Paduga originally envisioned the project while crewing a sailing yacht from Palawan to Africa. BW Fleet Management is in charge of newbuildings and crewing. Other duties vary depending on the type of ship, its crewing, and other factors. There were approximately 20 to 40 civilian contractors crewing the ship. The ambulance staff crewing these flights are generally seconded from the local NHS ambulance service. The Athenian Navy consisted of 80,000 men crewing 400 ships. They were operated by Transportation Corps with a variety of crewing schemes. These are responsible for crewing, training, equipping and maintaining MSC's government-owned, government-operated ships. The accident flight crewing was unusual in several respects. The writer David Brin's book "Startide Rising" is about genetically engineered dolphins crewing a spaceship. Inc. (PTC), one of the country's leading companies in crewing management. In Royal Indian Navy (RIN) service, crewing LCAs followed somewhat similar lines. The MARAD report referred to both China and the Philippines as "low cost" crewing sources. Adults often learn in Spirals or Sabres or by crewing in NS14s or Tasars. The investigation found that crewing of the train was insufficient.