CFRP is very obvious in improving the structure, energy consumption and maneuverability of ships.
Sweden has traditional advantages in boat manufacturing technology. Its sandwich composite material technology ranks first in the world. It has adopted CFRP technology to develop military ships earlier.
The Swedish navy frigate launched in June 2000 is the world's first naval vessel to use CFRP in its hull structure. The ship has a length of 73.0 m, a width of 10.4 m, a draft of 2.4 m, and a displacement of 600 t; the hull adopts a CFRP sandwich structure, which has high strength, high hardness, low quality, impact resistance, low radar and magnetic field signals, and excellent electromagnetic wave absorption. performance.
Due to cost reasons, although it will take time for CFRP to be widely used in ships, it has actually been used to manufacture new-concept civil ships and key components of military ships. In 2010, the German Kockums company manufactured a new concept solar expedition ship that almost all uses CFRP. The ship is 31.0 m long and 15.0 m wide, powered by solar energy. On September 27, 2010, Swedish explorers drove the ship out to sea and began a voyage around the world.
CFRP has also been used in the manufacture of ship propeller blades, integrated masts and advanced surface ship superstructures.
Low noise and quiet operation is a core technology in the field of military ships and a key indicator of the performance of ships (especially submarines). Because when the propeller is running at high speed, cavitation will be generated on the blades of the propeller, which causes the blades to be eroded, accompanied by strong vibration and noise. CFRP blades are not only lighter and thinner, but also improve cavitation performance, reduce vibration and underwater characteristics, and reduce fuel consumption. For example: CFRP submarine propeller developed by Israel; CFRP large freighter propeller. The CFRP propeller system produced by British Royce Rolls for Benetti Yachts.