Tu-154 | |
---|---|
Slovak Air Force Tupolev Tu-154M | |
Role | Airliner |
National origin | Soviet Union/ Russia |
Manufacturer | Tupolev |
Designer | Tupolev Design Bureau |
First flight | 4 October 1968 |
Introduction | 7 February 1972 (Aeroflot) |
Status | In service |
Primary users | UTair Yakutia Airlines Alrosa Mirny Air Enterprise Tajik Air |
Produced | 1968–2006[1] |
Number built | 1025 |
Unit cost | $45 million |
Variants | Tupolev Tu-155 |
The Tupolev Tu-154 (Russian: Ту-154; NATO reporting name: Careless) is a three-engine medium-range narrow-body airliner designed in the mid 1960s and manufactured by Tupolev. As the mainstay 'workhorse' of Soviet and (subsequently) Russian airlines for several decades, it serviced over a sixth of the world's landmass and carried half of all passengers flown by Aeroflot and its subsidiaries (137.5 million/year or 243.8 billion passenger kilometers in 1990). Having been exported and operated by 17 non-Russian airlines and a number of air forces, it remained the standard domestic route airliner of Russia and former Soviet states until the mid 2000s.
With a cruising speed of 975 kilometres per hour (606 mph), the Tu-154 is one of the fastest civilian aircraft in operation and has a range of 5,280 kilometres (3,280 mi). Capable of operating from unpaved and gravel airfields, it was widely used in extreme Arctic conditions of Russia's northern and eastern regions where other airliners were unable to operate and where service facilities were very basic. With a service life of 45,000 hours (18,000 cycles) but capable of 80,000 hours with upgrades, it is expected to continue operations until 2016, although noise regulations have seen services to western Europe and other areas restricted. In January 2010, Russian flag carrier Aeroflot announced the retirement of its Tu-154 fleet after 40 years service with the last scheduled flight being Aeroflot Flight 736 from Ekaterinburg to Moscow on 31 December 2009.[2]
Since 1968 there have been 39 fatal incidents involving the Tu-154, most of which were caused either by factors unrelated to the aircraft or by its extensive use in demanding conditions.[3][4]
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The Tu-154 was developed to meet Aeroflot's requirement to replace the jet-powered Tu-104, the Antonov An-10 'Ukraine' and the Ilyushin Il-18 turboprops. The requirements called for either a payload capacity of 16–18 tonnes (35,000–40,000 lb) with a range of 2,850–4,000 kilometres (1,770–2,500 mi) while cruising at a speed of 900 km/h (560 mph), or a payload of 5.8 tonnes (13,000 lb) with a range of 5,800–7,000 kilometres (3,600–4,300 mi) while cruising at 850 km/h (530 mph). A take-off distance of 2,600 metres (8,500 ft) at maximum take-off weight was also stipulated as a requirement. Conceptually similar to the British Hawker Siddeley Trident, which first flew in 1962, and the Boeing 727, which first flew in 1963, the medium-range Tu-154 would be marketed by Tupolev at the same time as Ilyushin was marketing the long-range Ilyushin Il-62. The Soviet Ministry of Aircraft Industry chose the Tu-154 as it incorporated the latest in Soviet aircraft design and best met Aeroflot's anticipated requirements for the 1970s and 1980s.[5]
The first project chief was Sergey Yeger but in 1964, Dmitryi S. Markov assumed that position. In 1975 he turned it over to Aleksandr S. Shengardt.[6]
The Tu-154 first flew on 4 October 1968. The first deliveries to Aeroflot were in 1970 with freight (mail) services beginning in May 1971 and passenger services in February 1972. There was still limited production of the 154M model as of January 2009, despite previous announcements of the end of production in 2006.[7] 1025 Tu-154s have been built, 214 of which are still in service as of 14 December 2009.[8]
The Tu-154 is powered by three rear-mounted low-bypass turbofan engines arranged similarly to those of the Boeing 727, but it is slightly larger than its American counterpart. Both the 727 and the Tu-154 use an S-duct for the middle (number 2) engine. The original model had Kuznetsov NK-8-2, while the Tu-154M has Soloviev D-30KU-154 engines. All Tu-154 aircraft models have a higher thrust-to-weight ratio than that of the 727 – this gives them superior performance, although at the expense of poorer fuel efficiency, which became an important factor in later decades as fuel costs grew.
