propeler calculations en v-97

7/26/2019 Propeler Calculations en v-97

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PROPELLER CALCULATION FROM MODELIST KONSTRUKTOR 11/98 By B. Ca

Y. R. Gilfanov

1.Thrust desired: N = 22 hp F desired 100

Result D = 2.21 ? n = 1193

2.Initial calculation data Engine N = 22 hp at 2860

Proppeler span D = 1.30 ? number of blade 2

Result: F = 70.1 kg n = 2895

W??? = 197 ?/s Reduc ratio= 1.0

3.Desired cruising speed: V = 40 km/hr = 11.1

(for airplanes - takeoff speed) 899.2

REFINE YOUR INPUTS SUITABL

b'= 0.2132

4.Desired propeler width(from 0,08 to 0,12 D) B = 0.12 SUITABLE B/D = 0.09

0.00

= +

b(R) = 57,3*arctg(0,01*V/n*R)

Efficient blade area is taken fom mid to the end

i.e. given the traction is effected only in this section

for

templat

cutting

Base forumla:F = a*((N*D)2)1/3; n = b*((N/D5)1/3, where a = 7,5; b = 1,6

=

5.Angle of attack formula: (R) = 57,3*(3,3*10-4*/(n2*R2+ 10-4*V

on this particular area the angle must be => 18 degrees ( RAF-6 airfoil angle of attack limit)


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R,?? H step, ?? R,?? = + W 100 492 100 100.0 21.0 38.1 30 38.1

130 576 130 109.4 16.4 35.2 39 35.2

195 731 195 50.3 11.1 30.8 59 30.8

260 815 260 28.3 8.4 26.5 79 26.5

325 832 325 17.9 6.7 22.2 99 22.2

390 787 390 12.2 5.6 17.8 118 17.8

455 687 455 8.7 4.8 13.5 138 13.5

488 648 488 7.5 4.5 12.0 148 12.0

520 614 520 6.4 4.2 10.7 158 10.7585 557 585 4.9 3.8 8.6 177 8.6

650 511 650 3.8 3.4 7.1 197 7.1

Pattern

rotation 0

22

For the the variable pitch propeller, this unit allows you to check how

affects the angle of the blade on the permutation step propeller and the airscrew"

setting angle y new Lift coef

0 step

= + = + R, ?? H', ?? H' - H %38.1 38.1 0.78281 100 492 0 0.0 1.513

35.2 35.2 0.70457 130 576 0 0.0 1.652

30.8 30.8 0.59701 195 731 0 0.0 1.73526.5 26.5 0.49875 260 815 0 0.0 1.601

22.2 22.2 0.40764 325 832 0 0.0 1.378

17.8 17.8 0.32099 390 787 0 0.0 1.104

13.5 13.5 0.24041 455 687 0 0.0 0.813

12.0 12.0 0.21168 487.5 648 0 0.0 0.708

10.7 10.7 0.18805 520 614 0 0.0 0.623

8.6 8.6 0.15165 585 557 0 0.0 0.492

7.1 7.1 0.12512 650 511 0 0.0 0.398

average 663 0 0.0

, degree , degree

TAN( + ?) Cy


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gans

kg INPUTS

RESULTS

RPM

RPM

pcs.

RPM

?/?

Specific thrust 0.6

0.9

0.8

Additional

Airscrew Witdh Profile Airfoil Relative Radius coef.

speed in terms of width Thickness Thickness 1.1

conditional

- 0,018)


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v, km/h Bl b' B C1 % R C

85 85.04 0.78743 0.78743 0.90000 108.0 29.16 27.00 100 32.1 0.61

100 90.25 0.81747 0.81747 0.92000 110.4 26.50 24.00 130 29.1 0.57

127 96.85 0.85862 0.85862 0.94000 112.8 24.36 22.00 195 26.8 0.51

142 103.09 0.89487 0.89487 0.96000 115.2 22.22 20.00 260 24.4 0.44

145 110.01 0.92602 0.92602 0.99000 118.8 20.09 18.00 325 22.1 0.37

137 115.40 0.95215 0.95215 1.01000 121.2 17.95 16.00 390 19.7 0.30

119 117.26 0.97230 0.97230 1.00500 120.6 15.82 14.00 455 17.4 0.23

113 117.40 0.97832 0.97832 1.00000 120.0 14.75 13.00 488 16.2 0.20

107 117.34 0.98277 0.98277 0.99500 119.4 13.68 12.00 520 15.0 0.1897 117.46 0.98870 0.98870 0.99000 118.8 11.54 10.00 585 12.7 0.14

