ESDU 01010
Loading on a rigid aeroplane in steady lateral manoeuvres.
Abstract:
ESDU 01010 describes the loading characteristics of a rigid aeroplane during steady lateral manoeuvres which include a steady horizontal turn, steady horizontal straight motion with an engine out and steady straight horizontal sideslipping flight. The overall symmetric (longitudinal) and antisymmetric (lateral) aerodynamic and inertial loads and moments on an aeroplane in a steady turning manoeuvre involving sideslip and bank are identified. The longitudinal and lateral equations of motion are formed and the conditions for independent longitudinal and lateral motion are established. The equilibrium equations to determine the longitudinal characteristics of wing-fuselage lift, tailplane lift, aeroplane angle of attack and elevator deflection are developed for cases when the longitudinal and lateral equations of motion are both independent and interdependent. The three steady lateral motions are identified as special cases of the general steady equations and it is shown how to determine the three lateral unknowns of aerodynamic sideforce on the fin, asymmetric rolling moment on the wing and angle of bank. Equations for the loading distributions, together with the bending moment and torque distributions, on the wing, tailplane, fin and fuselage are developed.ESDU 01010 complements two previously issued ESDU documents: "Symmetric steady manoeuvre loads on rigid aircraft of classical configuration at subsonic speeds", ESDU 94009, and "Shear force, bending moment and torque of rigid aircraft in symmetric steady manoeuvring flight", ESDU 94045.Indexed under:
- Aerodynamic Loading
- Ailerons
- Approach
- Asymmetric Flight
- Bending Moment
- Equations of Motion
- Fins
- Inoperative Engine
- Rudder
- Sideslipping Flight
- Tails
- Torque
- Wings
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