The cabin of the Tu-154, although of the same six-abreast seating layout, gives the impression of an oval interior, with a lower ceiling than is common on Boeing and Airbus airliners. The passenger cabin accommodates 128 passengers in two-class layout and 164 passengers in single-class layout, and up to 180 passengers in high-density layout. The layout can be modified to what is called a winter version where some seats are taken out and a wardrobe is installed for passenger coats. The passenger doors are also smaller than on its Boeing and Airbus counterparts. Furthermore, luggage space in the overhead compartments is very limited.
Like the Tupolev Tu-134, the Tu-154 has a wing swept back at 35° at the quarter-chord line. The British Hawker Siddeley Trident has the same sweepback angle, while the Boeing 727 has a slightly smaller sweepback angle of 32°. The wing also has anhedral (downward sweep) which is distinguishing feature of Russian low-wing airliners designed during this era. Most Western low-wing airliners such as the contemporary Boeing 727 have Dihedral (upward sweep). The anhedral means that Russian airliners have poor lateral stability compared to Western ones, but also have weaker dutch roll tendencies, eliminating the need for a yaw damper.
Like many other Soviet-built airliners, the Tu-154 has an oversized landing gear enabling it to land on unpaved runways, once common in rural areas of the Soviet Union. The aircraft has two six-wheel main bogies fitted with large low-pressure tires that retract into pods extending from the trailing edges of the wings (a common Tupolev feature), plus a two-wheel nose gear unit. Soft oleo struts (shock absorbers) provide a much smoother ride on bumpy airfields than most airliners, which only very rarely operate on such poor surfaces.
The original requirement was to have a three-person flight crew – captain, first officer and flight engineer – as opposed to 4/5-person crew on other Soviet airliners. A fourth crew member, a navigator, is usually also present in the former Soviet Union, due to union rules. Navigators are no longer trained and this profession will become obsolete with the retirement of older Soviet era planes.
The plane's avionics suite, for the first time in the Soviet Union, is built to American airworthiness standards. The latest variant (Tu-154M-100, introduced 1998) includes an NVU-B3 Doppler navigation system, a triple autopilot, which provides an automatic ILS approach according to ICAO category II weather minima, an autothrottle, a Doppler drift and speed measure system (DISS), "Kurs-MP" radio navigation suite and others. Modern upgrades normally include a TCAS, GPS and other modern systems, mostly American or EU-made.
Early versions of the Tu-154 cannot be modified to meet the current Stage III noise regulations and are banned from flying where those regulations are in force, such as Europe. The Tu-154M may use hush kits to meet Stage III and theoretically Stage IV. However current European Union regulations forbid the use of hush kits to meet Stage IV. The Tu-154M would need to be re-engined to meet Stage IV within the EU, an extensive and potentially expensive upgrade.
Many variants of this airliner have been built. Like its western counterpart, the 727, many of the Tu-154s in service have been hush-kitted, and some converted to freighters.
As of 24 November 2011 108 Tupolev Tu-154 aircraft (all variants) remained in airline service.[19][20] As of 20 February 2011 in Iran, all the remaining numbers of this aircraft were grounded after two recent incidents.[21][22] Major operators include:
Airline | In Service |
---|---|
Air Koryo | 4 |
Alrosa Mirny Air Enterprise | 5 |
Aria Air | 3 |
Moscow Airlines | 2 |
Aviaenergo | 3 |
Belavia | 3 |
Eram Air | 3 (grounded) |
Gazpromavia | 3 |
KMV | 9 |
Kogalymavia | 5 |
Kyrgyzstan Airlines | 2 |
South East Airlines | 5 |
Taban Air | 1 (grounded) |
Tajik Air | 6 |
Tatarstan Airlines | 5 |
UTair Aviation | 19 |
Vladivostok Air | 3 |
Yakutia Airlines | 6 |
Past and present operators:
Abakan Air Enterprise, Aerokuznetsk, Aeroservice Kazakhstan, Aerotrans, Aerovolga, Air Georgia, Air Great Wall, Air Savari, AJT, Amur Avia, Asian Star, Aviaprad, Aviaprima, AVL Arkhangel, Baltic Express, Barnaul Air, Bratsk Air, Chelal, Chernomoravia, China Glory, China Xinjiang, Chita Avia, Diamond Sakha, East Line, Elk Estonian, Georgia Air Prague, Gomel UAD, Imair, Iron Dragonfly, Khabarovsk Aero, Latpass, Macedonia Airservice, Murmansk Air, Nizhny Novgorod Air, Orbi Georgian, Sakha Avia, Surgut Avia, Tomsk Air, Transeuropean, Turanair, Tyumen Airlines, Ulyanovsk Airlines, Vitair.
