engine type                      scenario  sfc in lb / (lbf h)  sfc in g / (kn s)  specific impulse (s)  effective exhaust velocity (m / s)
0               nk - 33 rocket engine                        vacuum               10.900            309.000                   331                                3240
1                  ssme rocket engine          space shuttle vacuum                7.950            225.000                   453                                4423
2                              ramjet                        mach 1                4.500            127.000                   800                                7877
3                     j - 58 turbojet     sr - 71 at mach 3.2 (wet)                1.900             53.800                  1900                               18587
4  rolls - royce / snecma olympus 593  concorde mach 2 cruise (dry)                1.195             33.800                  3012                               29553
5              cf6 - 80c2b1f turbofan       boeing 747 - 400 cruise                0.605             17.100                  5950                               58400
6       general electric cf6 turbofan                     sea level                0.307              8.696                 11700                              115000

Table as JSON:
{"engine type":{"0":"nk - 33 rocket engine","1":"ssme rocket engine","2":"ramjet","3":"j - 58 turbojet","4":"rolls - royce \/ snecma olympus 593","5":"cf6 - 80c2b1f turbofan","6":"general electric cf6 turbofan"},"scenario":{"0":"vacuum","1":"space shuttle vacuum","2":"mach 1","3":"sr - 71 at mach 3.2 (wet)","4":"concorde mach 2 cruise (dry)","5":"boeing 747 - 400 cruise","6":"sea level"},"sfc in lb \/ (lbf h)":{"0":10.9,"1":7.95,"2":4.5,"3":1.9,"4":1.195,"5":0.605,"6":0.307},"sfc in g \/ (kn s)":{"0":309.0,"1":225.0,"2":127.0,"3":53.8,"4":33.8,"5":17.1,"6":8.696},"specific impulse (s)":{"0":331,"1":453,"2":800,"3":1900,"4":3012,"5":5950,"6":11700},"effective exhaust velocity (m \/ s)":{"0":3240,"1":4423,"2":7877,"3":18587,"4":29553,"5":58400,"6":115000}}