18 WWW.GOFLY.ONLINE Y ONLI NE FLI GHT SCHOOL In a descent, the weight of the aircraft works with gravity, reducing the need for thrust. Lift is reduced, and drag balances the reduced forward speed. In a zero-thrust glide, such as in engine-out conditions, the thrust component is essentially nonexistent, and the descent is controlled purely by managing airspeed and angle of attack. The aircraft relies on the balance between weight and drag to maintain a stable glide, with no thrust available to counteract drag or aid in prolonging the glide. In a climb, excess thrust is required to overcome both drag and the component of weight acting against the direction of flight. The aircraft’s weight now has a horizontal and vertical component, with the vertical portion opposing lift. To sustain the climb, the thrust must not only counter drag but also provide enough force to overcome this vertical weight component. If excess thrust is insufficient, the climb rate will decrease, and the aircraft may settle into level flight or descend. In a balanced level turn, lift must equal weight to prevent descent, but banking alters the lift force. A portion of the lift is redirected horizontally, known as the Horizontal Component of Lift (HCL), which pulls the aircraft into the turn, while the remaining vertical component counters the weight. To maintain altitude, the pilot must increase the angle of attack to generate extra lift. Centripetal force, driven by the HCL, keeps the aircraft turning, and overbanking or underbanking may require aileron adjustments. Increased drag during a turn may require additional power to maintain airspeed. Stable glide or zero thrust descent Excess thrust is required in a climb In a balance turn we can is the HCL
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