Airmanship is skill and knowledge applied to aerial navigation, similar to seamanship in maritime navigation. These junior sailing programs often also teach children rowing, kayaking, general seamanship and navigation. Coast Guard boot camp covers basic seamanship, drill, military bearing and firefighting. They received basic training in seamanship and carpentry, enabling them to sail the ships. A school was also formed, which taught midshipmen seamanship and navigation courses. Outdoor activities and skills such as seamanship and mountaineering are emphasized. The major emphasis is laid on Navigation, Seamanship and Communication. Boatswain's mates are masters of seamanship. Skills in mountaineering and seamanship were always taught at the school. The Haida are known for their craftsmanship, trading skills, and seamanship. This negated initially superior Carthaginian seamanship and ships. Superior English ships and seamanship had foiled the invasion. They included engineering, combat, seamanship, and battle scenario training exercises. Using superior seamanship and masterful tactics, Hornblower sinks the more powerful "Natividad". The service was arduous and called for both energy and good seamanship.