The problems you will solve are similar to those at the end of Chapter 5; however, the values will be changed (see below) to keep the problems unique. You can practice with the questions in the book; answer keys are located after the final chapter to check your work. Solve these problems: 1. A 10xxx-lb aircraft has an (L/D)MAX value of 9.8; find its minimum drag. For aircraft weight, enter the first three numbers of your phone number after "10" (For example, if your phone number starts with 412, enter aircraft weight as 10,412 lb). To find minimum drag, use equation 5.12 from the textbook, also provided here: W 1065.5 Dmin = (+) max 2. If the aircraft in Problem 11 has a wing area S=2xx ft and the value of C =0.5 at L/DMAX, find the sea level airspeed where DMIN occurs. For wing area, enter your age after "2" (for example, if you are 30, then you would enter S=230 ft). Note: To solve for V1, reference Table 2.1 Standard atmosphere table and Equation 4.4 (Velocity equation derived from the Lift equation). 3. For the aircraft in Problem 11, find D; and Dp at (L/D)MAX- 4. For the aircraft in Problem 11, complete the following table and plot Di, Dp, and Dt in Excel. V 125 150 172 200 300 400 (V2 V) Dp=Dmin (V2V) (V V) |Di = Dmin (ViV) DT = Dp + Di