Travel Air Mystery Ship airplane model. The Travel Air Mystery Ship was built by Travel Air incorporated whose president was Walter Beech, who loved air racing, and was designed by Herb Rawdon and Walter Burnham, the aircraft utilized a fixed landing gear and was one of the first low wing monoplanes. Wingspan measured 29 feet 2inches, with an overall length of 20 feet 2 inches. With its advanced enclosed cowling and a 400+ H.P. Wright J6-9(R-975) radial engine, it was able to set speed records in excess of 235 mph.