The
Tupolev Tu-95 (Russian:
Туполев Ту–95; NATO reporting name:
Bear) is a large, four-engine
turboprop-powered strategic bomber and
missile platform. First flown in 1952, the
Tu-95 entered service with the Soviet Union
in 1956 and is expected to serve the Russian
Air Force until at least 2040. A naval
development of the bomber is designated
Tu-142.
The aircraft has four Kuznetsov NK-12
engines, developed by the Kuznetsov Design
Bureau with participation of Ferdinand
Brandner and other captured German
engineers, each driving contra-rotating
propellers. An airliner variant Tu-114 holds
the record as the world's fastest
propeller-driven aircraft. Some experimental
aircraft were designed for theoretically
higher speeds, but none attained or
registered them. It also remains the only
turboprop-powered strategic bomber in
operational use. Its distinctively
swept-back wings are at 35°, a very sharp
angle by the standards of propeller-driven
aircraft, and justified by its operating
speeds and altitudes. Its blades, which
rotate faster than the speed of sound,
according to one media source, make it
arguably the noisiest military aircraft on
earth, with only the experimental 1950s era
Republic XF-84H "Thunderscreech" turboprop
powered American fighter design as a likely
rival.
Design and development
The design bureau led by Andrei Tupolev
designed the Soviet Union's first
intercontinental bomber, the 1949 Tu-85, a
scaled up version of the Tu-4, a Boeing B-29
Superfortress copy. The Tu-4 was deemed to
be inadequate against the new generation of
American all-weather interceptors.
A new requirement was issued to both
Tupolev and Myasishchev design bureaus in
1950: the proposed bomber had to have an
un-refueled range of 8000 km (4,970 mi) —
far enough to threaten key targets in the
United States. Other goals included the
ability to carry an 11,000 kg (11 ton) load
over the target.
The big problem for Tupolev was the
engine choice: the Tu-4 showed that piston
engines were not powerful enough to fulfill
that role, while the fuel-hungry AM-3 jet
engines of the proposed T-4 intercontinental
jet bomber did not provide adequate range.
Turboprops offered more power than piston
engines and better range than jets, with a
top speed in between.
Tupolev's proposal was selected and Tu-95
development was officially approved by the
government on 11 July 1951. It featured four
Kuznetsov coupled turboprops fitted with
eight-bladed contra-rotating propellers,
producing a nominal 8,948 kW (12,000 eshp)
power rating. Unlike the advanced engine
design, the fuselage was conventional: a
mid-wing cantilever monoplane with 35
degrees of sweep, an angle which ensured the
main wing spar passed through the fuselage
in front of the bomb bay. Retractable
tricycle landing gear was fitted, with all
three gear strut units retracting rearwards,
with the main gear units retracting
rearwards into extensions of the inner
engine nacelles.
The Tu-95/I, with 2TV-2F engines, first
flew 11 November 1952 with test pilot Alexey
Perelet at the controls. After six months of
test flights this aircraft suffered a
propeller gearbox failure and crashed,
killing Perelet. The second aircraft,
Tu-95/II featured four of the 12,000 ehp
Kuznetsov NK-12 turboprops which proved more
reliable than the coupled 2TV-2F. After a
successful flight testing phase, series
production of the Tu-95 started in January
1956.
For a long time, the Tu-95 was known to
U.S./NATO intelligence as the
Tu-20.
While this was the original Soviet Air Force
designation for the aircraft, by the time it
was being supplied to operational units it
was already better known under the
Tu-95
designation used internally by Tupolev, and
the Tu-20 designation quickly fell out of
use in the USSR. Since the Tu-20 designation
was used on many documents acquired by U.S.
intelligence agents, the name continued to
be used outside the Soviet Union.
Initially the United States Department of
Defense evaluated the Tu-95 as having a
maximum speed of 644 km/h (400 mph) with a
range of 12,500 km (7,800 mi). These numbers
had to be revised upward numerous times.
Like its American counterpart, the Boeing
B-52 Stratofortress, the Tu-95 has continued
to operate in the Russian Air Force while
several subsequent iterations of bomber
design have come and gone. Part of the
reason for this longevity was its
suitability, like the B-52, for modification
to different missions. Whereas the Tu-95 was
originally intended to drop free-falling
nuclear weapons, it was subsequently
modified to perform a wide range of roles,
such as the deployment of cruise missiles,
maritime patrol (Tu-142), and even civilian
airliner (Tu-114). An AWACS platform
(Tu-126) was developed from the Tu-114. An
icon of the Cold War, the Tu-95 has served
not only as a weapons platform but as a
symbol of Soviet and later Russian national
prestige.