As of January 2011, since 1970 there have been 110 serious incidents involving the Tu-154,[25] and 69 hull losses, 30 of which did not involve fatalities.[26] Of the fatal incidents, six resulted from terrorist or military action (two other war-time losses were non fatal) including an accidental missile shoot-down by Ukraine, several from poor runway conditions in winter (including one in which the airplane struck snow plows on the runway), cargo overloading in the lapse of post-Soviet federal safety standards, and mid-air collisions due to faulty air traffic control. Other incidents resulted from mechanical problems (two cases prior to 2001), running out of fuel on unscheduled routes, pilot errors (including flight training for new crews), and cargo fires. The Tu-154 is described as having an average (or better than expected) safety record considering its length of service and heavy use in demanding conditions where other airliners are unable to operate.[4] On January 2, 2011, Russia's Federal Transport Oversight Agency advised airlines to stop using remaining examples of the Tu-154 (B variant) until the fatal fire incident in Surgut had been investigated.[27] Its operation in Iran, which is subject to an aircraft parts embargo, ceased in February 2011 due to a number of incidents involving the type (almost 9% of all Tu-154 losses have occurred in Iran) [28] In 2010 there were two fatal losses of the Tu-154 due to pilor error and/or weather conditions (a Polish presidential jet attempting to land at an airfield in heavy fog and a Russian-registered plane that suffered engine stall after a crew member inactivated a fuel transfer pump). Following these accidents, in March 2011 the Russian Federal Bureau of Aviation recommended a withdrawal of remaining Tu-154M from service.[29] In December 2010, Uzbekistan Airways also declared that it will cease to operate Tu-154s from 2011.[30]
date (dd.mm.yyyy) |
Tail number | Location | Fatalities | Brief description |
---|---|---|---|---|
19.02.1973 | CCCP-85023 | Prague | 66/100 | Landed 470 m short of the runway |
03.1973 | n.d. | near Kiev | 0/n.d. | Crashed |
07.05.1973 | CCCP-85030 | Vnukovo | 0/6 | Crashed during training flight |
10.07.1974 | SU-AXB | Cairo | 6/6 | Crashed during training flight |
30.09.1975 | HA-LCI | Beirut | 60/60 | Crashed in the sea on final approach in clear weather, allegedly shot down by one or two air to air missiles fired by either IDF or SDF forces. |
01.06.1976 | CCCP-85102 | Malabo | 46/46 | Crashed into a mountain on final approach |
1976 | CCCP-85020 | Kiev | 0/n.d. | Rough landing, written off. Now in museum |
02.12.1977 | LZ-BTN | Benghazi | 59/165 | Unable to land in dense fog the plane ran out of fuel searching another airfield and crash-landed |
23.03.1978 | LZ-BTB | near Damascus | 4/4 | Crashed on final approach |
19.05.1978 | CCCP-85169 | Tver oblast | 4/134 | Fuel supply turned off due to flight engineer error, crash-landed in field |
18.02.1978 | CCCP-85087 | Novosibirsk | 0/n.d. | Fire onboard |
01.03.1980 | CCCP-85103 | Orenburg | 0/161 | Rough landing |
07.07.1980 | CCCP-85355 | Alma-Ata | 164/164 | Crashed at take-off |
07.08.1980 | YR-TPH | Mauritania | 1/168 | Ditched 300 m short of runway |
08.10.1980 | CCCP-85321 | Chita | 0/n.d. | Rough landing |
13.06.1981 | CCCP-85029 | Bratsk | 0/n.d. | Overran on landing, fuselage broke into two |
