The Piper PA-48 Enforcer is an American turboprop-powered light close air support aircraft built by Piper in the 1970s. It is a development of the World War II-era North American P-51 Mustang fighter. The Enforcer concept was originally created and flown as the Cavalier Mustang by David Lindsay, owner of Cavalier Aircraft, in response to the United States Air Force PAVE COIN program, but Cavalier did not have the manufacturing abilities to mass-produce the Enforcer, so the program was sold to Piper by Lindsay in 1970.