Interior view of Drafting Room in Engine Research Building showing men at work at the Aircraft Engine Research Laboratory. This building was considered the research heart of NACA Lewis. It was built by the Sam W. Emerson Company and was completed in 1942. It is a multipurpose flexible space covering more than 4.25 acres and can be changed according to research priorities. The Aircraft Engine Research Center, Cleveland Ohio, is now known as the John H. Glenn Research Center at Lewis Field.