Which disadvantage results when Viking longship sails suffered catenary sag?

💡 Explanation

Reduced maneuverability results from catenary sag, because the sail's shape is compromised, therefore sail effectiveness decreases at the edges; rather than increased hull stress, as this is mitigated by flexible construction.

• Which navigational error contributed most to shipwrecks before widespread adoption of Harrison's chronometer?
• Which adjustment was vital during 18th-century celestial navigation when a ship experienced significant roll?
• Which structural challenge did Roman engineers primarily address when constructing large bathhouses with hypocaust heating systems?
• Which accuracy risk increased for 18th-century open-balance escapement chronometers during long sea voyages near the equator?
• Which structural problem commonly afflicted 18th-century warships despite coppering efforts aimed to prevent marine biofouling?
• Which mechanism limited the accuracy of planetary positions projected by pre-17th-century astrolabes?