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**. What does "2-2-4-niner" mean?