short "hops" that were  not considered true flights. The only completed XF5U-1 proved to be so structurally solid that it had to be destroyed by a wrecking ball . [ Edited by Hauksbee, 30 November 2011 - 02:55:18 PM. Website:http://www.robertgkelley.com Blog: http://kelleythennow.blogspot.com [latest 3D work] In theory, there is no difference between theory