Editing Tupolev Tu-144 (section)

===Later use===
[[File:Russian Tu-144LL SST Flying Laboratory Takeoff at Zhukovsky Air Development Center.jpg|thumb|The Tu-144LL used by [[NASA]] to carry out research for the [[High Speed Civil Transport]] in 1997.]]
[[File:Tu-144LL in flight.jpg|thumb|Tu-144LL in flight in 1998.]]
[[File:МАКС-2007-ЗВГ-002.jpg|thumb|Tu-144 with distinctive [[Droop nose (aeronautics)|droop nose]] on display at the [[MAKS Airshow]] in 2007.]]
The Tu-144 programme was cancelled by a Soviet government decree on 1 July 1983 that also provided for future use of the remaining Tu-144 aircraft as airborne laboratories. In 1985, Tu-144D were used to train pilots for the Soviet [[Buran (spacecraft)|Buran]] space shuttle. In 1986–1988 Tu-144D No. 77114, built in 1981, was used for medical and biological research of high-altitude atmosphere radiological conditions. Further research was planned but not completed, due to lack of funding.<ref name="bliznyuk2000" />