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Access into the turret either by way of the hatch on the left of the turret roof for the loader or another atop the Commander's cupola at the rear right. The traditional hatches in the turret roof were not the only point of entry, however. If needed, the entire turret roof had the ability to raise up via hydraulic systems and could rise to almost a full 90 degrees. This allowed full access to the interior of the turret, easy removal of the gun and loading system, and quick ammunition resupply. In case of emergency, it also allowed for a quick exit of the turret. This was operated by a control in the Loader's position.