TU-144LL (LL is a Russian abbreviation for Flying Laboratory, Russian: Letayuschaya Laboratoriya, Летающая Лаборатория)
IBP Aerospace, NASA, Rockwell and Boeing used Tu-144LL as a testbed for its High Speed Commercial Research program. In 1995, Tu-144D №77114 (with only 82 hours and 40 minutes of flight time) was taken out of storage and after extensive modification at a cost of US$350 million, designated the Tu-144LL. The aircraft made a total of 27 flights during 1996 and 1997.
Music - Waltz by Eugen Doga (http://en.wikipedia.org/wiki/Eugen_Doga),
soundtrack from the film "My Affectionate and Tender Beast" (http://en.wikipedia.org/wiki/A_Hunting_Accident)