Tolong jelaskan mengenai Amphibious capability dari BTR-60

The BTR-60 is fully amphibious, propelled in the water by a jet centrally mounted at the rear of the hull. It was, however, prone to breakdowns. When not in use, it is protected by the sideways opening lids. Before entering the water, the trim vane at the front of the hull should be erected to prevent water from flooding over the bow. While in its traveling position, it serves as additional lower frontal armor.