The Douglas C-54 Skymaster was the first 4-engine transport in the USAAF and probably saw the most service among the 4-engined birds. The C-54 was the subject of a Design Analysis [ HTML ] article in the September, 1944 issue of Industrial Aviation. So far, I have not been able to obtain a copy of the foldout color cutaway rendering from that article, nor from the reprint in Flying.
The DC-4E, from which the DC-4 and C-54 were developed, is considered to have been the inspiration for the Japanese Nakajima G5N Liz.
The Skymaster, being the largest transport in regular operations, garnered a few articles:
- A news clip from the "Aviation News" feature, "DC-4 in the Army now" [ HTML ] is an early mention of the C-54.
- "The Douglas C-54" [ HTML ] is a basic introductory article.
- "Sky Freighter" [ HTML ] offers an introduction to the Skymaster.
- Before the Columbine, before Air Force One, there was the original "Flying White House" [ HTML ].
- Sketchbook drawing shows DC-4 landing gear as on the plane delivered prewar to the Japanese.
- Photo of a C-54, gear down taking off. From a news clip, "DC-4 in the Army now." Photo credited to Three Lions.
- The "Have You Seen?" section for May, 1942, shows a DC-4 on final approach, apparently to the El Segundo airport in Southern California.
- Detail drawing of C-54 nose wheel from the "Aviation's Sketchbook of Design Detail" column.
- Photo of a C-54 seen from 10 o'clock high (shown above).
- Package of drawings from the June, July and September, 1945, "Aviation's Sketchbook of Design Detail" columns:"
- A color Gallery photo shows a C-54 in flight, seen from 10 o'clock high. Plane is in freshly polished bare-metal finish. Nose number is 134; tail number is not readable. Caption reads "An Army Douglas Skymaster just after taking off for an overseas flight."
Additional Information from Technical Orders
AN 01-40NU-1 Handbook Flight Operating Instructions