SA 321 Super Frelon

The SA 321 Super Frelon was Sud Aviation's large heavy-lift helicopter design, produced for French and export users. Its development answered the need for a larger rotorcraft capable of carrying troops, cargo, rescue equipment, or naval mission systems. The type also influenced later Chinese Z-8 family development, extending its design legacy beyond French service.

Technically, the Super Frelon was distinguished by its three Turbomeca engines mounted above the fuselage and a large single-rotor layout. The airframe could be fitted for troop transport, cargo, anti-submarine warfare, search and rescue, or maritime support. Naval versions used radar and specialized equipment, while the large cabin and lift capacity made the helicopter valuable for long-range rescue and assault support.

In service, the Super Frelon was strongly associated with maritime aviation. French naval helicopters performed long-range rescue and support missions, while export users adopted the type for transport or naval tasks. Its size and three-engine safety margin made it useful over water and in demanding rescue situations, even after newer helicopter types began replacing it.