N.A.C.A. Aircraft Circular i\o.l9 Figs. 1 & 2 Figs. 1 & 2 Views of the Bristol "Badminton" airplane, showing the very neat ccAilin^- over the Bristol "Jupiter" air-cooled entwine.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
