Q1/ Choose the correct answer:1- When all forces (lift, weight, drag, thrust) and moments about the c.g cancel out, this case called:stabilityequilibriumcontrolneutrally2- The longitudinal distance from aerodynamic center of tail to the center of gravity of aircraft:XcgXacZcg3- The condition for an aircraft to be laterally stable is that:dC₁<0<0dødCn > 0dß4- An equivalent condition for longitudinal static stability in aircraft is that:CM = 0dcndyәсмдаOCL5- The motion of the aircraft around its lateral axis is called:асм <0da<0ac>0yawdcndß<0pitchroll

There are five questions in which we have to give the correct option.

Q1/ Choose the correct answer: 1- When all forces (lift, weight, drag, thrust) and moments about the c.g cancel out, this case called: stability equilibrium control neutrally 2- The longitudinal distance from aerodynamic center of tail to the center of gravity of aircraft: Xcg Xac It Zcg 3- The condition for an aircraft to be laterally stable is that: dCn <0 >0 dCi 20 do dCn dy dß 4- An equivalent condition for longitudinal static stability in aircraft is that: CM = 0 Әсм да OCL 5- The motion of the aircraft around its lateral axis is called: асм <0 θα <0 ac >0 yaw dcn dß <0 pitch roll

Q1/ Choose the correct answer: 1- When all forces (lift, weight, drag, thrust) and moments about the c.g cancel out, this case called: stability equilibrium control neutrally 2- The longitudinal distance from aerodynamic center of tail to the center of gravity of aircraft: Xcg Xac It Zcg 3- The condition for an aircraft to be laterally stable is that: dCn <0 >0 dCi 20 do dCn dy dß 4- An equivalent condition for longitudinal static stability in aircraft is that: CM = 0 Әсм да OCL 5- The motion of the aircraft around its lateral axis is called: асм <0 θα <0 ac >0 yaw dcn dß <0 pitch roll

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.12P: A differential equation encountered in the vibration of beams is d4ydx4=2D where x = distance...

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