89 116.69 0.99226 0.99226 0.98000 117.6 9.41 8.00 650 10.3 0.12

- convenient for the manufacture

blade model

(turn patterns to reduce the size of the workpiece)

(try to install about 25 degrees and see the result)

.

rn rxb

not 3.9 2.9

working 3.5 2.6

blade 3.2 2.4areas 2.9 2.2

2.7 2.0

2.4 1.8

working 2.1 1.6

blade 1.9 1.5

areas 1.8 1.4

1.5 1.1

1.2 0.9

COS() COS( ) SIN()


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? ??????

???

?????

#VALUE!

71.13

135.11

126.40

117.79

108.62

97.20

43.79

40.46

71.49

58.93

870.92 ??3 on a blade

2.35 kg from Al

0.96 kg fom Composites0.52 kg pine made

Building blocks !!!


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hc

66.6 42.52 100.00 42.36 -42.52 -43.70

63.6 45.12 130.00 45.36 -45.12 -45.83

57.8 48.43 195.00 48.78 -48.43 -48.93

51.4 51.54 260.00 51.84 -51.54 -52.02

44.8 55.01 325.00 53.68 -55.01 -56.92

37 57.70 390.00 54.94 -57.70 -60.88

28.2 58.63 455.00 54.80 -58.63 -62.74

24.9 58.67 520.00 54.19 -58.67 -63.35

22.1 58.73 585.00 53.81 -58.73 -63.7817.8 58.35 650.00 53.15 -58.35 -63.63

14.6

Block building profiles (please


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Radius

RAF-6Chord angle

actual

27.60 % %B 108.0 32.1 6.6

0.0

0 10 0.0 3.2

4.00 2.00 6.00 2.5 41 2.7 8.8

10.50 5.20 15.70 5 59 5.4 12.714.40 6.80 21.20 10 79 10.8 17.2

16.90 7.50 24.40 20 95 21.6 21.1

19.50 8.10 27.60 30 100 32.4 22.7

19.30 8.00 27.30 40 99 43.2 22.5

17.90 7.60 25.50 50 95 54.0 21.4

16.00 6.80 22.80 60 87 64.8 19.6

12.90 5.20 18.10 70 74 75.6 16.9

9.80 3.50 13.30 80 56 86.4 13.2

6.00 2.00 8.00 90 35 97.2 8.4

2.70 1.00 3.70 100 7 108.0 1.6

100 0 108.0 0.0

100 108.0 -0.6

90 97.2 -2.8

80 86.4 -4.7

70 75.6 -6.8

60 64.8 -8.350 54.0 -9.1

40 43.2 -9.3

30 32.4 -9.4

20 21.6 -9.4

10 10.8 -8.1

5 5.4 -6.3

2.5 2.7 -4.4

0 0.0 -1.1


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Radius

RAF-6Chord angle

actual

24.90 % %B 110.4 29.1 8.2

0.0

0 10 0.0 2.9

4.00 1.33 5.33 2.5 41 2.8 8.9

10.50 3.47 13.97 5 59 5.5 12.9

14.40 4.53 18.93 10 79 11.0 17.5

16.90 5.00 21.90 20 95 22.1 21.319.50 5.40 24.90 30 100 33.1 22.8

19.30 5.33 24.63 40 99 44.2 22.6

17.90 5.07 22.97 50 95 55.2 21.5

16.00 4.53 20.53 60 87 66.2 19.7

12.90 3.47 16.37 70 74 77.3 17.0

9.80 2.33 12.13 80 56 88.3 13.2

6.00 1.33 7.33 90 35 99.4 8.3

2.70 0.67 3.37 100 7 110.4 1.6

100 0 110.4 0.0

100 110.4 -0.4

90 99.4 -1.9

80 88.3 -3.1

70 77.3 -4.6

60 66.2 -5.6

50 55.2 -6.140 44.2 -6.2

30 33.1 -6.3

20 22.1 -6.3

10 11.0 -5.5

5 5.5 -4.3

2.5 2.8 -3.0

0 0.0 -1.0


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Radius

RAF-6 Chord angle

actual

22.20 % %B 113 26.8 10.1

0.0

0 10 0.0 2.7

4.00 0.67 4.67 2.5 41 2.8 9.4

10.50 1.73 12.23 5 59 5.6 13.614.40 2.27 16.67 10 79 11.3 18.3

16.90 2.50 19.40 20 95 22.6 22.2

19.50 2.70 22.20 30 100 33.8 23.5

19.30 2.67 21.97 40 99 45.1 23.3

