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Rocket Thrust Coefficient Tables (Gamma = 1.3)

 

e	Expansion area ratio
Me:	Mach number at exit plane
pe/pc:	Ratio of pressure at exit plane to chamber pressure
Cf-opt:	Thrust coefficient assuming optimal expansion
Cfv:	Vacuum thrust coefficient

epsilon M_e p_e/p_c C_f-opt C_fv

1.0 1.000 0.5459551 0.70922 1.25517

2.0 2.125 0.1063204 1.24830 1.46094

3.0 2.514 0.0555925 1.37039 1.53717

4.0 2.774 0.0359262 1.43799 1.58169

5.0 2.972 0.0258251 1.48296 1.61209

6.0 3.133 0.0198025 1.51586 1.63467

7.0 3.268 0.0158587 1.54136 1.65237

8.0 3.386 0.0131035 1.56195 1.66678

9.0 3.489 0.0110851 1.57906 1.67883

10.0 3.582 0.0095517 1.59359 1.68911

11.0 3.667 0.0083529 1.60616 1.69804

12.0 3.744 0.0073935 1.61717 1.70590

13.0 3.816 0.0066109 1.62694 1.71289

14.0 3.883 0.0059620 1.63569 1.71916

15.0 3.945 0.0054165 1.64360 1.72484

16.0 4.003 0.0049524 1.65078 1.73002

17.0 4.058 0.0045535 1.65736 1.73477

18.0 4.110 0.0042074 1.66341 1.73915

19.0 4.160 0.0039048 1.66901 1.74320

20.0 4.207 0.0036382 1.67421 1.74697

epsilon M_e p_e/p_c C_f-opt C_fv

21.0 4.252 0.0034018 1.67905 1.75049

22.0 4.295 0.0031909 1.68358 1.75378

23.0 4.336 0.0030019 1.68783 1.75687

24.0 4.376 0.0028316 1.69183 1.75979

25.0 4.414 0.0026775 1.69561 1.76254

26.0 4.451 0.0025374 1.69918 1.76515

27.0 4.487 0.0024097 1.70256 1.76762

28.0 4.521 0.0022928 1.70577 1.76997

29.0 4.554 0.0021855 1.70883 1.77221

30.0 4.586 0.0020866 1.71175 1.77435

31.0 4.618 0.0019953 1.71453 1.77639

32.0 4.648 0.0019108 1.71719 1.77834

33.0 4.677 0.0018323 1.71974 1.78021

34.0 4.706 0.0017593 1.72219 1.78201

35.0 4.734 0.0016913 1.72454 1.78373

36.0 4.761 0.0016277 1.72679 1.78539

37.0 4.788 0.0015681 1.72897 1.78699

38.0 4.814 0.0015123 1.73106 1.78853

39.0 4.839 0.0014599 1.73308 1.79001

40.0 4.864 0.0014106 1.73503 1.79145

epsilon M_e p_e/p_c C_f-opt C_fv

41.0 4.888 0.0013641 1.73691 1.79284

42.0 4.911 0.0013202 1.73873 1.79418

43.0 4.934 0.0012788 1.74049 1.79548

44.0 4.957 0.0012395 1.74220 1.79674

45.0 4.979 0.0012024 1.74385 1.79796

46.0 5.001 0.0011671 1.74545 1.79914

47.0 5.022 0.0011336 1.74701 1.80029

48.0 5.043 0.0011018 1.74852 1.80141

49.0 5.064 0.0010714 1.74999 1.80250

50.0 5.084 0.0010426 1.75142 1.80355

52.0 5.123 0.0009887 1.75417 1.80558

54.0 5.161 0.0009396 1.75677 1.80751

56.0 5.198 0.0008945 1.75925 1.80934

58.0 5.233 0.0008532 1.76161 1.81109

60.0 5.267 0.0008150 1.76386 1.81276

62.0 5.301 0.0007798 1.76601 1.81435

64.0 5.333 0.0007471 1.76806 1.81588

66.0 5.365 0.0007168 1.77004 1.81734

68.0 5.395 0.0006885 1.77193 1.81875

70.0 5.425 0.0006622 1.77374 1.82010

epsilon M_e p_e/p_c C_f-opt C_fv

72.0 5.455 0.0006376 1.77549 1.82140

74.0 5.483 0.0006145 1.77718 1.82265

76.0 5.511 0.0005929 1.77880 1.82386

78.0 5.538 0.0005725 1.78037 1.82502

80.0 5.564 0.0005534 1.78188 1.82615

82.0 5.590 0.0005353 1.78334 1.82724

84.0 5.616 0.0005183 1.78475 1.82829

86.0 5.640 0.0005022 1.78612 1.82931

88.0 5.665 0.0004869 1.78745 1.83030

90.0 5.689 0.0004724 1.78874 1.83126

95.0 5.746 0.0004394 1.79179 1.83354

100.0 5.801 0.0004102 1.79464 1.83566

105.0 5.854 0.0003843 1.79730 1.83764

110.0 5.904 0.0003611 1.79979 1.83951

115.0 5.953 0.0003402 1.80213 1.84126

120.0 5.999 0.0003214 1.80435 1.84291

125.0 6.044 0.0003043 1.80644 1.84447

130.0 6.087 0.0002888 1.80842 1.84596

135.0 6.129 0.0002746 1.81030 1.84736

140.0 6.170 0.0002616 1.81209 1.84870

epsilon M_e p_e/p_c C_f-opt C_fv

145.0 6.209 0.0002496 1.81379 1.84998

150.0 6.247 0.0002386 1.81542 1.85120

155.0 6.284 0.0002283 1.81698 1.85237

160.0 6.320 0.0002189 1.81847 1.85349

165.0 6.355 0.0002101 1.81990 1.85456

170.0 6.389 0.0002019 1.82127 1.85559

175.0 6.422 0.0001942 1.82259 1.85658

180.0 6.455 0.0001871 1.82386 1.85753

185.0 6.486 0.0001804 1.82508 1.85845

190.0 6.517 0.0001741 1.82626 1.85934

200.0 6.577 0.0001626 1.82850 1.86102

210.0 6.634 0.0001524 1.83059 1.86259

220.0 6.688 0.0001432 1.83256 1.86407

230.0 6.741 0.0001350 1.83441 1.86546

240.0 6.792 0.0001276 1.83615 1.86677

250.0 6.840 0.0001209 1.83780 1.86801

260.0 6.887 0.0001147 1.83936 1.86919

270.0 6.933 0.0001091 1.84085 1.87031

280.0 6.977 0.0001040 1.84226 1.87137

290.0 7.020 0.0000992 1.84361 1.87239

epsilon M_e p_e/p_c C_f-opt C_fv

Thrust Coefficient (gamma = 1.4) : Thrust Coefficient (gamma = 1.2)