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As a designer let’s consider that we want to build an aircraft weighing 28000 units at take-off. How many engine will require if our thrust loading T.L. is 0.71 and thrust per engine is 10000 unit?

As a designer let’s consider that we want to build an aircraft weighing 28000 units at take-off. How many engine will require if our thrust loading T.L. is 0.71 and thrust per engine is 10000 unit? Correct Answer 2

Given, thrust per engine T = 10000 unit and thrust loading T.L. = 0.71 Now, take-off gross weight is 28000 units. Now, number engines required is given by, N = W*T.L. / T = 28000*0.71/10000 = 1.98. We cannot use 1.98 engines so we will take the nearest integer. Hence, the answer will be 2.

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