The power-off glide range for an airplane with a maximum Lift to Drag ratio of $18,$ when the glide starts at an altitude of $4 \mathrm{~km}$, is__________ $\mathrm{km}$ (round off to the nearest integer).

The power-off glide range for an airplane with a maximum Lift to Drag ratio of $18,$ when the glide starts at an altitude of $4 \mathrm{~km}$, is__________ $\mathrm{km}$ (round off to the nearest integer).

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