Table: northrop_m2_f3_flights
Columns: vehicle_flight
date
pilot
mach
velocity_km_h
altitude_ft
duration

Question: Who is the pilot on September 27, 1972?
SQL: SELECT "pilot" FROM northrop_m2_f3_flights WHERE "date" = 'september 27, 1972'

Question: What is the lowest altitude of the flight with a mach bigger than 0.905 and a duration of 00:06:17?
SQL: SELECT MIN("altitude_ft") FROM northrop_m2_f3_flights WHERE "mach" > 0.905 AND "duration" = '00:06:17'