17.90 2.53 20.43 50 95 56.4 22.3

16.00 2.27 18.27 60 87 67.7 20.4

12.90 1.73 14.63 70 74 79.0 17.5

9.80 1.17 10.97 80 56 90.2 13.4

6.00 0.67 6.67 90 35 101.5 8.4

2.70 0.33 3.03 100 7 112.8 1.7

100 0 112.8 0.0

100 112.8 -0.2

90 101.5 -0.9

80 90.2 -1.6

70 79.0 -2.3

60 67.7 -2.950 56.4 -3.2

40 45.1 -3.2

30 33.8 -3.3

20 22.6 -3.3

10 11.3 -2.9

5 5.6 -2.2

2.5 2.8 -1.6

0 0.0 -0.9


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Radius

RAF-6 Chord angle actual

% %B 115 24.4

0

0 10 0 2.44

2.5 41 2.88 10.004

5 59 5.76 14.396

10 79 11.52 19.276

20 95 23.04 23.18

30 100 34.56 24.4

40 99 46.08 24.156

50 95 57.6 23.18

60 87 69.12 21.228

70 74 80.64 18.056

80 56 92.16 13.664

90 35 103.68 8.54

100 7 115.2 1.708100 115.2 0

Radius

RAF-6 Chord angle

actual

% %B 119 22.1

0

0 10 0 2.21


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2.5 41 2.97 9.061

5 59 5.94 13.039

10 79 11.88 17.459

20 95 23.76 20.995

30 100 35.64 22.1

40 99 47.52 21.879

50 95 59.4 20.995

60 87 71.28 19.227

70 74 83.16 16.354

80 56 95.04 12.37690 35 106.92 7.735

100 7 118.8 1.547

100 118.8 0

Radius

RAF-6 Chord angle

actual

% %B 121 19.7

0

0 10 0 1.97

2.5 41 3.03 8.077

5 59 6.06 11.623

10 79 12.12 15.56320 95 24.24 18.715

30 100 36.36 19.7

40 99 48.48 19.503

50 95 60.6 18.715

60 87 72.72 17.139

70 74 84.84 14.578

80 56 96.96 11.032

90 35 109.08 6.895

100 7 121.2 1.379

100 121.2 0


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Radius

RAF-6 Chord angle

actual

% %B 121 17.4

0

0 10 0 1.74

2.5 41 3.015 7.134

5 59 6.03 10.26610 79 12.06 13.746

20 95 24.12 16.53

30 100 36.18 17.4

40 99 48.24 17.226

50 95 60.3 16.53

60 87 72.36 15.138

70 74 84.42 12.876

80 56 96.48 9.744

90 35 108.54 6.09

100 7 120.6 1.218

100 120.6 0

Radius

RAF-6 Chord angle actual

% %B 119 15

0

0 10 0 1.5

2.5 41 2.985 6.15

5 59 5.97 8.85

10 79 11.94 11.85

20 95 23.88 14.25

30 100 35.82 15

40 99 47.76 14.85

50 95 59.7 14.25


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60 87 71.64 13.05

70 74 83.58 11.1

80 56 95.52 8.4

90 35 107.46 5.25

100 7 119.4 1.05

100 119.4 0

Radius

RAF-6 Chord angle

actual

% %B 119 12.7

0

0 10 0 1.27

2.5 41 2.97 5.207

5 59 5.94 7.493

10 79 11.88 10.033

20 95 23.76 12.065

30 100 35.64 12.7

40 99 47.52 12.573

50 95 59.4 12.065

60 87 71.28 11.049

70 74 83.16 9.39880 56 95.04 7.112

90 35 106.92 4.445

100 7 118.8 0.889

100 118.8 0

Radius

RAF-6 Chord angle

actual


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% %B 118 10.3

0

0 10 0 1.03

2.5 41 2.94 4.223

5 59 5.88 6.077

10 79 11.76 8.137

20 95 23.52 9.785

30 100 35.28 10.3

40 99 47.04 10.197

50 95 58.8 9.78560 87 70.56 8.961

70 74 82.32 7.622

80 56 94.08 5.768

90 35 105.84 3.605

100 7 117.6 0.721

100 117.6 0


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10 15.00 10

Block building profiles (please do not touch)

