Medflight crews can be found by spouses of patients with a social work specialist. Likewise , medivac fleets are mandatory on account of the fact that they cannot be aboard the big commercial airplane services . That is because they are not in a medically self sustaining situation. Many elderly men and women call for respiratory support ; and consequently these are the cases that are unable to fly on the normal airline outfit. The patients that are visiting away from their own country and/or have a medical necessity to be transported to another facility receive help from non emergency air ambulance fleets. At times there are medflight charters that transfer patients between hospitals everywhere in the United States.