flight envelope

(redirected from flight envelopes)

flight envelope

[′flīt ‚en·və‚lōp]
(aerospace engineering)
The boundary depicting, for a specific aircraft, the limits of speed, altitude, and acceleration which that aircraft cannot safely exceed.

flight envelope

flight envelopeclick for a larger image
The defined conditions of air speed, altitude, g loading, sideslip, etc. the aircraft is permitted to operate within. It is a graph in which curves of the speed are plotted against altitude or other variables. It indicates the limits within which the aircraft can be operated safely.
References in periodicals archive ?
Tejas got first IOC in 2011 when its limited capabilities were certified in limited flight envelopes.
High complexity flight envelopes such as fully autonomous flights were conducted in both day and night conditions demonstrating convoy shadowing capability, EO/IR sensor utilisation, precision landing as well as long range missions using tactical hand-over between ground control stations using Saab's flexible stationary and mobile ground control station.
Reportedly, high complexity flight envelopes, such as fully autonomous flights were conducted in both day and night conditions demonstrating convoy shadowing capability, EO/IR sensor utilisation, precision landing, as well as long range missions using Tactical Hand-Over between Ground Control Stations using Saab's flexible stationary and mobile ground control station.
Test data allowed both the day and night flight envelopes to be significantly increased, and the aircraft is now able to operate off LHDs with wind speeds of up to 45 knots off the bow.