The Sikorsky S-64E Skycrane is a versatile helicopter used for construction, installation work, and transporting large cargo. It also serves in rescue operations, carrying a special container adapted for rescue services. These containers were originally developed by the military for CH-54 army helicopters to expand their transport capabilities. Each container featured windows, doors, and a rear ramp, allowing it to carry military equipment such as artillery pieces or light all-terrain vehicles. The containers were even used for parachute deployment of soldiers. A total of 22 containers were built, each with its own military registration number. The containers now used with the Sikorsky S-64E Skycrane are former military units repainted in the bright orange colour scheme typical of civilian S- 64 helicopters.