Aircraft Primary Control
Transcript of Aircraft Primary Control
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Aircraft Primary Control
Systems
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Learning Outcomes & Objective
• To attain the knowlege on the aircraft!rimary flight control system"
• At the en of the session# the caniate
must be able to answer a short oral $ui%"
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Terminologies• Angle of attack( The angle between the wing
chor line an relative airflow"
• Sli! or ski! ( Aircraft eviates outwar or inwar
from its turning !ath"• )ank( Cor!orate turning of the aircraft with an
incline angle"
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Aircraft Stability an Control
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• An aircraft nees a!!ro!riate controllabilityan the best !ossible stability in its flight"
• Stability( resistance to change from its initial
state of motion# it refers to how an aircraft
res!ons to changes in angle of attack# sli! or
bank from steay moe of flight"
• Control( controllability or maneuverability is the
res!onse of the control in!uts from the !ilot"
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Aircraft Stability an Control
• The stability an control are very mucho!!osites"
• An aircraft without sufficient stability will be
ifficult# !ossibly even angerous to fly" Onthe other han if the aircraft is too stable
that it cannot be controlle that will also be
angerous"
• Therefore# the esign of the aircraft
becomes a com!romise between control
an stability"
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Aircraft control a-es
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• /eference frame in stuying the aircraftcontrol an stability which is imaginary
attache to the aircraft"
• These three reference a-es are rightangle at each other an !ass through the
centre of gravity of the aircraft"
• Any motion of the aircraft can beirectional an0or rotational movements in
these a-es with many !ossibilities of"
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Aircraft control a-es
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Aircraft control terms
• Pitch
• 2aw
• /oll
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Pitching • The motion of the aircraft rotation about the
lateral a-is 4 nose5u! or nose5own6"
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2aw
• 2aw is the rotation of an aircraft about thevertical a-is"
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/oll• The rotation of the aircraft about the
longituinal a-is"
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Primary :light Controls
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Ailerons
•;sually mounte on the T< of the wingnear the wing ti!"
•!rovie lateral 4or roll6 control of the
aircraft"
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/uer
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• >ounte on the vertical tail!lane an
!rovies the irectional control of the aircraft
about the vertical 4or normal6 a-is"
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?ui%
• Label Three major a-es an !rimarycontrol surface systems for them in the
given iagram"
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