flight envelope
in aerodynamics, the capabilities of a design in terms of airspeed and load factor or atmospheric density, often simplified to altitude for Earth-based aircraft
en-GB/ˈflaɪt ˈɛnvələʊp/
en-US/ˈflaɪt ˌɑnvəˌloʊp/
in aerodynamics, the capabilities of a design in terms of airspeed and load factor or atmospheric density, often simplified to altitude for Earth-based aircraft