|J.E. Pryde-Hughes (Editor). The Children's Book of Achievement. Wonders of Modern Enterprise. London & Glasgow: Collins Clear-Type Press, 1953.|
Mercury first crossed the Atlantic in 1938. The war put paid to the approach. Maia was destroyed at harbour by German bombs in May 1941. The same year, Mercury was broken up for the value of her aluminum for the war effort. While the idea of a composite aircraft may have been destined to become just a footnote in aviation history, the idea was revived in 1976 as the inspiration for ferrying the space shuttle on a Boeing 747.
More (and better) pics and info on Mister G's earlier post.
You can watch the aircraft flying on youtube.