This specification is for the general requirements of a Aerial Bulk Fuel Delivery System (ABFDS) and a ABFDS with Alternate Capability Equipment (ACE). Throughout this specification the ABFDS with ACE will be referred to as "Unit". The Unit will have altitude capabilities consistent with the specified aircraft and be of a size and capability that may be accommodated by the aircraft. The Unit will be suitable for the delivery of motor, jet, avgas and diesel fuels.