A USAF C21 has been added to both Bray and Shannon airshows. Shannon takes place on July 18th and Bray on the 19th July. The USAF C-21 is a twin turbofan-engine aircraft used for cargo and passenger airlift. The aircraft is the military version of the Lear Jet 35A business jet. In addition to providing cargo and passenger airlift, the aircraft is capable of transporting one litter or five ambulatory patients during aeromedical evacuations.