British Airways ethnic liveries was used on Concorde only. By 1999, BA had repainted around 170 aircraft in its new colours but then Chief Executive, Bob Ayling, announced a review of this process. The aircraft already repainted would keep the new designs, but the remainder of the fleet (still showing the pre-1997 union flag design) would receive a variant of Concorde's Union Flag design. The announcement was timed to divert some attention from Virgin's relaunch. A single 747-400 leased from British Airways to Qantas in 2000, registered as VH-NLH whilst operating in Australia, wore a hybrid livery complete with the Denmark "Wings" tail design.
Surfboard fin stabiliser tail fin, two side fins, and a destabiliser fin in the centre, and anterior to, the side fins, called a 'dorsal fin'. The initial test, performed on a 9'6" Tolhurst Tuflite, with a retro-fitted slot for the dorsal fin, was extremely successful making the board feel at least 50% looser. After continuous development, the Diamond Quad has seen the tail fin become smaller and the side fins become bigger. The main drive in the Diamond Quad now comes from the side fins. The dorsal fin is small, 3.75" deep and usually somewhere between 600mm to 680mm forward of the