"Pushing The Envelope"
This phrase is used to refer to an aircraft being taken to, and perhaps beyond, its designated altitude and speed limits. By extension, this phrase may be used to mean testing other limits, either within aerospace or in other fields e.g. Plus ultra (motto).
Read more about this topic: Flight Envelope
Famous quotes containing the words pushing the, pushing and/or envelope:
“Their beauty has thickened.
Something is pushing them
To the side of their own lives.”
—Philip Larkin (1922–1986)
“I have learned to walk: since then, I have indulged myself in running. I have learned to fly: since then, I do not want anybody pushing me to get me going.”
—Friedrich Nietzsche (1844–1900)
“Geroge Peatty: I’m gonna have it, Sherry. Hundreds of thousands, maybe a half million.
Sherry Peatty: Of course you are, darling. Did you put the right address on the envelope when you sent it to the North Pole?”
—Stanley Kubrick (b. 1928)