HP Aircraft HP-24 Tetra
The Tetra 15 is a carbon-fiber 15meter (with plans to have 18meter extensions) sailplane that Brad Hill and Bob Kuykendall built. It is registered as a homebuilt experimental glider, built by Brad Hill using the molds from the HP-24 project.
First flying in Jan 2012 in Arlington, Washington, the kit form is from HP Aircraft and called the HP-24. Bob Kuykendall started in April 2001 posting updates on the HP-24 project.
Brad accumulated roughly 400 hours in the Tetra 15 in two seasons.Performance is matched with other gliders where their factory claims 42:1.
This was the only kit-built composite glider being produced in the United States in 2014.