Aviation Partners also has patented a development known as spiroids. Company chairman Joe Clark’s own Falcon 50 is expected to be used for any future trials with the spiroids, which resemble extended wingtips rolled in-board to form a loop. They are said to have yielded a 10-percent performance improvement during trials with a GII in 2001.
Dick Friel, vice president of marketing, said that spiroids remain “on the table” as a potential additional product that reportedly could be considered for aircraft as large as the Boeing 777. He acknowledged the potential application but cautioned that the possible development is by no means confirmed.