16.11.1981 | CCCP-85480 | Norilsk | 99/167 | Rough landing 470 m short of runway due to crew errors |
21.10.1981 | HA-LCF | Prague | 0/81 | Rough landing due to crew error |
11.10.1984 | CCCP-85243 | Omsk | 4+174/179 | Collided with maintenance vehicles on landing due to controller error |
23.12.1984 | CCCP-85338 | Krasnoyarsk | 110/110 | Engine fire and hydraulics fault |
10.07.1985 | CCCP-85311 | Uchkuduk | 200/200 | Overloaded plane stalled and crashed due to crew errors |
1986 | 7O-ACN | Aden | n.d. | Overran on landing, never repaired |
21.05.1986 | CCCP-85327 | Domodedovo | 0/175 | Deformation of fuselage due to crew errors during flight |
18.01.1988 | CCCP-85254 | Krasnovodsk | 11/143 | Rough landing, plane broke into two |
08.03.1988 | CCCP-85413 | Vetschyovo | 9/n.d. | Blown up by hijackers (Ovechkin family) |
24.09.1988 | CCCP-85479 | Aleppo | 0/168 | Broke into two on landing, was caught by wind shear |
24.09.1988 | CCCP-85617 | Norilsk | 0/n.d. | Rough landing, turned into training mock-up |
13.01.1989 | CCCP-85067 | Monrovia | 0/n.d. | Aborted take-off and runway overrun due to overloading |
09.02.1989 | YR-TPJ | Bucharest | 5/5 | Crashed at take-off due to engine failure |
20.10.1990 | CCCP-85268 | Kutaisi | 0/171 | Nosegear collapsed due to overloading |
17.11.1990 | CCCP-85664 | Czech republic | 0/6 | Fire onboard, the plane burned out after emergency landing |
23.05.1991 | CCCP-85097 | Leningrad | 2+13/178 | Rough landing, nosegear collapsed and plane broke into two |
14.09.1991 | CU-T1227 | Mexico City | 0/112 | Overran on landing |
05.06.1992 | LZ-BTD | Varna | 0/130 | Overran on landing in heavy rain |
18.06.1992 | RA-85282 | Bratsk | 1+0/0 | Burned out during refueling |
18.06.1992 | RA-85234 | Bratsk | 0/0 | Burned out in the same incident |
20.07.1992 | 4L-85222 | Tbilisi | 4+24/24 | Crashed at take-off due to overloading |
01.08.1992 | YA-TAP | Kabul | 0/0 | Destroyed in the airport by mortar fire |
05.09.1992 | UR-85269 | Kiev | 0/147 | Rough landing with left gear still retracted |
13.10.1992 | RA-85528 | Vladivostok | 0/67 | The plane was unable to take-off due to overloading |
05.12.1992 | EK-85105 | Erevan | 0/154 | Overran on landing |
19.01.1993 | UK-85533 | Delhi | 0/165 | Rough landing due to crew error |
08.02.1993 | EP-ITD | near Tehran | 2+131/131 | Mid-air collision with Su-22 |
22.09.1993 | 4L-85163 | Sukhumi | 108/132 | Shot down by missile |
23.09.1993 | 4L-85359 | Sukhumi | 0/0 | Damaged by shelling, never repaired |
25.12.1993 | RA-85296 | Grozny | 0/172 | Rough landing, nosegear collapsed. Destroyed by air strike in 1994 |
03.01.1994 | RA-85656 | Irkutsk | 1+125/125 | Engine fire at take-off, hydraulics failed |
06.06.1994 | B-2610 | Xian | 160/160 | Disintegrated in mid-air due to errors in auto-pilot settings |
21.01.1995 | UP-85455 | Karachi | 0/117 | The plane was unable to take-off due to overloading |
07.12.1995 | RA-85164 | near Khabarovsk | 98/98 | Asymmetrical fuel supply from wing tanks, the captain mistakenly increased the right heel and the plane crashed |
29.08.1996 | RA-85621 | Longyearbyen | 141/141 | Crashed in the mountain on final approach due to crew error |
13.09.1997 | 11+02 | Namibia | 24/24 | Mid-air collision with USAF C-141 |
15.12.1997 | EY-85281 | Sharja | 85/86 | Landed short of runway, crew error |
