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Givens (Questions 1

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Physics

Givens (Questions 1

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3.9 Ratings (643 Votes)

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
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