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Contemplating the expansion ratio and mach number of miscellaneous high-expansion rocket engines. The mach number is from Figure 3.1 on page 39, assuming a specific heat ratio of 1.3: Contemplating the expansion ratio and mach number of miscellaneous high-expansion rocket engines. The mach number is from Figure 3.1 on page 39 of Sutton, assuming a specific heat ratio of 1.3:
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|| || ratio || mach ||   || || ratio || mach ||
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|| SpaceX Merlin Vacuum 1D || 165.1 || 6.36 ||
|| Laser Ablation Thrust || 2.95 || 2.50 || 
|| SpaceX Merlin Vacuum 1D || 165   || 6.36 ||
||<-3> from Phipps and Michaelis 1994; can we do better?
||
|| Laser Ablation Thrust || 2.95 || 2.50 ||

Rocket Engines

Contemplating the expansion ratio and mach number of miscellaneous high-expansion rocket engines. The mach number is from Figure 3.1 on page 39 of Sutton, assuming a specific heat ratio of 1.3:

ratio

mach

Saturn V first stage F1

16.1

4.01

Saturn V 2nd/3rd J2

27.5

4.50

Apollo SM AJ10-137

62.5

5.31

Shuttle SSME RS-25

77.5

5.53

SpaceX Merlin Vacuum 1C

14.5

3.91

SpaceX Merlin Vacuum 1D

165

6.36

from Phipps and Michaelis 1994; can we do better?

Laser Ablation Thrust

2.95

2.50

RocketEngines (last edited 2019-06-17 02:16:22 by KeithLofstrom)