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A designer is designing an aircraft which has climb gradient of 1.5 and has drag of 20N. If it weighs 220kg then, determine thrust to weight ratio?(a) 0.097(b) 0.87(c) 20(d) 220The question was asked in an online quiz.My doubt stems from Selection of Thrust-Weight and Wing Loading topic in chapter Thrust-Weight Ratio and Wing Loading of Aircraft Design

Answer»

Right CHOICE is (a) 0.097

The explanation: Given, climb GRADIENT G = 1.5, DRAG D = 20N, Weight W=220kg.

Now thrust to weight ratio in terms of G is given by,

T/W = (G+D)/W = (1.5+20)/220 = 0.097.



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