Passenger amenities are removed or not installed, although there are usually basic comfort facilities for the crew such as a galley, lavatory, and bunks in larger planes.In the UK during the early 1920s, the need was recognized for a freighter aircraft to transport troops and material quickly to pacify tribal revolts in the newly occupied territories of the Middle East.[4][5] Vickers Victorias played an important part in the Kabul Airlift of November 1928 – February 1929, when they evacuated diplomatic staff and their dependents together with members of the Afghan royal family endangered by a civil war.[8] A similar rear loading ramp even appeared in a somewhat different form on the nosewheel gear-equipped, late WW II era American Budd RB-1 Conestoga twin-engined cargo aircraft.But it was the introduction of the turboprop that allowed the class to mature, and even one of its earliest examples, the C-130 Hercules, in the 21st century as the Lockheed Martin C-130J, is still the yardstick against which newer military transport aircraft designs are measured.The "bump" on the top of the fuselage allows the crew area to be clear of the cargo containers sliding out of the front in the event of an accident.When the Airbus A380 was announced, the maker originally accepted orders for the freighter version A380F, offering the second largest payload capacity of any cargo aircraft, exceeded only by the An-225.Since they have not been designed specifically for air cargo, loading and unloading is not optimized; the aircraft may be pressurized more than necessary, and there may be unnecessary apparatus for passenger safety.To help resolve this disagreement, the National Aeronautics and Space Administration (NASA) selected two contractors, Douglas Aircraft Co. and Lockheed-Georgia Co., to independently evaluate the possibility of producing such a freighter by 1990.There are some possible drawbacks, as the restrictions executed by joint development, the punishments that would be suffered by both civil and military airplanes, and the difficulty in discovering an organizational structure that authorizes their compromise.Interconnecting 1.5–15.2-metre-long (5–50 ft) long aluminum containers carry the flight loads, aiming to lower overseas airfreight costs by 60%, and plan to convert C-130H with the help of Wagner Aeronautical of San Diego, experienced in passenger-to-cargo conversions.[23] Beijing-based Beihang UAS Technology developed its BZK-005 high-altitude, long-range UAV for cargo transport, capable of carrying 1.2 t (2,600 lb) over 1,200 km (650 nmi) at 5,000 m (16,000 ft).
The
Vickers Vernon
, introduced in 1921, was the first cargo plane for military troops
The
Arado Ar 232
, the first purpose built cargo aircraft