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57 posters

    Tu-95MS "Bear"

    George1
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    Post  George1 Thu Jul 06, 2017 1:54 am

    New Tu-95MS strike by Κh-101 cruise missiles against targets in Syria

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    T-47


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    Post  T-47 Sat Aug 05, 2017 5:42 pm

    I'd love to see at least a few Tu-95s are active to achieve 100 years of operational service!!!!!
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    Post  Svyatoslavich Sun Aug 06, 2017 1:28 am

    T-47 wrote:I'd love to see at least a few Tu-95s are active to achieve 100 years of operational service!!!!!
    Possible if you start counting by first flight of the design, back in the 50's. But it is still very far away if you start counting when the frames were produced, Tu-95MS are much newer than most people think, it is a deep modernization (including structural) of the original Tu-95, developed in the 70's and produced till the early 90's, so the oldest Tu-95 in service nowadays must be 40 years old (if there is any frame produced in the late 70's still flying), and the newest 25 years old.
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    Post  T-47 Sun Aug 06, 2017 3:55 pm

    Svyatoslavich wrote:
    Possible if you start counting by first flight of the design, back in the 50's. But it is still very far away if you start counting when the frames were produced, Tu-95MS are much newer than most people think, it is a deep modernization (including structural) of the original Tu-95, developed in the 70's and produced till the early 90's, so the oldest Tu-95 in service nowadays must be 40 years old (if there is any frame produced in the late 70's still flying), and the newest 25 years old.

    Yes I am aware of the that time frame. And I am counting it from first flight. Still it'll be an impressive achievement for aviation history.
    George1
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    Post  George1 Wed Sep 27, 2017 1:11 pm

    d_taddei2
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    Post  d_taddei2 Sun Nov 12, 2017 9:37 pm

    I just wanted to ask people's opinion on the rear mounted gun on the Tu-95 is worth having it now? Only use I can see is if it came across another enemy bomber which is highly unlikely.  I thought maybe best just to remove it to save weight and it removes 23mm ammo sitting at rear of aircraft.
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    Post  GarryB Mon Nov 13, 2017 5:05 am

    I just wanted to ask people's opinion on the rear mounted gun on the Tu-95 is worth having it now? Only use I can see is if it came across another enemy bomber which is highly unlikely.  I thought maybe best just to remove it to save weight and it removes 23mm ammo sitting at rear of aircraft.

    Already replied on the Tu-22M3 thread, but would add here that these guns are not for use against enemy bombers... the Bear and Backfire would never come close to western bombers.

    Chaff and flare and jammer rounds makes them interesting options and their high rate of fire would give them a small chance against incoming missiles, but not enough to make them worth putting on brand new aircraft.

    I doubt they would remove them from existing types... the guns themselves are compact and light and what would you replace that weight with anyway?

    On new aircraft they will likely be replaced with small interceptor missiles for self defence from missiles and aircraft.
    d_taddei2
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    Post  d_taddei2 Mon Nov 13, 2017 5:51 am

    GarryB wrote:

    I just wanted to ask people's opinion on the rear mounted gun on the Tu-95 is worth having it now? Only use I can see is if it came across another enemy bomber which is highly unlikely.  I thought maybe best just to remove it to save weight and it removes 23mm ammo sitting at rear of aircraft.

    Already replied on the Tu-22M3 thread, but would add here that these guns are not for use against enemy bombers... the Bear and Backfire would never come close to western bombers.

    Chaff and flare and jammer rounds makes them interesting options and their high rate of fire would give them a small chance against incoming missiles, but not enough to make them worth putting on brand new aircraft.

    I doubt they would remove them from existing types... the guns themselves are compact and light and what would you replace that weight with anyway?

    On new aircraft they will likely be replaced with small interceptor missiles for self defence from missiles and aircraft.

