Iran's new design for 5th Generation Fighter Jet

[ky]

Someone should model this aircraft in Orbiter to see how horribly it would fly (if it gets off the ground at all)

 

[Pipcard]

Someone should model this aircraft in Orbiter to see how horribly it would fly (if it gets off the ground at all)

In Orbiter, the aerodynamic model seems to be separate from the mesh itself.

 

[RisingFury]

Someone should model this aircraft in Orbiter to see how horribly it would fly (if it gets off the ground at all)

It would fly the way you would make it fly. Orbiter has quite a poor aerodynamics system...

 

[Urwumpe]

It would fly the way you would make it fly. Orbiter has quite a poor aerodynamics system...

Not poor... just very generic. How you implement the aerodynamics in your vessel DLL defines how sophisticated it really is.

Orbiters aerodynamics have some small short comings, but not that large.

But for finding out how it would likely fly, better use X-Plane.

 

[RisingFury]

Not poor... just very generic. How you implement the aerodynamics in your vessel DLL defines how sophisticated it really is.

Orbiters aerodynamics have some small short comings, but not that large.

But for finding out how it would likely fly, better use X-Plane.

Actually, there are quite a few large shortcomings. Certain things are possible to address, like moving the center of pressure with angle of attack, creating elaborate functions of lift as a function of multiple parameters,... but some things are impossible to address, like wings that are not vertical or horizontal, but set at an angle, modelling the stall characteristics of wings that have the same airfoil across the entire wing or one where the airfoil differs, all wings are at the same angle of attack, there's no way to make one that is at a higher angle of attack, oh and... good luck modelling canards. Any time you had more than one vertical and more than one horizontal airfoil to the plane, the thing just starts to shake at certain dynamic pressure or 10x time compression.

 

[Soheil_Esy]

April 2017 Qaher F-313 prototype 08 taxi test

http://nasrnews.ir/Portals/0/2017/4/25410158 (14).jpg
http://nasrnews.ir/News/tabid/243/ArticleID/68201/رونمایی-از-دستاوردهای-وزارت-دفاع-تصاویر
Prototype 08 of Qaher F-313

http://nasrnews.ir/Portals/0/2017/4/25410158 (3).jpg
http://nasrnews.ir/News/tabid/243/ArticleID/68201/رونمایی-از-دستاوردهای-وزارت-دفاع-تصاویر
Prototype 08 of Qaher F-313

http://nasrnews.ir/Portals/0/2017/4/25410158 (12).jpg
http://nasrnews.ir/News/tabid/243/ArticleID/68201/رونمایی-از-دستاوردهای-وزارت-دفاع-تصاویر
Prototype 08 of Qaher F-313

http://nasrnews.ir/Portals/0/2017/4/25410158 (11).jpg
http://nasrnews.ir/News/tabid/243/ArticleID/68201/رونمایی-از-دستاوردهای-وزارت-دفاع-تصاویر
Prototype 08 of Qaher F-313

http://nasrnews.ir/Portals/0/2017/4/25410158 (16).jpg
http://nasrnews.ir/News/tabid/243/ArticleID/68201/رونمایی-از-دستاوردهای-وزارت-دفاع-تصاویر
Prototype 08 of Qaher F-313

http://nasrnews.ir/Portals/0/2017/4/25410158 (17).jpg
http://nasrnews.ir/News/tabid/243/ArticleID/68201/رونمایی-از-دستاوردهای-وزارت-دفاع-تصاویر
Prototype 08 of Qaher F-313

http://nasrnews.ir/Portals/0/2017/4/25410158 (4).jpg
http://nasrnews.ir/News/tabid/243/ArticleID/68201/رونمایی-از-دستاوردهای-وزارت-دفاع-تصاویر
Prototype 08 of Qaher F-313

http://nasrnews.ir/Portals/0/2017/4/25410158 (1).jpg
http://nasrnews.ir/News/tabid/243/ArticleID/68201/رونمایی-از-دستاوردهای-وزارت-دفاع-تصاویر
Prototype 08 of Qaher F-313

http://media.mehrnews.com/d/2017/04/15/4/2430790.jpg
http://www.mehrnews.com/news/3952882/جت-آموزشی-کوثر-و-موشک-هوا-به-هوای-فکور-رونمایی-شد
Prototype 08 of Qaher F-313

The development of the Iranian stealth fighter program failed to progress due to the Rouhani's administration low priority policy.

The first images of the Qaher F313 taxi test have been released, just one day after Rouhani's official registration as a candidate in Iran's upcoming May 19, 2017 presidential election!

President unveils Defense Ministry achievements

Date: 15/04/2017

Tehran, April 15, IRNA – President Hassan Rouhani participated Saturday in an exhibition displaying the achievements of the Defense Ministry gained during the past two years.

President Rouhani unveiled the domestic training jet named Kosar, the tactical unmanned aerial vehicle (UAV) called Mohajer-6, the anti-ship cruise missile dubbed Nasir and the air-to-air missile named Fakour.

Also, the president attended a ceremony on preparation of the flight of the Qaher-313 fighter.

Kosar, the indigenous training jet, which has been designed, built, tested and standardized inside the country, has put Iran on the list of the few world states which enjoy such a capability.


http://www.irna.ir/en/News/82493008/

Apr 15, 2017 Video

https://www.youtube.com/watch?v=x95JmBfQgj0
​

Iran unveils first indigenous turbo jet engine

Published on Aug 22, 2016

Iran’s President Hassan Rouhani has unveiled the country's first indigenous turbo jet engine dubbed "Owj." In a ceremony marking Iran’s Defense Industry Day, Rouhani called for bridging what he described as an industrial gap between the nation and developed countries.

http://mod.gov.ir/sites/default/files/4/motor oj (17).JPG
http://mod.gov.ir/news/در-مراسم-روز...صورت-گرفت«رونمایی-از-نخستین-موتور-توربوجت-ملی

http://mod.gov.ir/sites/default/files/4/motor oj (9).JPG
http://mod.gov.ir/news/در-مراسم-روز...صورت-گرفت«رونمایی-از-نخستین-موتور-توربوجت-ملی

http://cdn.isna.ir/d/2016/08/21/4/57337799.jpg?ts=1484427484009
http://en.isna.ir/photo/95050119817/News-in-photo-Rouhani-unveils-indigenous-plane-turbo-jet

https://defence.pk/pdf/attachments/engineowj-png.371891/

The turbojet is an airbreathing jet engine, usually used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet, a compressor, a combustion chamber, and a turbine (that drives the compressor).

The engine is said to be able to operate at an altitude of 15,000 altitude in various climatic conditions and could bear a take-off weight of 10 tons.
The Owj comprise 4,000 different components. The engine can now serves as a reference platform that lead Iran in the design of heavy and semi-heavy class jet engines.

http://www.presstv.com/Detail/2016/...stry-Day-Hassan-Rouhani-Owj-turbo-jet-engine-

Aug 22, 2016 Video

https://www.youtube.com/watch?v=8OkB9gVATFM
​

 

[RisingFury]

That thing looks like it's made of plastic.

 

[MaverickSawyer]

Probably is.

Looks like a J85-derived engine, which isn't surprising.

 

[Fabri91]

This airplane is a disgrace to Iranian aerospace engineering: while they succeeded in the respectable task of keeping F-5s, F-4s and the more complex F-14 at least somewhat operational without easy access to spare parts, while apparently reverse engineering the F-5 and manufacturing at least some examples of an aircraft derived from it, this propaganda toy plane is just a source of ridicule.

 

[N_Molson]

but some things are impossible to address, like wings that are not vertical or horizontal, but set at an angle, modelling the stall characteristics of wings that have the same airfoil across the entire wing or one where the airfoil differs, all wings are at the same angle of attack, there's no way to make one that is at a higher angle of attack, oh and... good luck modelling canards.

I guess that someone skilled both in aerodynamics and coding could probably write something like an "Aerodynamics API" with more advanced functions...

 

[RisingFury]

...this propaganda toy plane...

Well, the plane could be real, just I seriously doubt its stated capabilities.

Pros:
- Good visibility out of cockpit.
- Reduced RADAR reflectivity, even if it has no stealthy paint (air intakes hidden from ground RADAR, tail hidden from ground RADAR, flat surfaces with few round ones,...
- Features for high AOA.

Cons:
- Seriously small wings (low takeoff weight, high takeoff speed).
- SERIOUSLY small air control surfaces, even if you include the air control surface on the canard.
- Only partially movable canard, which will increase drag at high AOA.
- Vertical tail is giant in comparison, so looks like they're hoping for the tail to provide some pitch control. It'll cost drag, though.
- The fighter itself is small, so if you include internal weapons bay, it doesn't leave much space for fuel. Low endurance and range.
- The very wide and open cockpit will allow for a lot of RADAR reflectivity of the pilot, cockpit and ejection system.
- The main wing is small, but very thick. That's the only way they can put any fuel in it, but it's really gonna cost drag. It'll also put the CG of the aircraft close to the wing, so the wing's air control surface will have a small lever and be very ineffective.
- No thrust vectoring. Ouch!

Just plain odd:
- Not sure what's going on with the exhaust. There's no visible shielding for the paint. This is a prototype, sure, but wtf...
- Air intake is small, even if there's only one engine.
- Not sure what's going on with the dropped wingtips. Maybe they're hoping for a higher lift at high AOA, creating a pillow of air under the wing...


Obviously I can't comment on the plane's capabilities without know what's actually inside, but just from the outside the aircraft doesn't seem well optimized. There is one role in which it could sort of work: As an interceptor.

If the aircraft is light and has a small loadout, its climb rate could be decent. But the aircraft is not optimized for stealth from the top, where the enemy would see it coming, but from the bottom, suggesting an attack role. It's kind of weird.

 

[MaverickSawyer]

It's supposed to be a CAS/ light strike role aircraft, from what I've read.

 

[RisingFury]

It's supposed to be a CAS/ light strike role aircraft, from what I've read.

Really really weird design choice. CAS airplane needs long endurance time, variety of weapons and a large loadout, but can sacrifice speed, stealth and maneuverability.

This airplane is somewhat maneuverable, can be decently fast and stealthy, but due to internal bay will not be able to have a significant variety of weapons, a large loadout or long endurance.


Strike role I can see. I'll bet the plane is more stealthy from the ground than from the air, but its small size will hurt it.

 

[Andy44]

Anyone remember the 1982 movie "Firefox"?

All this thing needs is a thought-reading helmet, and it will work as long as the pilot can "think Russian"...er...."Farsi"

 

[Soheil_Esy]

April 2017 Qaher F-313 prototype 08 taxi test

Principle behind the design of the Qaher F-313

Bavar-2 seaplane's doctrine

Submarines use thermoclines to evade detection, the way an aircraft flying low over the horizon uses atmospheric refraction to its advantage.

Similarly, any aero-naval platform that make use of the two submerge/surface and surface/air interfaces can significantly decrease the probability of being detected.

Bavar-2 seaplane is the first Iranian aero-naval platform specifically designed to reduce the probability of detection, by lurking between the surface/air interface.


Fying Manta Rays, Video uploaded Aug 25, 2013

https://www.youtube.com/watch?v=e6IN8Aoben4
​

Bavar-2 seaplane

The future ground effect Qaher 313 will be deployed as a stealth CAG naval bomber, similar in its mission to the Chinese stealth J-20 CAG naval bomber.
The Chengdu J-20 is not an air superiority fighter, the role of the dedicated CAG Shengyang J-31. Thus Iran's future CAG air superiority fighter will not be the Qaher-313.
It will replace the Bavar-2 (Belief 2 باور دو) ground effect, radar-evading fixed-wing seaplane, currently deployed in the Iranian navy IRGC fleet.
The Bavar-2 can be equipped with different kinds of weapons including rockets and ASM missiles, and with a cruising speed of 185 km/h.

