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In Avatar (2009), a man speaks to a pilot in a jet via radio:
MAN :Valkyrie 1-6, copy...Valkyrie 1-6, you are clear for de-orbit burn at 2-2-4-niner. Pilot: Copy, Venture Star. Go for de-orbit burn at 2-2-4-niner.
MAN :Valkyrie 1-6, copy...Valkyrie 1-6, you are clear for de-orbit burn at 2-2-4-niner.
Pilot: Copy, Venture Star. Go for de-orbit burn at 2-2-4-niner.
What does "2-2-4-niner" mean?