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1 POLITECNICO DI MILANO FLIGHT DYNAMICS Prof. Marco Lovera Academic Year 2018/19 13 June 2019 SURNAME AND NAME ................................................. ............................................................... PERSON CODE ..................................... ............................................... SIGNATURE ....................................... ................................................. • Please write only in the assigned spaces and return this booklet without additional pages. • This is a closed books exam. • Clarity and completeness of responses are a prerequisite for a positive result of the exam. 2 1. Define the direction cosine matrix for rigid body attitude. 2. Describe the axis/angle parameterisation for rigid body attitude and its relation to the quaternion one. 3 3. Define body axes, stability axes and wind axes. 4. Longitudinal dynamics: define the state variables a nd the control variables for the longitudinal model. 4 5. Define the most significant aerodynamic derivative for longitudinal dynamics. 6. With reference to the linearized longitudinal dynamics, describe the corresponding modes, in terms of eigenvalue location in the complex plane. 5 7. Write the short period approximation for longitudinal dynamics. 8. Describe the turn coordination constraint between roll angle and yaw rate.