Which outcome occurs if a shipwright alters the deadrise angle of a 17th-century sailing vessel during construction?

💡 Explanation

Decreasing deadrise increases initial stability up to a point BUT reduces ultimate stability; because the center of buoyancy shifts less for small angles, roll instability occurs therefore, rather than benefitial resistance, especially compared to sharper angles built historically.

• Which mechanism caused increased longship sail efficiency when Vikings began using twisted wool rope to control sail angle?
• Which outcome increased the likelihood of capsize for Viking longships during transoceanic voyages along the North Atlantic?
• Which risk significantly increased for 18th-century wooden sailing ships using charcoal braziers below decks for heating?
• When using relatively impure cast iron, which outcome risks occurring due to thermal stress in early cannons?
• Which outcome occurs when using quadrant astrolabes for navigation?
• Which consequence occurs to fragile Byzantine mosaics during earthquakes?