    I wouldn't replace the weight with anything it would just be so some weight even though it's small. I agree they would never be removed on Tu-95 now. Also because both aircraft are in separate threads I had to post it like this.
    d_taddei2
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    Post  d_taddei2 Thu Dec 07, 2017 10:19 pm

    Nuclear-capable Russian Tu-95 bombers in 1st-ever Pacific patrol from Indonesia

    https://www.rt.com/news/412367-russian-strategic-bombers-indonesia/
    George1
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    Post  George1 Sun Dec 10, 2017 1:27 pm

    PapaDragon
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    Post  PapaDragon Wed May 02, 2018 3:42 pm


    Red paintjob just in case someone doesn't get the hint Cool

    Tu-95MS "Bear" - Page 3 RnzpHnqFe6U
    George1
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    Post  George1 Wed Aug 15, 2018 2:33 am

    The contract for the creation of a deeply modernized strategic bomber Tu-95MSM

    As reported on August 13, 2018 by the agency Interfax, PJSC Tupolev concluded a contract with the Ministry of Defense of the Russian Federation to create a deeply modernized strategic missile carrier Tu-95MSM. This was reported by Interfax General Director of PJSC Tupolev Alexander Konyukhov.

    "The contract for deep modernization - Tu-95MSM - was signed a month and a half ago, and the work was deployed at the Taganrog Aviation Plant (Beriev-IFTTC)," said Konyukhov.

    "The first Tu-95MSM departure is planned for the end of 2019," said the head of Tupolev.

    He also noted that the decision to upgrade the fleet of Tu-95MS military aircraft will be made by the Ministry of Defense following the results of state tests.

    In addition, the state tests of the strategic missile carrier Tu-95MS with the upgraded engine NK-12MPM are currently underway - they will be completed by the end of 2018. "The tests are proceeding successfully, the ICG (state joint tests - IF) we will complete by the end of this year," said Konyukhov. He noted that during the tests the strategic missile carrier Tu-95MS with the modernized engine confirms the declared characteristics.

    https://bmpd.livejournal.com/3303872.html
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    Post  hoom Wed Aug 15, 2018 12:52 pm

    Any detail on what is upgraded in engines?
    Presumably better efficiency/durability rather than more power.
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    Post  GarryB Fri Aug 17, 2018 3:28 pm

    The Bear is a subsonic aircraft and would never be able to be supersonic, and also carries most of its strategic payload externally so more power is not really that much use... it would just burn fuel faster.

    A good case in point is the Yak-38 and the Yak-38M... the latter having more powerful engines which slightly increased takeoff load, but shortened range and did not increase speed by very much at all.

    I rather suspect upgrades would be focussed on high wear components being made more durable to extend life of parts so maintenance is cheaper/easier, and to reduce fuel burn...
    George1
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    Post  George1 Thu Aug 23, 2018 4:24 pm

    New engines to boost Tu-95MS strategic bombers’ flight range

    A new modification of the NK-12 engine for Russian strategic Tupolev Tu-95MS bombers will help increase their range

    KUBINKA /Moscow Region/, August 23. /TASS/. A new modification of the NK-12 engine for Russian strategic Tupolev Tu-95MS bombers will help increase their range and load and almost halve the level of the motors’ vibration, the press office of the state hi-tech corporation Rostec said on Thursday.

    Read also
    Russia to modernize Tu-95MS strategic missile-carrying bomber

    "The NK-12MPM engine developed by the Samara-based Kuznetsov public company (part of the UEC [United Engine Corporation] within Rostec) is a modification of the NK-12MP, the world’s most powerful (15,000 hp) serial-produced turbo-prop engine," says the statement obtained by TASS.

    "It allows improving the aircraft’s take-off characteristics and increasing the load-carrying capacity and the flight range of the missile-carrying bomber. The new powerplant uses more powerful propellers created by Aerosila Research and Production Enterprise while the new design solutions have almost halved the vibration level," the statement reads.

    "Currently, the Tu-95MS equipped with the NK-12MPM engine is undergoing the Russian Defense Ministry’s state trials," Rostec said.


    More:
    http://tass.com/defense/1018366
    LMFS
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    Post  LMFS Thu Aug 23, 2018 6:10 pm

    So, it not only the engine but also the propeller. There has been lots of advance in that regard since the design of the Tu-95
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    Post  JohninMK Thu Aug 23, 2018 9:57 pm

    LMFS wrote:So, it not only the engine but also the propeller. There has been lots of advance in that regard since the design of the Tu-95
    I would say, especially the propeller.

