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Questions tagged [dc-4]

The Douglas DC-4A is an unpressurized, four-piston-engine propeller-driven airliner, produced between 1942 and 1947. It was based on an earlier, larger variant, the DC-4E.

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How should I interpret the Douglas DC-4 approach climb performance chart?

Can someone explain what "C = .04 Vso2" means as the "denotes required rate of climb?". I assumed the point at 6500 ft altitude and 60,000lbs landing weight will mean that the required rate of climb ...
2
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1answer
228 views

Are there big differences between Douglas Commercial 3 and Douglas Commercial 4?

I always thought of the DC-4 as a DC-3 with two added engines and somewhat improved hydros. What are the actual differences between them?
3
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264 views

Why do DC-4 landing performance charts have different values for the intended and alternate destinations?

I am studying the landing performances of the old Douglas DC-4 and there are a lot of different landing performance charts available. The pilots can use different flap settings during landing like 45, ...