Bell's mid-engined P-39 Airacobra was featured in a Design Analysis article [ PDF, 28 MiB ], [ HTML ] in the May, 1943, issue of Aviation magazine.
The PDF is recovered from microfilm.
Air Tech also published a fairly detailed design analysis [ HTML ], in their August, 1944, issue.

While not the darling of the press that some of the other planes herein were, the Airacobra nonetheless garnered its fair share of magazine articles.

Because of its close relationship, the P-63 Kingcobra and XFL-1 Airabonita are included in this page. The P-63 was widely considered to be a straightforward upgrade of the P-39. The XFL was an experimental modification for carrier use; it would appear that the US Navy was not prepared to deal with tricycle landing gear or liquid-cooled engines on their carriers in 1939.