100 42.36 100

130 45.36 130

195 48.78 195

260 51.84 260

325 53.68 325

390 54.94 390


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455 54.80 455

520 54.19 520

585 53.81 585

650 53.15 650

650 -63.63 650

585 -63.78 585

520 -63.35 520

455 -62.74 455

390 -60.88 390

325 -56.92 325260 -52.02 260

195 -48.93 195

130 -45.83 130

100 -43.70 100

100 -15.00 100

10 -15.00 10

10 15.00 10

touch)


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COS 0.78743

SIN 0.62

Yc Xc Yn Xn

-48.60 -6.63 -42.36 24.74

-48.60 -3.42 -40.38 27.26

-45.90 2.14 -34.82 29.98

-43.20 6.04 -30.30 31.38-37.80 10.60 -23.23 31.64

-27.00 14.49 -12.33 28.05

-16.20 16.05 -2.86 22.62

-5.40 15.84 5.51 15.80

5.40 14.78 13.36 8.31

16.20 12.97 20.75 0.23

27.00 10.30 27.61 -8.53

37.80 6.62 33.84 -18.09

48.60 1.80 39.38 -28.54

59.40 -4.99 43.70 -40.54

59.40 -6.63 42.69 -41.83

59.40 -7.24 42.31 -42.31

48.60 -9.44 32.45 -37.39

37.80 -11.36 22.76 -32.25

27.00 -13.45 12.97 -27.24

16.20 -14.96 3.54 -21.765.40 -15.72 -5.44 -15.71

-5.40 -15.94 -14.08 -9.22

-16.20 -16.05 -22.65 -2.65

-27.00 -16.00 -31.12 4.04

-37.80 -14.76 -38.87 11.68

-43.20 -12.90 -41.97 16.47

-45.90 -11.02 -42.93 19.62

-48.60 -7.70 -43.01 23.89

-42.36 24.74


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COS 0.81747

SIN 0.58

Yc Xc Yn Xn

-49.68 -8.24 -45.36 21.88

-49.68 -5.33 -43.68 24.26

-46.92 0.71 -37.95 27.60

-44.16 4.67 -33.41 29.25

-38.64 9.25 -26.26 29.81

-27.60 13.09 -15.02 26.60-16.56 14.55 -5.16 21.43

-5.52 14.33 3.74 14.90

5.52 13.31 12.18 7.70

16.56 11.49 20.15 -0.15

27.60 8.73 27.59 -8.76

38.64 4.92 34.42 -18.23

49.68 0.09 40.67 -28.54

60.72 -6.61 45.83 -40.37

60.72 -8.24 44.89 -41.71

60.72 -8.64 44.66 -42.04

49.68 -10.09 34.80 -36.86

38.64 -11.37 25.04 -31.55

27.60 -12.80 15.19 -26.36

16.56 -13.83 5.57 -20.84

5.52 -14.34 -3.75 -14.90-5.52 -14.48 -12.85 -8.65

-16.56 -14.55 -21.92 -2.36

-27.60 -14.55 -30.94 4.00

-38.64 -13.74 -39.50 11.02

-44.16 -12.50 -43.30 15.22

-46.92 -11.22 -44.82 17.85

-49.68 -9.21 -45.92 21.09

-45.36 21.88


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COS 0.85862

SIN 0.5126

Yc Xc Yn Xn

-50.76 -10.14 -48.78 17.31

-50.76 -7.46 -47.41 19.61

-47.94 -0.72 -41.53 23.95

-45.12 3.43 -36.98 26.07-39.48 8.15 -29.72 27.24

-28.20 12.04 -18.04 24.79

-16.92 13.40 -7.66 20.18

-5.64 13.17 1.91 14.20

5.64 12.16 11.08 7.55

16.92 10.28 19.80 0.16

28.20 7.34 27.98 -8.15

39.48 3.27 35.58 -17.43

50.76 -1.70 42.71 -27.48

62.04 -8.47 48.93 -39.08

62.04 -10.14 48.07 -40.51

62.04 -10.35 47.97 -40.69

50.76 -11.08 37.90 -35.53

39.48 -11.74 27.88 -30.32

28.20 -12.49 17.81 -25.18

16.92 -13.03 7.85 -19.865.64 -13.30 -1.97 -14.31

-5.64 -13.36 -11.69 -8.58

-16.92 -13.40 -21.40 -2.83

-28.20 -13.42 -31.09 2.93

-39.48 -13.02 -40.57 9.06

-45.12 -12.38 -45.09 12.50

-47.94 -11.71 -47.17 14.52

-50.76 -11.03 -49.24 16.55

-48.78 17.31


