Table:
text: Jet engine
Consumption of fuel or propellant
Specific fuel consumption (SFC), specific impulse, and effective exhaust velocity numbers for various rocket and jet engines.
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
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

Question: What type of engine is used in a space shuttle vacuum scenario for jet engines?

Question: What is the effective exhaust velocity of a jet engine in a space shuttle vacuum?

Question: What is the maximum specific impulse of a jet engine with an effective exhaust velocity of 4423 m/s?

Question: What is the SFC if the specific impulse is 453 for a jet engine?