The second part of the article on the Bell D188 is now up at
RetroMechanix.com:
It covers a wind tunnel report on the design and features 18 images, including several nice photos and general arrangement drawings of the model, which differs slightly from the finalized design in the proposal brochure.
Continuing the Bell VTOL aircraft theme, there is an article up on
Bell VTOL Aircraft Projects of October 1955:
This summarizes a brochure highlighting various Bell VTOL aircraft studies and features excellent general arrangement drawings and artist's impressions of several projects, including the Bell D139 shown above.
Finally, there is a short article on the
Bell Aircraft Corporation Twenty-First Annual Report of 1956:
It's accompanied by several nice color photos and illustrations excerpted from the document.
Some improvements have also been made to the site, with several ads being removed and the right hand sidebar being de-cluttered, hopefully improving the load time. I hope you find the material of interest.
-Jared