Tags: Aircraft.
The Burnelli GX-3 also known as Uppercu-Burnelli UB-SS. was an American twin-engined mid-wing experimental aircraft which first flew in 1929. Work commenced on this aircraft during development of the Burnelli CB-16. Soon after Daniel Guggenheim announced the Guggenheim Safe Aircraft Competition. Many manufacturers brought aircraft to this competition. The GX-3 was built in New Jersey but did not arrive at the competition in time to participate.