Russian Billionaire Roman Abramovich is awaiting the delivery of a yacht he bought for $354 million- reportedly the world's largest private yacht capable of fending off pirates.

The 500-foot Eclipse, about two-thirds the size of the German World War II battleship Bismarck, is equipped with a missile detector and radar equipment, and has bullet-proof windows and armor plating to protect the 41 year old Abramovich from pirates.

The yacht also has a yellow submarine which can dive 160 feet below water to escape a pirate attack. It was rumored that Abramovich will deploy 70 SAS and SBS staff.

It will have cabins for 24 guests, a cinema, aquarium, disco, hospital, twin helipads and will contain a fleet of limousines, which could be easily rolled off through a side door.

Eclipse, which is currently being built in Hamburg, Germany, is also the largest yacht in Abramovich's prized collections, which includes the 377-foot Pelorus, 282-foot Ecstasea and 160-foot Sussurro.

The Chelsea Football Club owner, together with his girlfriend Daria Zhukova, plans to sail to South Africa to attend the World Cup in 2010.

The Eclipse's state-of-the-art security system will provide extra protection when the yacht passes through the Mozambique Channel, where Somali pirates thrive.

Last month, Somali pirates demanded ransom when they captured an Ukranian cargo ship carrying 33 Russian tanks.

In 2007, the International Maritime Organization reported 269 sea attacks with five people dead. Some 300 seafarers were taken hostage.