In: Physics
Givens (Questions 1
V (KTAS) |
q (psf) |
CL |
CD |
CL / CD |
DP (lb) |
DI (lb) |
DT (lb) |
VS 150.64 |
76.92 |
1,3 |
0,09 |
14,44 |
153,84 |
538,44 |
692,28 |
160 |
86,96 |
1,15 |
75*10^-3 |
15,33 |
173,92 |
478,28 |
652,2 |
180 |
109,89 |
0,91 |
42*10^-3 |
21,67 |
219,78 |
241,76 |
461,54 |
200 |
135,14 |
0,74 |
42*10^-3 |
17,62 |
270,28 |
297,31 |
567,59 |
205 |
142,85 |
0,7 |
40*10^-3 |
17,5 |
285,7 |
285,7 |
571,4 |
210 |
149,25 |
0,67 |
39*10^-3 |
17,18 |
298,5 |
283,57 |
582,07 |
220 |
163,93 |
0,61 |
35*10^-3 |
17,43 |
327,86 |
245,89 |
573,75 |
240 |
196,08 |
0,51 |
31*10^-3 |
16,45 |
392,16 |
215,69 |
607,85 |
260 |
227,27 |
0,44 |
28*10^-3 |
15,71 |
454,54 |
181,82 |
636,36 |
280 |
263,15 |
0,38 |
26*10^-3 |
14,61 |
526,3 |
157,89 |
684,19 |
300 |
303,03 |
0,33 |
24,5*10^-3 |
13,47 |
606,06 |
136,36 |
742,42 |
Equations for Table:
q =
CL =
CD = CDP + [1/ (e AR)] CL2
Dp = CDp q S
Di = Dt - Dp = CDi q S = [1/ (e AR)] CL2 q S
Dt = Di + Dp = CD q S
1. Determine VSTALL (Stall speed in KTAS)
Vstall = 150,64 KTAS
2. Determine DMIN (Minimum drag in pounds)
Dmin = 461,54 lb
3. Determine VDMIN (Minimum drag speed in KTAS)
Vdmin = 180 KTAS
4. Determine the parasitic drag at DMIN (pounds)
DP min =219.78 lb
5. Determine the induced drag at DMIN (pounds)
Dimin = 241.76 lb
6. Find Glide Ratio at VDMIN
Glide Ratio = Cl/Cd = 21.67