Not exactly. I downloaded them from the Aviation Week 100 Year Archive of issues, which you can get access to if you subscribe to the magazine.
Their Design Analyses on the P-38, P-39, P-51, B-17, B-24, DH98 Mosquito, A6M3, Fw-190, Me-262, Junkers Propeller, Mitsubishi Kinsei engine are the really good items. The P-39 article is really huge, thirty pages explaining the design and construction. There are numerous other smaller articles along the lines of the one on the drop tanks, such as Building the B-25 and substituting non-metallic materials in the BT-13. In the case of the A6M3 they even got access to a captured Zero and took it apart
It is fabulous stuff and I have spent much of my spare time looking through it for the past week or so. For example look at this Mossie drawing: