Tupolev

Why the tail-mounted engine configuration disappeared from civil aviation and will not return
From the Tu-154 to Boeing: how the evolution of technology made rear-mounted engines an obsolete solution

Tu-214 Can Possibly Be Converted for a Two-Pilot Crew: Kazan Aviation Plant Needs Orders
A two-pilot cabin has already been introduced on the Tu-204

Russian Tu-214 Airliner to Get Cargo, Short, and Two-Crew Versions
The aircraft is independent of component supplies from friendly countries and sanctions

Technologies of the Future: Tupolev Engineers Patent Hypersonic Aircraft with Cryogenic Fuel
Cryogenic fuel will be used to cool Tupolev's hypersonic aircraft