploying the spoilers.

69
Q

Energy Management During Landing

A

Proven Procedure for coping with wind shear during FINAL APPROACH.

Blk 1-7 (12 decks)

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