Curtiss C-46 Commando

Curtiss C-46 Commando
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Name	Curtiss C-46 Commando
Caption	Curtiss C-46 Commando in flight
Type	Transport aircraft
Manufacturer	Curtiss-Wright Corporation
First flight	1940
Introduced	1941
Retired	varied
Primary user	United States Army Air Forces
Produced	3,181

Curtiss C-46 Commando The Curtiss C-46 Commando was a twin-engined transport aircraft developed by Curtiss-Wright during the late 1930s and produced in quantity for the United States Army Air Forces, Royal Air Force, and numerous civilian operators. Designed to carry heavy cargo and passengers across challenging routes, the type became notable for operations over the Himalayas, long-range logistical missions, and widespread postwar service with airlines and cargo firms. The Commando's rugged structure and high payload capacity made it a workhorse in theater operations involving China, India, Burma Campaign, and later commercial networks across the United States, South America, and Europe.

Development and Design

Curtiss-Wright designed the aircraft from the single radial-engined civil model built by Curtiss into a twin-engine military transport to meet requirements from the United States Army Air Corps and export customers including the Royal Air Force and the Soviet Union. The design incorporated a capacious fuselage, large cargo doors, and a reinforced floor to accommodate outsized loads such as engines and vehicles for operations supporting the China Burma India Theater and lend-lease deliveries to Soviet Union. Powerplants included Pratt & Whitney R-2800 Double Wasp engines and later variants with upgraded Wright R-2600 types, improving climb performance for mountain operations over the Himalayas known as "The Hump". Structural features borrowed from contemporary Curtiss designs and innovations in pressurization, fuel capacity, and electrical systems enabled extended-range flights to bases at Chungking, Kunming, and Calcutta. Development was influenced by tactical requirements emerging from the Battle of Britain, Operation Torch, and early Pacific War logistics, prompting rapid production scale-up at plants in Buffalo, New York and other Curtiss facilities.

Operational History

Early operational deployments saw the type assigned to Air Transport Command routes, supporting supply lines to China and Southeast Asia during the Burma Campaign and missions in support of General Joseph Stilwell's forces. RAF Command used Commandos for troop transport and freight in theaters including North Africa and Italy, while Soviet Air Forces crews operated lend-lease examples on the Eastern Front for strategic logistics. The type excelled on high-altitude, long-range runs where aircraft such as the Douglas C-47 Skytrain lacked payload or range, proving crucial in resupply for Chindits operations, paratroop drops in Operation Varsity adjuncts, and aeromedical evacuation work for United States Army units. Postwar, military surplus sales transferred Commandos to civil operators, cargo charters, and the fledgling cargo airlines that supported reconstruction in Germany, Japan, and the United Kingdom. The aircraft also performed notable roles in Berlin Airlift-era logistics and in support of United Nations relief missions in various crises.

Variants

Multiple military and civil variants were produced, reflecting diverse mission sets and customer modifications. Notable military versions included troop transport and cargo-configured models with differing engine fits and avionics suites tailored for USAAF and RAF service. Specialized adaptations included long-range ferry models for the Ferry Command operations, floatplane conversion proposals for Pacific island resupply, and tanker or glider-tug conversions experimented with by units associated with Air Transport Command and Army Air Forces Training Command. Civilian conversions furnished passenger seating, freight handling equipment, and freighter conversions for carriers such as Aero Transporte, operators in Brazil, Peru, and Colombia. Many variants underwent local refurbishments by maintenance depots at bases like Tinker Air Force Base and contractor facilities in Miami and Los Angeles.

Civilian Use and Airline Service

Following World War II, surplus Commandos entered service with major and regional airlines, cargo operators, and charter firms including firms linked to Pan American World Airways, Aerolíneas Argentinas-affiliated cargo companies, and independent freight carriers across North America and South America. The aircraft proved popular on transcontinental and high-and-short routes where its payload and range outperformed contemporaries such as the Douglas DC-3 and early Vickers Viking services. Operators used Commandos for mail contracts, mineral and agricultural freight hauling, passenger shuttle duties between hubs like New York and Chicago, and bush operations in remote regions including the Alaskan Bush and Amazonian routes servicing Manaus and Iquitos. The type's ruggedness made it a favorite for conversion into freighters and for ad hoc roles supporting film production, aerial surveying for companies like Pan American Petroleum, and humanitarian relief flights coordinated with organizations such as International Red Cross chapters.

Accidents and Incidents

The Commando's operational history included numerous accidents attributed to demanding service environments, high-utilization wartime operations, and maintenance variable standards among civilian operators. Notable incidents occurred during Hump operations over the Himalayas where weather, icing, and mountain wave turbulence resulted in losses that involved crews from units tied to Air Transport Command and allied squadrons. Postwar civil incidents involved cargo fires, hydraulic failures, and runway overruns at airports including LaGuardia Airport, Miami International Airport, and remote jungle airstrips in Peru and Colombia. Investigations by boards such as civilian aviation authorities and military courts-martial led to airworthiness directives, modifications to fuel and electrical systems, and enhanced pilot training programs affiliated with schools in Cleveland and Oakland.

Surviving Aircraft and Museums

A number of airframes survive in museums, static displays, and airworthy collections. Examples are preserved at institutions such as the National Museum of the United States Air Force, Smithsonian National Air and Space Museum-affiliate sites, and regional museums in California, Ohio, and Pennsylvania. International displays include exhibits in museums in Brazil, China historical collections, and restored survivors maintained by preservation groups in United Kingdom and Australia. Several privately owned Commandos appear at airshows organized by groups linked to Experimental Aircraft Association chapters and historic flight foundations, often supported by volunteers from veteran associations and restoration workshops at facilities like Pima Air & Space Museum and local restoration businesses.

Category:Cargo aircraft Category:World War II transport aircraft