What is Tupolev Tu-155?
{|{{Infobox Aircraft Begin |name = Tupolev Tu-155 |image = File:CCCP-85035 Tupolev Tu.155 (7286104458).jpg |caption = <center>Tupolev Tu-155</center> }}{{Infobox Aircraft Type |type = Experimental Alternative fuel testbed |national origin = [[Soviet Union|USSR]] |manufacturer = [[Tupolev]] |first flight = 15 April 1988 |introduced = |produced = |status = Retired |primary user = [[Aeroflot]] (former) |more users = [[Soviet Air Force]] |number built = 1 |unit cost = |developed from = [[Tupolev Tu-154]] |variants with their own articles= }} |} '''Tupolev Tu-155''' (Russian: Туполев Ту-155) was alternative fuel testbed and an experimental aircraft in the world operating with liquid hydrogen. [[Category:Soviet & Russian aircraft]] {{transport-stub}}