The Bristol 156 Beaufighter was the subject of a Design Analysis article in the March, 1944 issue of Aviation magazine [ PDF, 20.4 MiB ] , [ HTML ].

The final version will be compiled from scans of the original pages. There will also be some supplementary material from magazine articles, but the Beaufighter wasn't a plane that got a lot of press in the US.

The Beaufighter was developed using many components from the Bristol 152 Beaufort, which is included here. The Beaufort itself was developed from the Bristol 142M Blenheim.

Researching Australian-built Beauforts highlighted for me the confusion and frustration that can arise when trying to determine models and configurations.
I had three book references available — Jane's Fighting Aircraft of World War II, Graham White's SAE work, Allied Aircraft Piston Engines of World War II, and The Encyclopedia of Aircraft of WWII, edited by Paul Eden — plus the Wikipedia and other WWW articles, and was undertaking to define the engines and Marks of the Australian-built Beauforts.