The accident was the first fatal accident involving a twin-engine helicopter in Australia since 1986.

The Eurocopter UH-72 Lakota is a twin-engine helicopter with a single, four-bladed main rotor.

The Bell 206 is a family of two-bladed, single- or twin-engine helicopters, manufactured by Bell Helicopter at its Mirabel, Quebec plant.

For example, the Mayo Clinic, which gets its craft and crews from an aviation company, requires pilots to have 5,000 hours of experience and uses only twin-engine helicopters.

The Kawasaki BK117 is a twin-engine helicopter, which has been upgraded to B2 specification.

The Bell 429 is a light, twin-engine helicopter developed by Bell Helicopter and Korea Aerospace Industries, based on the Bell 427.

The ship's designer, Colin Mudie, said he had included a helipad to land twin-engine helicopters used by the royal family.

The SA 330 Puma is a twin-engine helicopter intended for personnel transport and logistic support duties.

The Bell 400 TwinRanger was a prototype four-bladed, twin-engine civil helicopter developed by Bell Helicopter in the 1980s.

The Sikorsky S-61R is a twin-engine helicopter used in transport or search and rescue roles.