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Operational history
Cold War icon
The Tu-95RT variant in particular was a
veritable icon of the Cold War as it
performed a vital maritime surveillance and
targeting mission for other aircraft,
surface ships and submarines. It was
identifiable by a large bulge under the
fuselage, which housed a radar antenna that
was used to search for and target surface
ships.
The Tu-95 carried and dropped the AN602
Tsar Bomba, the largest and most powerful
nuclear weapon ever detonated (deliberately
de-rated from 100 to 50 megatons), in 1961.
Present and future status
In 1992, newly independent Kazakhstan
began returning the Tu-95 aircraft of the
79th Heavy Bomber Aviation Division at Dolon
air base to the Russian Federation. The
bombers joined those already at the Far
Eastern Ukrainka air base.
All Tu-95s now in Russian service are the
Tu-95MS variant, built in the 1980s and
1990s. On August 18, 2007, then-President
Vladimir Putin announced that Tu-95 patrols
would resume, 15 years after they had ended.
NATO fighters are often sent to intercept
Tu-95s as they perform their missions along
the periphery of NATO airspace, often in
close proximity to each other.
Russian Tu-95s reportedly took part in a
naval exercise off the coasts of France and
Spain in January 2008, alongside Tu-22M3
Backfire strategic bombers and airborne
early-warning aircraft.
During the Russian Stability 2008
military exercise in October 2008, Tu-95MS
aircraft fired live air-launched cruise
missiles for the first time since 1984. The
long range of the Raduga Kh-55 cruise
missile means Tu-95MS Bears can once again
serve as a strategic weapons system.
On 8 July 2011, two Russian Tu-95
turboprop bombers flew an 11-hour flight
over the northeast Pacific Ocean and the Sea
of Japan. Japan sent two fighter pairs of
F-15 and F-2 aircraft to intercept and
escort the Russian bombers over portions of
the flight. On 8 September 2011, two Russian
Tu-95 bombers flew near Japanese airspace,
and Japan Air Self Defense Force fighters
were sent to intercept them.
During 2012, according to U.S. military
sources, two different incidents took place
involving Russian Tu-95 Bear-H bombers
flying near United States airspace. The
first occurred in mid-June during Russian
military exercises near Alaska, prompting
NORAD to send U.S. F-15s and Canadian CF-18
fighters to intercept and escort the two
Russian bombers from the area. The second
occurred on July 4 when Tu-95 were
intercepted by U.S. aircraft off the west
coast of the United States, and U.S.
fighters again escorted the Russian bombers
from the area.
In February 2013, two Russian Tu-95
Bear-H bombers capable of carrying nuclear
weapons were intercepted by US jets while
circling the western Pacific island of Guam.
The incident is considered highly unusual
because Russian strategic bombers have not
been known to conduct operations in vicinity
of Guam from bases in the Russian Far East.
In April 2013, two Russian Tu-95 Bear-H
bombers were detected flying into the Alaska
Air Defense Identification Zone ADIZ. Two US
Lockheed Martin F-22 Raptor intercepted and
visually identified the bombers on April
28th.
In July 2013, two Russian Tu-95 Bear H
bombers capable of carrying nuclear weapons,
were detected flying north near the Korean
peninsula and Japan’s northern Hokkaido
Island. Three Japanese jets and a
South-Korean jet intercepted and escorted
the Russian bombers.
In a near future, the strategic bombers
Tu-160, Tu-95
and Tu-22M3 will receive their orders and
instructions according to the principle of
telegraph or SMS.
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Variants and derivatives
- Tu-95/1: The first prototype
powered by Kuznetsov 2TV-2F coupled
turboprop engines.
- Tu-95/2: The second prototype
powered by Kuznetsov NK-12 turboprops.
- Tu-95/Tu-95M: Basic variant
of the long-range strategic bomber and
the only model of the aircraft never
fitted with a nose refuelling probe.
Known to NATO as the Bear-A.
- Tu-95K: Experimental version
for air-dropping a MiG-19 SM-20 jet
aircraft.
