thrust specific fuel consumption 

Statements about this table:
1900 be the specific impulse for the engine with a scenario of sr - 71 at mach 3.2 (wet)
the engine in the sr - 71 at mach 3.2 (wet) scenario have a specific impulse of 1900
for the ramjet engine , 0.605 be the average sfc in lb / (lbf h) for engine with an effective exhaust velocity (m / s) of 58400 , and a sfc in g / (kn s) of 17.1
1900 second be the specific impulse for the ssme rocket engine with a scenario of sr - 71 at mach 3.2 (wet)
for the engine type j - 58 turbojet , the scenario be mach 1 and the effective exhaust velocity (m / s) be 7877
the specific impulse (s) for the roll - royce / snecma olympus 593 engine type be 5950
the specific impulse (s) of 453 be for the ramjet in the vacuum scenario
engine type
scenario
sfc in lb / (lbf h)
sfc in g / (kn s)
specific impulse (s)
effective exhaust velocity (m / s)
nk - 33 rocket engine
vacuum
10.9
309
331
3240
ssme rocket engine
space shuttle vacuum
7.95
225
453
4423
ramjet
mach 1
4.5
127
800
7877
j - 58 turbojet
sr - 71 at mach 3.2 (wet)
1.9
53.8
1900
18587
engine type
scenario
sfc in lb / (lbf h)
sfc in g / (kn s)
specific impulse (s)
effective exhaust velocity (m / s)
rolls - royce / snecma olympus 593
concorde mach 2 cruise (dry)
1.195
33.8
3012
29553
cf6 - 80c2b1f turbofan
boeing 747 - 400 cruise
0.605
17.1
5950
58400
general electric cf6 turbofan
sea level
0.307
8.696
11700
115000