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COS 0.89487SIN 0.4463

Yc Xc Yn Xn

-51.84 -12.2 -51.84 12.22

-51.84 -9.76 -50.75 14.40

-48.96 -2.196 -44.79 19.89

-46.08 2.196 -40.26 22.53

-40.32 7.076 -32.92 24.33

-28.8 10.98 -20.87 22.68

-17.28 12.2 -10.02 18.63

-5.76 11.956 0.18 13.27

5.76 10.98 10.06 7.25

17.28 9.028 19.49 0.37

28.8 5.856 28.39 -7.61

40.32 1.464 36.73 -16.69

51.84 -3.66 44.76 -26.41

63.36 -10.492 52.02 -37.6763.36 -12.2 51.25 -39.20

-51.84 -12.2 -51.84 12.22

COS 0.92602

SIN 0.3775

Yc Xc Yn Xn

-53.46 -11.05 -53.68 9.95

-53.46 -8.84 -52.84 11.99


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-50.49 -1.989 -47.51 17.22

-47.52 1.989 -43.25 19.78

-41.58 6.409 -36.08 21.63

-29.7 9.945 -23.75 20.42

-17.82 11.05 -12.33 16.96

-5.94 10.829 -1.41 12.27

5.94 9.945 9.25 6.97

17.82 8.177 19.59 0.85

29.7 5.304 29.50 -6.30

41.58 1.326 39.00 -14.4753.46 -3.315 48.25 -23.25

65.34 -9.503 56.92 -33.46

65.34 -11.05 56.33 -34.90

-53.46 -11.05 -53.68 9.95

COS 0.95215

SIN 0.3056

Yc Xc Yn Xn

-54.54 -9.85 -54.94 7.29

-54.54 -7.88 -54.34 9.17

-51.51 -1.773 -49.59 14.05

-48.48 1.773 -45.62 16.51

-42.42 5.713 -38.64 18.40-30.3 8.865 -26.14 17.70

-18.18 9.85 -14.30 14.94

-6.06 9.653 -2.82 11.04

6.06 8.865 8.48 6.59

18.18 7.289 19.54 1.38

30.3 4.728 30.30 -4.76

42.42 1.182 40.75 -11.84

54.54 -2.955 51.03 -19.48

66.66 -8.471 60.88 -28.44

66.66 -9.85 60.46 -29.75

-54.54 -9.85 -54.94 7.29


38/55

COS 0.97230

SIN 0.2338

Yc Xc Yn Xn

-54.27 -8.7 -54.80 4.23

-54.27 -6.96 -54.39 5.92

-51.255 -1.566 -50.20 10.46

-48.24 1.566 -46.54 12.80-42.21 5.046 -39.86 14.77

-30.15 7.83 -27.48 14.66

-18.09 8.7 -15.56 12.69

-6.03 8.526 -3.87 9.70

6.03 7.83 7.69 6.20

18.09 6.438 19.09 2.03

30.15 4.176 30.29 -2.99

42.21 1.044 41.28 -8.85

54.27 -2.61 52.16 -15.22

66.33 -7.482 62.74 -22.78

66.33 -8.7 62.46 -23.96

-54.27 -8.7 -54.80 4.23

COS 0.98277SIN 0.1848

Yc Xc Yn Xn

-53.73 -7.5 -54.19 2.56

-53.73 -6 -53.91 4.03

-50.745 -1.35 -50.12 8.05

-47.76 1.35 -46.69 10.15

-41.79 4.35 -40.27 12.00

-29.85 6.75 -28.09 12.15

-17.91 7.5 -16.22 10.68

-5.97 7.35 -4.51 8.33

5.97 6.75 7.11 5.53


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17.91 5.55 18.63 2.14

29.85 3.6 30.00 -1.98

41.79 0.9 41.24 -6.84

53.73 -2.25 52.39 -12.14

65.67 -6.45 63.35 -18.48

65.67 -7.5 63.15 -19.51

-53.73 -7.5 -54.19 2.56

COS 0.98870

SIN 0.1499

Yc Xc Yn Xn

-53.46 -6.35 -53.81 1.74

-53.46 -5.08 -53.62 2.99

-50.49 -1.143 -50.09 6.44

-47.52 1.143 -46.81 8.26

-41.58 3.683 -40.56 9.88

-29.7 5.715 -28.51 10.10

-17.82 6.35 -16.67 8.95

-5.94 6.223 -4.94 7.04

5.94 5.715 6.73 4.76

17.82 4.699 18.32 1.97

29.7 3.048 29.82 -1.4441.58 0.762 41.22 -5.48

53.46 -1.905 52.57 -9.90

65.34 -5.461 63.78 -15.20

65.34 -6.35 63.65 -16.08

-53.46 -6.35 -53.81 1.74

COS 0.99226

SIN 0.1241


40/55

Yc Xc Yn Xn

-52.92 -5.15 -53.15 1.46

