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