Which of the following is the correct climb gradient equation?(a) τ-\(\frac{1}{2}\)[u^2+u^-2]=Emaxsinγ2(b) τ+\(\frac{1}{2}\)[u^2+u^-2]=Emaxsinγ2(c) τ+\(\frac{1}{2}\)[u^2+u^-2]=Emax(d) τ-\(\frac{1}{2}\)[u^2+u^-2]=EmaxI got this question in a national level competition.This intriguing question originated from Climb and Descent Performance with Thrust-Producing Engines topic in section Climb and Descent Performance of Aircraft Performance

Which of the following is the correct climb gradient equation?(a) τ-\

1.	Which of the following is the correct climb gradient equation?(a) τ-\(\frac{1}{2}\)[u^2+u^-2]=Emaxsinγ2(b) τ+\(\frac{1}{2}\)[u^2+u^-2]=Emaxsinγ2(c) τ+\(\frac{1}{2}\)[u^2+u^-2]=Emax(d) τ-\(\frac{1}{2}\)[u^2+u^-2]=EmaxI got this question in a national level competition.This intriguing question originated from Climb and Descent Performance with Thrust-Producing Engines topic in section Climb and Descent Performance of Aircraft Performance
Answer» The CORRECT choice is (a) τ-\(\frac{1}{2}\)[u^2+u^-2]=Emaxsinγ2 The explanation is: The correct climb gradient equation is GIVEN by the equation τ-\(\frac{1}{2}\)[u^2+u^-2]=Emaxsinγ2 where τ is dimensionless thrust, u is airspeed, Emax is ENDURANCE and γ is the angle at which the force is acting on the aircraft.

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