PAK-DΑ: News #2

Vann7 wrote:

is this the new pak-da design. ??  




i hope it is.. looks very futuristic.. and sexy. ..  

Vann7 wrote:
is this the new pak-da design. ??  

i hope it is.. looks very futuristic.. and sexy. ..  

TsAGI continues to work on the "Flying Wing"



Specialists of the Central Aerohydrodynamic Institute named after Professor N.E. Zhukovsky (part of the SEC "Institute named after NE Zhukovsky") continues to create a promising long-range aircraft in the scheme "Flying Wing" (LC) with a combined wing and fuselage. To date, an improved aerodynamic model of an aircraft has been completed and prepared for testing.

Studies on the formation of the appearance of the passenger liner of the LC scheme have been conducted at the institute for several years as part of the Line Research and Highway Technologies. Previously, a special thematic model with various options for the location of power plants and the tail geometry was designed and tested in the TsAGI wind tunnels. The experiments showed unfavorable interference at the upper position of the engine nacelles.

At the next stage, scientists continued the calculation and design work to optimize the aerodynamic layout of the Flying Wing and eliminate the adverse effects from the interaction of nacelles, pylons and the wing.

“The fuselage is clearly distinguished in the new configuration, which allows increasing passenger capacity and favorably affects aerodynamic interference with engines on the upper surface of the center section,” said Ivan Chernyshev, head of the department of aerodynamics of aircraft and missiles of TsAGI.

Experts of the Institute’s pilot production embodied a promising layout in metal - steel and aluminum alloys. The model is made on a scale of 1: 33.3, has a length of more than a meter and a wingspan of 1.8 meters. The design of the product is monolithic, it is a massive center wing with wing consoles docked to it and a  V-shaped twin keel tail. Due to the small number of parts - only 93 units - the manufacture of paints was not very difficult.

In the near future, testing of the Flying Wing model in the T-128 transonic tube will begin. Scientists will study its integral aerodynamic characteristics at cruising flight modes, including those with removed nacelles - to quantify the value of aerodynamic interference. It is also planned to visualize the flow around the model.

The Flying Wing is one of the most promising configurations for future subsonic passenger and cargo aircraft. Its main advantage is the ability to obtain high aerodynamic quality at a cruise flight mode (more than 23) and dramatically reduce noise on the ground by shielding the engines with glider elements. It is assumed that passengers can be comfortably accommodated on the two decks of the Flying Wing. This will allow not only transporting more people, but also improve the specific characteristics of the aircraft, including aerodynamics, weight and fuel consumption.

http://tsagi.ru/pressroom/news/4772/

magnumcromagnon wrote:TsAGI posted this as recent as March 17th, 2020:

TsAGI continues to work on the "Flying Wing"



Specialists of the Central Aerohydrodynamic Institute named after Professor N.E. Zhukovsky (part of the SEC "Institute named after NE Zhukovsky") continues to create a promising long-range aircraft in the scheme "Flying Wing" (LC) with a combined wing and fuselage. To date, an improved aerodynamic model of an aircraft has been completed and prepared for testing.

Studies on the formation of the appearance of the passenger liner of the LC scheme have been conducted at the institute for several years as part of the Line Research and Highway Technologies. Previously, a special thematic model with various options for the location of power plants and the tail geometry was designed and tested in the TsAGI wind tunnels. The experiments showed unfavorable interference at the upper position of the engine nacelles.

At the next stage, scientists continued the calculation and design work to optimize the aerodynamic layout of the Flying Wing and eliminate the adverse effects from the interaction of nacelles, pylons and the wing.

“The fuselage is clearly distinguished in the new configuration, which allows increasing passenger capacity and favorably affects aerodynamic interference with engines on the upper surface of the center section,” said Ivan Chernyshev, head of the department of aerodynamics of aircraft and missiles of TsAGI.

Experts of the Institute’s pilot production embodied a promising layout in metal - steel and aluminum alloys. The model is made on a scale of 1: 33.3, has a length of more than a meter and a wingspan of 1.8 meters. The design of the product is monolithic, it is a massive center wing with wing consoles docked to it and a  V-shaped twin keel tail. Due to the small number of parts - only 93 units - the manufacture of paints was not very difficult.

In the near future, testing of the Flying Wing model in the T-128 transonic tube will begin. Scientists will study its integral aerodynamic characteristics at cruising flight modes, including those with removed nacelles - to quantify the value of aerodynamic interference. It is also planned to visualize the flow around the model.

The Flying Wing is one of the most promising configurations for future subsonic passenger and cargo aircraft. Its main advantage is the ability to obtain high aerodynamic quality at a cruise flight mode (more than 23) and dramatically reduce noise on the ground by shielding the engines with glider elements. It is assumed that passengers can be comfortably accommodated on the two decks of the Flying Wing. This will allow not only transporting more people, but also improve the specific characteristics of the aircraft, including aerodynamics, weight and fuel consumption.

http://tsagi.ru/pressroom/news/4772/

GarryB wrote:I am not sure some of these offshoot programmes will actually lead to anything... there were airliner versions and interceptor versions of the Tu-22M as well as the Tu-160... and none of them led to much... but the fact that they are thinking about commercialising their products is a good thing for Russia.

kvs wrote:Modern civilian jets need super fuel efficiency for economic reasons.   I doubt that the Tu-160 can be reworked into a civilian
product.  Where are they going to fit the high-bypass turbofans?   The concept is from the 1960-70s Tu-144 era where fuel
consumption was not the first item on the list of priorities.  

