The Douglas DC-3 (Fig. 6.80) has a maximum velocity of 229 mph at an altitude of 7500 ft. Each of its two engines provides a maximum of 1200 hp. Its weight is 25,000 lb. aspect ratio is 9.14, and wing area is 987 ft2. Assume that the propeller efficiency is 0.8, and the Oswald efficiency factor is 0.7. Calculate the zero-lift drag coefficient for the DC-3.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.