- Tu-95K22: Conversions of the
older Bear bombers, reconfigured to
carry the Raduga Kh-22 missile and
incorporating modern avionics. Known to
NATO as the Bear-G.
- Tu-95K/Tu-95KD: Designed to
carry the Raduga Kh-20 air-to-surface
missile. The Tu-95KD aircraft were the
first to be outfitted with nose probes.
Known to NATO as the Bear-B.
- Tu-95KM:Modified and upgraded
versions of the Tu-95K, most notable for
their enhanced reconnaissance systems.
These were in turn converted into the
Bear G configuration. Known to NATO as
the Bear-C.
- Tu-95M-55: Missile carrier.
- Tu-95MR: Bear A modified for
photo-reconnaissance and produced for
Naval Aviation. Known to NATO as the
Bear-E.
- Tu-95MS/Tu-95MS6/Tu-95MS16:–
Completely new cruise missile carrier
platform based on the Tu-142 airframe.
This variant became the launch platform
of the Raduga Kh-55 cruise missile.
Known to NATO as the Bear-H and was
referred to by the U.S. military as a
Tu-142 for some time in the 1980s before
its true designation became known.
- Tu-95N: Experimental version
for air-dropping an RS ramjet powered
aircraft.
- Tu-95RTs: Razvedchik
Tseleukazatel: Variant of the basic
Bear A configuration, redesigned for
maritime reconnaissance and targeting as
well as electronic intelligence for
service in the Soviet Naval Aviation.
Known to NATO as the Bear-D.
- Tu-95U Uchebnyy:
Trainer: Training variant, modified from
surviving Bear As but now all have been
retired. Known to NATO as the Bear-T.
- Tu-95V Special carrier
aircraft to test-drop the largest
thermonuclear weapon ever designed, the
Tsar Bomba.
- Tu-96: long-range
intercontinental high-altitude strategic
bomber prototype, a high-altitude
version of the Tupolev Tu-95 aircraft
with high-altitude augmented turboprop
TV-16 engines and with a new,enlarged
area wing. Plant tests of the aircraft
were performed with non-high altitude
TV-12 engines in 1955–1956.
- Tu-114: Airliner derivative
of Tu-95.
- Tu-116: Tu-95 fitted with
passenger cabins as a stop-gap while the
Tu-114 was being developed. Only two
converted.
- Tu-95LAL: Experimental
nuclear-powered aircraft project.
- Tu-126: AEW&C derivative of
Tu-114, itself derived from the Tu-95.
- Tu-142: Maritime
reconnaissance/anti-submarine warfare
derivative of Tu-95. Known to NATO as
the Bear-F.
Several other modification of the basic
Tu-95/Tu-142 airframe have existed, but
these were largely unrecognized by Western
intelligence or else never reached
operational status within the Soviet
military. One of these modified Bears, known
as the Tu-95V, was used to drop the Tsar
Bomba.
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Specifications (Tu-95MS)
General characteristics
- Crew: 6–7; pilot, co pilot,
flight engineer, communications system
operator, navigator, tail gunner plus
sometimes another navigator.
- Length: 46.2 m (151 ft 6 in)
- Wingspan: 50.10 m (164 ft 5
in)
- Height: 12.12 m (39 ft 9 in)
- Wing area: 310 m² (3,330 ft²)
- Empty weight: 90,000 kg
(198,000 lb)
- Loaded weight: 171,000 kg
(376,200 lb)
- Max. takeoff weight:
188,000 kg (414,500 lb)
- Powerplant: 4 × Kuznetsov
NK-12M turboprops, 11,000 kW (14,800
shp) each
Performance
- Maximum speed: 920 km/h (510
knots, 575 mph)
- Range: 15,000 km (8,100 nmi,
9,400 mi) unrefueled
- Service ceiling: 13,716 m
(45,000 ft)
- Rate of climb: 10 m/s
(2,000 ft/min)
- Wing loading: 606 kg/m²
(124 lb/ft²)
- Power/mass: 235 W/kg
(0.143 hp/lb)
Armament
- Radar-controlled Guns: 1 or 2
× 23 mm AM-23 autocannon in tail turret.
- Missiles: Up to 15,000 kg
(33,000 lb), including the Raduga Kh-20,
Kh-22, Kh-26, and Kh-55/101/102
Air-to-surface missiles.
Source: Wikipedia
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Photo: Unknown
May 1992 Barksdale AFB Shreveport,
Louisiana |
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