The boeing 707 jet airliner is shown in the figure given below. Its aspect ration is 7.1. Consider the 707 crusing at 593 mph at an altitude of 30000 ft, with a weight of 336000 lb. This airplane has a swpet wing with a sweep angle of 35 degrees and a planform area of 3010 ft^2. Calculate the induced drag coefficient at these conditions, and compare your results with an estimated zero-lift drag coefficient for the707 of 0.0151. How does the ratio of induced to zero-lift drag for the 707 compare with the same ratio for the DC-3 of 0.35?
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