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ATPL - POF – Formulas Questions with Complete Correct Answers | Grade A+

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What is the formula of Lift? Ans: L=Cl*1/2Rho*V^2*S Cl: Coefficient of Lift - Rho : Density - V: Velocity - S: Surface area of the wing What is the formula of Drag? Ans: D=Cd*1/2Rho*V^2*S Cd: Coefficient of Drag - Rho : Density - V: Velocity - S: Surface area of the wing What is the formula to find the CDI (coefficient of induced drag)? Ans: CDI=Cl^2/Aspect ratio What is the formula of the load factor in a turn? Ans: LF=1/Cos Gamma (gamma is the angle of bank) What is the formula to find the radius of a turn? Ans: Radius=V^2/g*tan gamma (g= gravity 9.81 and gamma is the angle of bank TAS must be in M/S) Wht is the forrmula to find the rate of turn? Ans: Rate of turn = TAS / Radius Pay attention to the units, TAS in Meters/second and radius in meters. What is the formula to find the angle of the oblique wave with the wing chord? Ans: Sin Mu=1/Mach number What is the formula to find the Mach number? Ans: Mach number = TAS/LSS what is the formula to find the Local speed of sound? Ans: LSS=38.94*sqr(OAT in K° What is the formula to find the wingloading? Ans: Wing loading in N/M^2= All up weight/Wing area What is the formula to find the new Vs Ans: New Vs=Old Vs * sqr(New weight/old weight


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