The Bavar-2's very low speed is its actual tactic as most radars cannot detect extremely slow moving plane. Even if some can do it, the plane will have landed on water and now it's a stealth boat. It confuses the enemies and their radars. Once the carrier group realises this, its too late.
These swarm of flying boats should overwhelm all CIWS and RIMs.

http://jamejamonline.ir/Media/images/1389/07/06/X00886966741.jpg
Bavar-2

http://jamejamonline.ir/Media/images/1389/07/06/X00886966750.jpg
Bavar-2


September 15, 2010 Video Uploaded Oct 30, 2014

https://www.youtube.com/watch?v=K5fIk3Vgd1k
​

Comparing the Qaher-313 with an existing Anti-Ship Stealth Drone

New Stealthy Rainbow series of unmanned aerial vehicles

May 4, 2017

http://static.hypercomments.com/data/images2/guest/1494053531628026
http://img.dingsheng.com/attachment/forum/201705/03/180124eogu6owwa5homh64.jpg
http://www.dingsheng.com/forum.php?mod=viewtree&tid=995564&extra=page=1
中国彩虹系列无人机. Rainbow series Cai Hong-XX Anti-Aircraft-Carrier drone



China is developing a new drone that uses ground effect technology to skim the surface of the ocean, allowing it to fly just eighteen inches off the water.
The unmanned vehicle could be a challenging opponent for potential adversaries, some of whom would find it difficult to detect.

The drone appears to have a set of forward canards and a pair of upward swept wings. It has an air intake on top instead of the bottom, perhaps to avoid sea spray from being sucked into the engine at very low altitude.
Most modern cruise missiles are what are called "sea-skimmers," flying thirty feet or less above the surface of the water in order to avoid detection. The curvature of the Earth means sea skimming shortens the distance that enemy ship radars can detect it, giving the defender less time to shoot it down.

Against typical sea skimmers, a ship radar thirty feet above sea level would detect the incoming missile at 15.4 miles. The same radar would only detect the Chinese drone at 9.48 miles. A drone flying that close to the ground won't be flying supersonic, and by appearances the UAV has a turbofan engine. Assuming a speed of 600 miles an hour, typical for subsonic anti-ship missiles, an enemy ship would have 59 seconds to react.

The drone can fly this low thanks to the ground effect principle, which takes place when very low flying aircraft experience more lift and less drag due to the presence of the ground underneath. The ground blocks the trailing vortices of the wing and decreases downwash. Further evidence that the drone takes advantage of ground effect is its low-wing design, where the wing root is at the bottom of the fuselage, a common feature among ground effect vehicles.

The drone has an estimated flying time of 1.5 hours, which at 600 miles an hour would give it a 900 mile range. It has a maximum takeoff weight of 6,000 pounds and a maximum payload—likely a blast fragmentation warhead—of 2,000 pounds. That's the average size of warheads the Soviet Union fielded during the Cold War to take out American aircraft carriers—that is, if when weren't fielding nuclear warheads.

Once launched, the aircraft or drone can continue to provide updated targeting data, allowing the anti-ship drones to operate with radars off. This gives them a better chance of sneaking up on the enemy, as radar is another means by which incoming missiles can be detected.

http://www.popularmechanics.com/military/weapons/a26382/china-sea-skimming-anti-ship-drone/

Qaher-313 to be deployed as CAG Naval bomber

Qaher 313 has a set of forward canards, like the navalized version of the Soviet Sukhoi Su-27SK, known as the CAG Sukhoi Su-33 or the CAG Shenyang J-15.

Iranian Navy Reveals Plans to Build Aircraft Carrier

Mon Dec 26, 2016 4:15

Deputy Navy Commander for Coordination Admiral Peiman Jafari Tehrani said on Monday.

"Building an aircraft carrier is also among the goals pursued by the Navy and we hope to attain this objective," he added.

"As we have managed to produce warships and submarines, we also have the capability to build aircraft carriers and heavy submarines," Sayyari said in 2014.

He underlined that building aircraft carriers and heavy submarines can be started upon a relevant decision by high-ranking Iranian officials.

http://en.farsnews.com/newstext.aspx?nn=13951006001117