A civilian Tu-160 would be like the Concorde some high priced boutique service.   But this business model is not viable as
demonstrated by the Concorde.

GarryB wrote:

The flights of Tu-144 and Concorde were not suspendend because of fuel consumption, it was because of safety reasons (accidents).

The original Tu-144 didn't have wonderful range, though it was slightly faster than the Concord it used AB all the way.

In the 90s I believe it was NASA who hired a Tu-144LL and had NK-32 engines from the Blackjack installed and its performance was actually much more interesting.

Obviously now technology has moved on so composite materials and new titanium structures would dramatically reduce weight and improved design would reduce drag and increase flight performance... a new supersonic airliner would be much more efficient and effective.... the problem is that you can bet your ass if it is Russian then the west will mobilise against it... it will be single handedly creating holes in the Ozone while at the same time making glaziers melt all over the globe...

In a business world, where every second counts, in contrast to 70ies or 80ies....the price of tickets is not so important. If the CEO of a company can travel 7 hours faster, the company will pay a bit more for sure Wink And I can imagine a few rich arabs will buy the product too ;D

More money than you might think in Asia... China recently surpassed the US for number of Millionaires and Billionaires...

But if it is Russian you can expect the western media attack dogs to rip it every chance they get...

Personally I could care less... they have the Il-96... with PD-35 engines developed for the PAK DA programme will be an excellent aircraft... and its use in a PAK TA will be interesting too...

A flying wing PAK TA with conformal radar antenna elements fitted to its front and rear and sides could be used for AWACS and JSTARs roles and also as an inflight refuelling tanker and fire fighting aircraft as well as being a transport plane... there is plenty of scope for multipurpose development and design...

TsAGI continues to work on the "Flying Wing"

Vann7 wrote:

magnumcromagnon wrote:TsAGI posted this as recent as March 17th, 2020:

TsAGI continues to work on the "Flying Wing"

Looks awfully bad ,for a next gen bomb.. and doesn't look stealthy either..  i can see forums discussions
making fun of Russia military industry ,which is what putin likes.. to embarrass his nation creativity
in the military ,specially in the way they do planes. ,looks like Russia military is doing things the way they like it more to do it.. in the most laziest rudimentary way possible...to save time and money...  they should not bother at all doing a new bomber if this crap is what they planning to do . just remake the tu-160 with more fuel space and weapons space ,improve the engines power and build hundreds of them.. all those russian next gen bombers will be easily detected by AWACS  like Boeing E-3 Sentry flying at high altitude from 2,000km away ,so it defy the purpose of making the plane stealthy at all..  this is why i have no hopes for pak-da.. should be cancelled and they focus in mig 41 they building and make it as awesome as possible..

this is why the perception of Russia will never go away of an outdated nation , they rarely push for
innovation and leadership in modern tech.. is like one US pilot interviewed told one time ,after flying
a mig-29.. russia build their planes in same way they do tanks.. with a hammer.. and not with high tech..
to make them simple and effective and elegance in their design is never even important.  

Azi wrote:

kvs wrote:Modern civilian jets need super fuel efficiency for economic reasons.   I doubt that the Tu-160 can be reworked into a civilian
product.  Where are they going to fit the high-bypass turbofans?   The concept is from the 1960-70s Tu-144 era where fuel
consumption was not the first item on the list of priorities.  

A civilian Tu-160 would be like the Concorde some high priced boutique service.   But this business model is not viable as
demonstrated by the Concorde.

The flights of Tu-144 and Concorde were not suspendend because of fuel consumption, it was because of safety reasons (accidents).

The Tu-160 is a mature product with better engines, than in the 70ies. Of course it's a product only for a niche, but it's a shitload of advertisment for russian aircraft industry. They can create a product, that no other nation plan to build...that will impact the sale of other russian aircrafts positive.

In a business world, where every second counts, in contrast to 70ies or 80ies....the price of tickets is not so important. If the CEO of a company can travel 7 hours faster, the company will pay a bit more for sure And I can imagine a few rich arabs will buy the product too ;D

magnumcromagnon wrote:

GarryB wrote:I am not sure some of these offshoot programmes will actually lead to anything... there were airliner versions and interceptor versions of the Tu-22M as well as the Tu-160... and none of them led to much... but the fact that they are thinking about commercialising their products is a good thing for Russia.

I think those never came to fruition because of Gordo-chov and Yelpsin....In fact the pussy Yelpsin didn't mind firing tank shells in to his own parliament, but the smelly vagina Yelpsin caved on threats by Boeing if they were to further develop IL-106. Thanks to Yelpsin there isn't a cost-competitive Russian (IL-106) airliner to compete on the open market....but we can all take solace that the fat slob Yelpsin is a rotting corpse pushing up daisies!

Vann7 wrote:this is why i have no hopes for pak-da.. should be cancelled