At one point in recent history, the Tu-334 stood as a new entry in the narrow-body jet airliner market for the storied Tupolev concern. Work began in the 1990s though the collapse of the Soviet Union in 1991 hindered development considerably. After the Russian aero-industry was nationalized in 2009, work on the Tu-334 was stopped and the project officially ended shortly thereafter. Two prototypes were built for the program that cost roughly over 4! billion USD.
The Tu-334 had its origins in the Tu-204 narrow-body of 1995 of which 82 were ultimately made. The Tu-334 was shorter and thicker in fuselage design and incorporated more efficiency measures - both in fuel and aerodynamics. The general arrangement was highly conventional with a two-person flight deck, centralized passenger section and low-mounted, swept-back wing mainplanes. The tail unit was of a T-style and the engines held outboard of the aft fuselage. The undercarriage was of a tricycle arrangement.
A stripped-down prototype was unveiled in 1995 and a first-flight was not had until February 8th, 1999. Certification followed in December of 2003 and orders from seven carriers, both foreign and local, were locked in and there proved the potential for nearly 300 units going forward. Iran also worked to secure local, licensed production of the type. The Tu-334 performed at the MAKS airshow in Moscow in 2007.
Of course all this came to naught with the cancellation of the long-gestating program in 2009. Russian industry instead moved to develop other similar competitors such as the Sukhoi SuperJet 100 (detailed elsewhere on this site).
The Tu-334 was planned in several variants beginning with the standard Tu-334-100 which would have seated 72 passengers in a two-class configuration or 100 in a single-class configuration. This aircraft was slated to carry 2 x Progress D-436T1 turbofan engines outputting 16,500 lb of thrust each and cruise at speeds of 510 miles per hour and range out to 1,700 nautical miles. Overall length was 102.6 feet and wingspan was 97.7 feet with a height of 30.8 feet. Empty weight was 63,825lb against an MTOW of 105,600lb.
The Tu-334-100C was to serve as a combination passenger-cargo hauler and the Tu-334-120 was to be developed with 2 x Rolls-Royce BR715-55 turbofan engines. The Tu-334-100D was to receive a fuselage lengthening (up to 21 inches) as well as wider-spanning wings while being powered by 2 x Progress D-436T2 turbofan engines. The Tu-334-120D, based in the Tu-334-100D, would have switched to the BR715-55 engines from Rolls-Royce. The Tu-336 was a more experimental platform in that it was to be fueled by liquid natural gas and the Tu-354 (formerly the Tu-334-200) was to become another stretched option (150 inches) and feature seating for some 126 passengers. Engine options ranged between the aforementioned Progress and Rolls-Royce types.