The Boulton and Paul P.64 mail-carrier : a two-engine all-metal biplane
A 1932 technical report on the Boulton and Paul P.64, a two-engine all-metal biplane mail carrier, issued through the NASA Technical Reports Server with its figures drawn from period aviation texts and circulars. Its pictures are precise line drawings of engine nacelles, landing gear, truss framing, cockpit controls and tail-unit linkages, offering a designer clean mechanical diagrams with strong diagonal structure and labelled callouts.
