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What make air craft to fly?

Discussion in 'Tech, Gadgets & Science Forum' started by Mtazamaji, Mar 30, 2010.

  1. Mtazamaji

    Mtazamaji JF-Expert Member

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    Have u ever asked your self what parts makes Boeing, Airbus or any big aircraft to fly?

    Do u know the four major forces behind the pysics of flying and wich part of the aircraft creates them

    What mechanics happen in to turn the flight left , right up or down

    What is the maximum angle of elevation when and aircraft is flying up and y?



     
    Last edited by a moderator: Jan 4, 2016
  2. Pdidy

    Pdidy JF-Expert Member

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  3. Pdidy

    Pdidy JF-Expert Member

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    Aircraft flight control surfaces allow a pilot to adjust and control the aircraft's flight attitude.
    Development of an effective set of flight controls was a critical advance in the development of the aircraft. Early efforts at fixed-wing aircraft design succeeded in generating sufficient lift to get the aircraft off the ground, but once aloft, the aircraft proved uncontrollable, often with disastrous results. The development of effective flight controls is what allowed stable flight.
    This article describes controls used on a fixed wing aircraft of conventional design. Other fixed wing aircraft configurations may use different control surfaces but the basic principles remain. The controls (stick and rudder) for rotary wing aircraft (helicopter or autogyro) accomplish the same motions about the 3 axes of rotation, but manipulate the rotating flight controls (main rotor disk and tail rotor disk) in a completely different manner

    TURNING OF THE A/CRAFT
    Unlike a boat, turning an aircraft is not normally carried out with the rudder. With aircraft, the turn is caused by the horizontal component of lift. The lifting force, perpendicular to the wings of the aircraft, is tilted in the direction of the intended turn by rolling the aircraft into the turn. As the bank angle is increased the lifting force, which was previously acting only in the vertical, is split into two components: One acting vertically and one acting horizontally.
    If the total lift is kept constant, the vertical component of lift will decrease. As the weight of the aircraft is unchanged, this would result in the aircraft descending if not countered. To maintain level flight requires increased positive (up) elevator to increase the angle of attack, increase the total lift generated and keep the vertical component of lift equal with the weight of the aircraft. This cannot continue indefinitely. The wings can only generate a finite amount of lift at a given air speed. As the load factor (commonly called G loading) is increased an accelerated aerodynamic stall will occur, even though the airplane is above its 1G stall speed.
    The total lift (load factor) required to maintain level flight is directly related to the bank angle. This means that for a given airspeed, level flight can only be maintained up to a certain given angle of bank. Beyond this angle of bank, the aircraft will suffer an accelerated stall if the pilot attempts to generate enough lift to maintain level flight.
     
  4. Pdidy

    Pdidy JF-Expert Member

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    Definition of Angle of Elevation

    The word "elevation" means "rise" or "move up".
    Angle of elevation is the angle between the horizontal and the line of sight to an object above the horizontal.

    The angle formed between the two lines is called the angle of elevation.

    [​IMG]
     
  5. Mtazamaji

    Mtazamaji JF-Expert Member

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    Je Rubani anaweza kuinyanyua ngege kwa nyuzi ngapi? Nilikuwa na soma soma nimeona ni Nyuzi 45. Akizidisha hapo ni kasheshe. Nadhani kwa ndege za kijeshi inaweza kuzidi.
     
  6. Freetown

    Freetown JF-Expert Member

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  7. Mtazamaji

    Mtazamaji JF-Expert Member

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    Lift, drag, thrust and weight ndio fuorr major forces za physics zinaztumi kuelezea kupaa kwa ndege. Je karne hii tuliyonayoo ni vigezo gani mtu anatakiwa kuwa navyo kuwa rubani wa ndege. PGM, PCB au hata HGL au form foru leaver mwenye mafunzo anaweza kuwa rubani mzuri
     
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