Content Description The Avro Lancaster technical report and letter is a small collection of textual materials about the Avro Lancaster from 1942. The collection includes one bound volume with information about the Avro Lancaster bomber including a general description, information on the Merlin and Hercules engines, technical data, plans and elevation drawings, and proposed bomb placement diagrams. The plans and elevation drawings are folded into the volume but unfold to dimensions of about 29x39 inches. A...