flight envelope

(redirected from Doghouse plot)

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.