Exam (elaborations)
ATSC-231 Block 3 Turbulence Exam Questions and Answers
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ATSC-231 Block 3 Turbulence Exam Questions and Answers
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ATSC-231 Block 3 Turbulence ExamQuestions and Answers
Loss iiof iiControl, iiAirframe iiDamage, iiand iiPassenger iiComfort/Safety ii- iiAnswers ii-
What iiare iiThree iiHazards iiResulting iifrom iiTurbulence?
Part ii91: ii7.5%
Part ii135: ii7.4%
Part ii121: ii74.2%
In iithe iipast ii30 iiyears; ii3 iifatalities ii
Annually; ii58 iiinjuries ii- iiAnswers ii-How iimany iiInjuries iiper iiYear iiare iia iiResult iifrom
iiTurbulence?
Irregular iimotion iiof iian iiaircraft iiin iiflight, iiespecially iiwhen iicharacterized iiby iirapid iiup-
and-down iimotion, iicaused iiby iia iirapid iivariation iiof iiatmospheric iiwind iivelocities. ii-
iiAnswers ii-What iiis iithe iiDefinition iiof iiTurbulence ii(Aircraft)?
Irregular iifluctuations iioccurring iiin iifluid iimotions. ii- iiAnswers ii-What iiis iithe iiDefinition
iiof iiMeteorological iiTurbulence?
Wind iispeed
Surface iiRoughness
Air iiDensity
Stability
Viscosity
Other iiFactors ii- iiAnswers ii-Transition iifrom iiLaminar iito iiTurbulent iiFlow iidepends iion:
Waves iiand iiEddies ii(or iiVortices) ii- iiAnswers ii-What iiare iithe iiTwo iiTypes iiof iiTurbulent
iiFlow?
A iiregular iioscillation iiof iiwind ii- iiAnswers ii-What iicharacterizes iia iiWave?
Vortices iiembedded iiin iithe iimean iiwind iiflow;
Horizontal iiand iivertical iigusts ii- iiAnswers ii-What iicharacterizes iiEddies?
Irregular, iiquasi-random iivariations iior iigusts ii- iiAnswers ii-Conceptually, iiwhat iiis iithe
iidefinition iiof iiTurbulence?
Macroscale
Mesoscale
,Microscale ii- iiAnswers ii-Three iiScales iiof iiTurbulence
Microscale ii- iiAnswers ii-What iiTurbulence iiScale iiaffects iiAircraft?
50 iito ii1500 iift ii- iiAnswers ii-What iiis iithe iiCritical iirange iifor iiEddy iiSize iito iiAircraft?
p ii= iimv ii- iiAnswers ii-Newton's iiFirst iiLaw iiof iiMotion
F ii= iima ii- iiAnswers ii-Newton's iiSecond iiLaw iiof iiMotion
Coefficient iiof iiLift ii(CL)
Air iiDensity ii(p)
Air iispeed ii(V)
Wing iiArea ii(S) ii- iiAnswers ii-What iifunctions iiare iia iipart iiof iilift?
Maximum iicoefficient iiof iilift
Point iiof iiaerodynamic iistall ii- iiAnswers ii-Critical iiAoA
- iiRatio iiof iithe iitotal iiair iiload iiacting iion iian iiaircraft iito iithe iigross iiweight iiof iithe
iiaircraft.
- iiMeasured iiin iiGs ii(Acceleration iiof iigravity)
iiLift
Load iiFactor ii= ii-------
iiWeight ii- iiAnswers ii-Load iiFactor
Acceleration ii+ iiLift ii= iiWeight
When iian iiaircraft iiexperiences iivertical iigusts, iithe iiload iifactor iiwill iichange, iie.g.
ii(Unaccelerated iiFlight)
^ iiGust iiForce ii(Equal iito iiLift) ii= iiLoad iiFactor iiof ii2 iiGs
v iiGust iiForce ii(Equal iito iiWeight) ii= iiLoad iiFactor iiof ii0.5 iiGs ii- iiAnswers ii-Load iiFactor
iiin iiAccelerated iiFlight ii+ iiVertical iiGusts
- iiThe iihighest iiload iifactor iithat iican iibe iiexpected iiin iinormal iioperations.
- iiAircraft iiis iidesigned iito iiwithstand iithese iiload iifactors iiwithout iistructural iidamage. ii-
iiAnswers ii-Flight ii(or iiLimit) iiLoad iiFactor
- ii1.5 iigreater iithan iiFlight iiLoad iiFactor
- iiProtection iiagainst iiunexpected iiconditions ii- iiAnswers ii-Design ii(or iiUltimate) iiLoad
iiFactor
- iiGusts
- iiAirspeed
- iiWing iiLoading ii- iiAnswers ii-What iiare iithe iiFactors iithat iiAffect iiLoad iiFactor iiin
iiTurbulence?
, Results iiin ii
- iiChange iiof iirelative iiwind
- iiChange iiin iiAoA
Upward iiGust iiTurbulent iiAir
- iiNew iirelative iiwind iivectors iichange iiAoA
- iiCauses iia iihigher iiAoA iiat iithe iisame iiflight iiattitude ii- iiAnswers ii-Vertical iiGust iiAffect
iion iiAoA
- iiSpeed iiof iiAircraft
- iiVelocity iiof iigust ii- iiAnswers ii-What iidoes iithe iiChange iiin iiAoA iiDepend iion?
- iiGusts iicause iia iichange iiin iilift iiand iiload iifactor.
- iiThe iiaircraft iimay iistall iior iiexceed iidesign iiload iifactor. ii- iiAnswers ii-Summary iiof
iiGusts
- iiDetermines iiadditional iilift iiforce iigenerated iiby iigust
- iiSlower iiis iibetter ii- iiAnswers ii-How iidoes iiAirspeed iiaffect iiLoad iiFactor?
The iispeed iiabove iiwhich iiit iiis iiunwise iito iimake iifull iiapplication iiof iiany iisingle iiflight
iicontrol iias iiit iimay iigenerate iia iiforce iigreater iithan iithe iiaircraft's iistructural iilimitations ii-
iiAnswers ii-Definition iiof iiManeuvering iiSpeed
Ratio iiof iiweight iiof iiaircraft iito iiwing iisurface iiarea
iiWeight
Wing iiLoading ii= ii-----------
iiWing iiArea ii- iiAnswers ii-Wing iiLoading
Gust iiLoad iiFactor iiis iiinversely iiproportional iito iiWing iiLoading; iii.e.
ii1
Load iiFactor ii~ ii---------------
iiWing iiLoading
The iiHigher iithe iiWing iiLoading, iithe iiLower iithe iiLoad iiFactor ii- iiAnswers ii-How iiDoes
iiWing iiLoading iiAffect iiLoad iiFactor?
Gust
- iiIVSI ii- iifpm
Acceleration
- iiAccelerometer ii- iiG's
Turbulent iiKinetic iiEnergy
- iiCalculations ii- iim^2/s^2 ii- iiAnswers ii-Magnitude iiof iiTurbulence iiMeasurement
Eddy iiDissipation iiRate ii(EDR)
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