29.08.1998 | CU-T1264 | Quito | 10+70/91 | Aborted take-off, overran and caught fire |
24.02.1999 | B-2622 | Ruian | 61/61 | Crashed on final approach due to technical failure |
04.07.2000 | HA-LCR | Saloniki | 0/76 | Was unable to go around due to intense braking to avoid collision with another aircraft on runway |
03.07.2001 | RA-85845 | Irkutsk | 145/145 | Stalled and crashed on final approach due to crew errors |
04.10.2001 | RA-85693 | Black sea | 78/78 | Allegedly shot down by stray Ukrainian missile |
12.02.2002 | EP-MBS | Khorremabad | 119/119 | Crashed on final approach |
20.02.2002 | EP-LBX | Mashhad | 0/n.d. | Rough landing, sent to Vnukovo for repair where a nosegear collapsed |
01.07.2002 | RA-85816 | Germany | 2+69/69 | Mid-air collision with Boeing 757 due to controller error |
24.08.2004 | RA-85556 | Millerovo | 46/46 | Exploded in mid-air by suicide bomber |
22.08.2006 | RA-85185 | near Donetsk | 170/170 | Stalled and crashed due to attempt to fly over storm front at critical altitude |
01.09.2006 | EP-MCF | Mashhad | 29/147 | The tyre blew out on landing, the plane skidded off the runway and caught fire |
30.06.2008 | RA-85667 | St Petersburg | 0/112 | Engine fire at take-off, take off was aborted and the plane written off |
15.07.2009 | EP-CPG | near Qazvin | 168/168 | Engine fire and explosion, the plane lost control and crashed |
24.01.2010 | RA-85787 | Mashhad | 0/170 | Rough landing, the plane broke up and caught fire |
10.04.2010 | 101 | Smolensk | 96/96 | Crashed on final approach in thick fog on an airfield with no ILS. President Lech Kaczyński and other high ranking officials were onboard and died in the crash. |
07.09.2010 | RA-85684 | Izhma | 0/81 | Emergency landing at remote airfield after general electrical failure at 34,800 ft, overran the small runway and sustained minor damage with no injuries. In March 2011 it was flown back to Samara for structural inspection.[31] |
04.12.2010 | RA-85744 | Moscow | 2/170 | An emergency landing after two engines failed shortly after take-off; full of fuel. Overran the runway and broke up into three. The accident investigation revealed that a crew member had mistakenly switched off a fuel transfer pump thereby causing fuel-starvation and subsequent engine stall [32] |
01.01.2011 | RA-85588 | Surgut | 3/124 | Fire onboard and subsequent explosion while taxiing for take-off, all three engines running.[33] |
Measurement | Tu-154B-2 | Tu-154M |
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Cockpit crew | Three/Four | |
Seating capacity | 114–180 | |
Length | 48.0 metres (157 ft 6 in) | |
Wingspan | 37.55 metres (123 ft 2 in) | |
Wing area | 201.5 square metres (2,169 sq ft) | |
Height | 11.4 metres (37 ft 5 in) | |
Maximum take-off weight | 98,000 kilograms (220,000 lb) – 100,000 kilograms (220,000 lb) | 102,000 kilograms (220,000 lb) – 104,000 kilograms (230,000 lb) |
Empty weight | 50,700 kilograms (112,000 lb) | 55,300 kilograms (122,000 lb) |
Maximum speed | 950 km/h (510 kn) | |
Range fully loaded | 2,500 kilometres (1,600 mi) | 5,280 kilometres (3,280 mi) |
Range with max fuel | 3,900 kilometres (2,400 mi) | 6,600 kilometres (4,100 mi) |
Service ceiling | 12,100 metres (39,700 ft) | |
Engine (x 3) | Kuznetsov NK-8-2U | Soloviev D-30KU-154 |
Max. thrust (x 3) | 90 kN (20,000 lbf) each[34] | 103 kN (23,148 lbf) each[34] |
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