CH46

CH46 is a designation that can refer to several different entities, most notably a specific type of helicopter or a chemical compound. In the context of aviation, CH46 commonly refers to the Boeing Vertol CH-46 Sea Knight, a medium-lift tandem-rotor helicopter. Developed by Vertol (later acquired by Boeing), the CH-46 served with the United States Marine Corps, U.S. Navy, and Royal Canadian Air Force. It was primarily used for troop transport, cargo movement, and search and rescue missions. The distinctive tandem rotor configuration, with one rotor in front and another in the rear, provided stability and allowed for vertical takeoff and landing. The Sea Knight saw extensive service in various conflicts and operations, earning a reputation for its reliability.

Alternatively, CH46 can also refer to methane, a chemical compound with the formula CH4. Methane is the simplest hydrocarbon and the primary component of natural gas. It is a colorless, odorless gas and is a potent greenhouse gas. Methane plays a significant role in Earth's climate system. It is produced through various natural processes, such as the decomposition of organic matter by anaerobic bacteria, and through human activities like agriculture, fossil fuel extraction, and waste management. Its chemical structure consists of one carbon atom bonded to four hydrogen atoms.