Question

The curly bracket in the accelerating force represents the net propulsive thrust- weight ratio.

(a) True

(b) False

I have been asked this question by my college director while I was bunking the class.

My query is from Estimation of Take-off Distances in division Take-off and Landing Performance of Aircraft Performance

Answer 1

Right answer is (a) True

Explanation: The formula for accelerating force is given by: \(\frac{F}{W}=\Big\{\frac{F_N}{W}-\mu_R-sin\gamma_R\Big\}-\frac{L}{W}\Big(\frac{C_D}{C_L}-\mu_R\Big)\) where F is force, W is weight, μR is runway coefficient of the rolling friction, γR is runway slope, L is lift, CD and CL are the coefficients of drag and lift. The curly bracket in the accelerating force represents the net propulsive thrust- weight ratio.