    Regardless of the application, propellers/fans have changed enormously over the past 20 years let alone 50 years. Just look at the humble cooling fan in your PC or car engine, let alone the prop on a C-130J or A-400M, or even a submarine.

    Its the computer power now in CAD directly influencing power efficiency from an engine.
    Tsavo Lion
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    Post  Tsavo Lion Thu Aug 23, 2018 10:09 pm

    I wonder, could pilots feather 1-2 engines in flight to save fuel & extend the range even more, like the USN P-3s do on long patrols?
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    Post  LMFS Thu Aug 23, 2018 11:48 pm

    JohninMK wrote:
    LMFS wrote:So, it not only the engine but also the propeller. There has been lots of advance in that regard since the design of the Tu-95
    I would say, especially the propeller.

    Regardless of the application, propellers/fans have changed enormously over the past 20 years let alone 50 years. Just look at the humble cooling fan in your PC or car engine, let alone the prop on a C-130J or A-400M, or even a submarine.

    Its the computer power now in CAD directly influencing power efficiency from an engine.
    If they prevent the tips from being supersonic they will reduce noise many times over, this is probably the reason for the noise reduction mentioned in the article. Probably this has an effect in efficiency too, though I can't quantify it. There was development with UDF engines and similar propeller solutions for high subsonic airliners with extreme degrees of fuel efficiency, it would be funny now to see the Tu-95 as the most fuel-economical bomber 60 years after its inception Very Happy
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    Post  hoom Sat Aug 25, 2018 2:20 pm

    Wow new props too!
    Smaller diameter/bigger area/more blades to get same drive from lower RPM & therefore bring tip speed subsonic?!
    Contra-rotating is still going to be noisy though.
    GarryB
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    Post  GarryB Sun Aug 26, 2018 5:52 am

    Actually the Bear is no where near as noisy and some other aircraft... the Harvard for one...

    The speed of the blades on the Bear are much slower than suspected in the west and generate more thrust with a coarser pitch for normal flight.

    Coaxial design increases the number of blades and further increases thrust without increasing blade length.

    The Bear is still the worlds fastest propeller driven aircraft... and the only propeller driven aircraft that requires a swept wing.
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    Post  Tsavo Lion Sun Aug 26, 2018 6:43 am

    Although slower, officially, its
    The Tupolev Tu-114, a large aircraft with four turboprop engines, has a maximum speed of 878 km/h (540 mph, Mach 0.73). The 11,000 kW (15,000 hp) Kuznetsov NK-12 turboprop engines designed for the Tupolev Tu-95 (and used to power the derivative Tu-114) are the most powerful turboprops ever built and drive large contra-rotating propellers. This engine-propeller combination gives the Tu-114 the official distinction of being the fastest propeller-driven aircraft in the world, a record it has held since 1960.
    https://en.wikipedia.org/wiki/Fastest_propeller-driven_aircraft#Turboprops
    The VVS didn't bother updating it with relevant world aviation bodies!
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    Post  mnztr Tue Aug 28, 2018 5:37 pm

    Does anyone have any detailed info on the new engines on the Bear, I am going to MAKS next year and look forward to seeing all the amazing Russian planes for the first time. The Bear still looks very futureistic in a steampunk kinda way. With schimitar props on this beast, who knows what it could do. I bet engine and prop updates can easily gain 20% in range.
    d_taddei2
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    Post  d_taddei2 Tue Aug 28, 2018 9:52 pm

    I have pics of Tu-95 and Tu-22m including one of me standing next to the blades of a Tu-95 gives you and idea of the size. Can be found along with other pics here on this forum if anyone is interested.

    https://www.russiadefence.net/t3372-my-pics-and-vids
    George1
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    Post  George1 Sat Sep 22, 2018 1:13 am

    Beriev supplied another upgraded Tu-95MS aircraft with the onboard number "54" for the Russian long-range strategic aviation.

    Tu-95MS "Bear" - Page 3 21230

    https://kot-or-osl.livejournal.com/2229138.html


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