Jawaharlal Nehru Technological University Hyderabad
Jawaharlal Nehru Technological University Hyderabad B.Tech II FLIGHT MECHANICS-I Previous Question Paper (May - 2019 - R15)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question in Part B carries 10 marks.
Part A
Define off-standard atmosphere.
Answer
An off-standard atmosphere refers to any atmospheric condition where the temperature, pressure, or density deviates from the values defined by the International Standard Atmosphere (ISA) model at a given altitude.
Write the expressions for lift, drag and side force.
Answer
The aerodynamic forces are defined as:
Where ρ is air density, V is velocity, S is wing area, and CL, CD, CY are the lift, drag, and side force coefficients respectively.
What is the effect of weight on cruise performance?
Answer
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Give the expressions for endurance of a jet engine and propeller engine.
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What is instantaneous turn?
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What is the effect of wind on climb performance?
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What is tankering?
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Explain about fuel planning.
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What is the use of aircraft datum performance (WAT) chart?
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Draw the payload-range diagram.
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Part B
What is total airplane drag? How do you estimate it? What are the ways to reduce drag?
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Explain the role and design mission of an aircraft.
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Write a short note on air data computers.
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Derive an expression for range of a propeller engine.
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Explain about the cruise performance with mixed power plants.
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Derive the equations of motion of aircraft of an accelerated flight.
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Obtain the relation for the Time to turn through a given angle for a level turning flight.
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Explain about the various phases involved in Flight planning.
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Write the procedure for the estimation of take-off distances.
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Brief about the parametric performance data analysis.
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Write the procedure for operational analysis.
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