The maximum angle at which a ship can tip, or heel, before capsizing, or flipping over, depends on a number of factors, including the ship's design, the distribution of its weight, and the conditions of the sea. In general, ships are designed to have a certain maximum heel angle, known as the "angle of loll," beyond which they become unstable and are at risk of capsizing. For most ships, the angle of loll is around 15-20 degrees, although it can vary depending on the specific design of the vessel. This means that a ship can heel, or tip, up to this angle without capsizing. However, if the ship continues to heel beyond this angle, it becomes increasingly unstable and may be at risk of capsizing. It's important to note, however, that the angle of loll is just a theoretical limit and does not necessarily indicate the point at which a ship will definitely capsize. In reality, the likelihood of a ship capsizing depends on a number of other factors, including the ship's stability and seaworthiness, the size and strength of the waves it is encountering, and the actions of the crew.