thrust specific fuel consumption
the thrust engines have an average effective exhaust velocity of 33869 meters per second .
{'scope': 'all', 'col': '6', 'type': 'average', 'result': '33869', 'subset': None}
{'func': 'round_eq', 'args': [{'func': 'avg', 'args': ['all_rows', 'effective exhaust velocity ( m / s )'], 'result': '33869', 'ind': 0, 'tostr': 'avg { all_rows ; effective exhaust velocity ( m / s ) }'}, '33869'], 'result': True, 'ind': 1, 'tostr': 'round_eq { avg { all_rows ; effective exhaust velocity ( m / s ) } ; 33869 } = true', 'tointer': 'the average of the effective exhaust velocity ( m / s ) record of all rows is 33869 .'}
round_eq { avg { all_rows ; effective exhaust velocity ( m / s ) } ; 33869 } = true
the average of the effective exhaust velocity ( m / s ) record of all rows is 33869 .
{'eq_1': 'eq', 'result_2': 'true', 'avg_0': 'avg', 'all_rows_3': 'all_rows', 'effective exhaust velocity (m / s)_4': 'effective exhaust velocity ( m / s )', '33869_5': '33869'}
['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'], ['general electric cf6 turbofan', 'sea level', '0.307', '8.696', '11700', '115000']]