Tu-334 is a Russian regional jet aircraft, developed in the 90s to replace the outdated Soviet Tu-134 and Yak-42 airliners. For several reasons, the serial production of the aircraft was not organized – the project was frozen.
Work on the Tu-334 began back in the late 1980s, but development and production were slow due to financial problems.
In the late 1980s, to replace the outdated regional aircraft, it was decided to begin developing a new generation aircraft. Initially, it was planned to launch production at two plants – in Russia at KAPO named after S. P. Gorbunov and in Ukraine at the Kyiv plant, but subsequently, it was decided to produce it only in Russia.
The prototype made its first flight in 1999 under the command of A.N. Soldatenkova. Two flight specimens were made, which, subsequently, were repeatedly exhibited at various air shows. In 2003, the Tu-334-100 baseboard was introduced as a model for mass production. However, by 2007 5 gliders were made (2 of which were intended for static tests).
December 30, 2003, the aircraft received a certificate of type ST231-Tu-334-100. In 2005, a series of tests were conducted to expand the expected operating conditions.
In 2005, the Government of the Russian Federation approved a decree on mass production at KAPO Gorbunova. However, the decision was not implemented – the program was not included in the Federal Target Program. The project was frozen, losing a state tender for a regional airliner to another aircraft – SSJ 100.
The aerodynamic design is a low wing with a rear-engine, swept wing, and T-tail. Supercritical profiles and winglets form the wing. The design of the aircraft is widely used in modern composite materials and alloys.
The aircraft and, first of all, the cockpit is unified by Tu-204/214 family aircraft. The fuselage also has the same cross-section as the Tu-204 but has a shorter length.
Tricycle landing gear with bow stance. An electric brake system is engaged with its automatic switching to the forced stop mode of the aircraft during interrupted take-off.
The luggage compartment consists of two cargo compartments – the front 10 m³ and the rear 6.2 m³. In the future, it was planned to equip the aircraft with manufactured ramp doors.
Power plant – two turbofan engines D-436T1, made according to the three-shaft scheme. Also, in the tail of the APU installed.
- Tu-334-100 – the main version with D-436T1 engines, with a passenger capacity of 102 people, a flight range of 3150 km, with a wing area of 83.2 square meters;
- Tu-334-120 – modification of the Tu-334-100, for western engines of the BR710-48 type;
- Tu-334-100D – an option with an elongated fuselage, a wing of increased scope and area, with D-436T2 engines, an increased flight range exceeding 4000 km;
- Tu-334-120D – version of Tu-334-100D – with western engines BR715-56;
- Tu-334-200 – an option with an elongated fuselage, a wing of an increased area, with D-436T2 engines, passenger capacity increased to 126 people, and a flight range of more than 4000 km;
- Tu-334-220 – a variant of Tu-334-200 with western engines of the BR715-56 type;
- Tu-334-100С, Tu-334-220С – cargo variants of the corresponding passenger modifications.
- Type Regional Passenger Aircraft
- Power plant two turbofan engines D-436T1 for 7500 kg each
- Maximum number of passengers 102 people
- Practical ceiling 11 100 m
- Range 4 100 km
- Maximum take-off weight 47.9 t
- Cruising speed 820 km / h
- Wingspan 29.77 m
- The wing area is 83 square meters. m
- Length 31.26 m
- Height 9.38 m