-52.92 -4.12 -53.02 2.48

-49.98 -0.927 -49.71 5.29

-47.04 0.927 -46.56 6.76

-41.16 2.987 -40.47 8.07

-29.4 4.635 -28.60 8.25

-17.64 5.15 -16.86 7.30

-5.88 5.047 -5.21 5.74

5.88 4.635 6.41 3.8717.64 3.811 17.98 1.59

29.4 2.472 29.48 -1.20

41.16 0.618 40.92 -4.50

52.92 -1.545 52.32 -8.10

64.68 -4.429 63.63 -12.42

64.68 -5.15 63.54 -13.14

-52.92 -5.15 -53.15 1.46


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-110.00-100.00

-90.00-80.00

-70.00-60.00

-50.00-40.00

-30.00-20.00

-10.000.00

10.0020.00

30.0040.00

50.0060.00

70.0080.00

90.00100.00

110.00120.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=100

RAF-6M


42/55

-110.00-100.00

-90.00-80.00

-70.00-60.00

-50.00-40.00

-30.00-20.00

-10.000.00

10.0020.00

30.0040.00

50.0060.00

70.0080.00

90.00100.00

110.00120.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=0.2

RAF-6M


43/55

-90.00

-80.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

11

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=0.3RAF-6m


44/55

-90.00

-80.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.0

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=0.4

RAF-6


45/55

-90.00

-80.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=0.5


46/55

-90.00

-80.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=0.6


47/55

-90.00

-80.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=0.7


48/55

-90.00 -80.00 -70.00 -60.00 -50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 10

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=0.8


49/55

-90.00

-80.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=0.9


50/55

-90.00-80.00

-70.00-60.00

-50.00-40.00

-30.00-20.00

-10.000.00

10.0020.00

30.0040.00

50.0060.00

70.0080.00

90.00100.00

110.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

R=1.0


51/55

70.00 140.00 210.00 280.00 350.00 420.00 490.00 560.00 630.00 700.00

-90.00

-80.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

-43

.7

-45

.8

-48

.9

-52

.0

-56

.9

-60

.9

-62

.7

-63

.3

-63

.8

-63

.6

42.4 4

5.4 4

8.8 5

1.8

53.7

54.9

54.8

54.2

53.8

53.1


52/55

70 140 210 280 350 420 490 560 630 700

0.0

10.0

20.0

30.0

40.0

50.0

32.129.1

26.824.4

22.119.7

17.4 16.2 15.012.7

10.3

Changing the thickness alng the !a"i#s

Ra"i#s$ %%

&!'ile

(hickness$

%%


53/55

70 140 210 280 350 420 490 560 630 700

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

38.1

35.2

30.8

26.5

22.2

17.8

13.512.0

10.7

8.67.1

21.0

16.4

11.1

8.46.7

5.64.8 4.5 4.2 3.8 3.4

17.9

12.2

8.77.5

6.44.9

3.8

Angle )s Ra"i#s

Ra"i#s$ %%

Ang

le$

"eg.


54/55

Pitch changin along the radius

(twist) 0 deg.

0 100 200 300 400 500

0

100

200

300

400

500

600

700

800

900

Ra"i#s R$ %%

*te+'

latsi"e

'the,

la"e$


55/55

00 700

Estimate

twist

propeler calculations en v-97

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