The Windecker YE-5A was an experimental aircraft evaluated by the U.S. Air Force.

It was an all-composite construction aircraft, based on the commercial single-engine, low-wing Windecker Eagle.

The YE-5A, delivered in 1973, was used in tests relating to the radar detectability (commonly known as 'stealth') of composite aircraft.

This aircraft is disassembled and in storage in the United States Army Aviation Museum at Fort Novosel, Alabama.

This aircraft was code-named CADDO and tested at Aberdeen Proving Ground.