ISBN: | 978-5-5145-0925-6 |
High Quality Content by WIKIPEDIA articles! The Curtiss-Wright Model 21 (also known as the Curtiss-Wright Model 21 Demonstrator, the Curtiss-Wright CW-21 Interceptor, the Curtiss-Wright CW-21 Demon) was a United States-built fighter interceptor, developed by the St. Louis Airplane Division of Curtiss-Wright Corporation during the 1930s.