F-35 Joint Strike Fighter

[BON PLAN]

You are talking about this as if the only think the F-35 will detect is a ring tone that alert the pilot of the radar,
No, for ground radar, pilot will be able to locate their exact location.
Besides, there is literally nothing stop the F-35 from using its own radar, IR sensor to detect your fighter, especially if your fighter are not stealthy

If the IR sensors of F35 can track an opponent, another plane (brand new IRST equipped) can also. And not at 400km.
DAS was said to be inferior to Sniper pod.
A fighter trying to chase a F35 is seen from front : where the IR trace is the smaller. It's probably not the case of the F35 in this situation.

A F35 using its radar loose its Stealth....

 

[BON PLAN]

On the contrary, it can, the temperature and IR signature of jet engine is not directly proportional to their thrust value. I have explained this to you many times.

As all modern engine, the temperature of the core, ie of the exhaust plume, is high to have the best efficience possible.
F135 is not the sole engine using fresh air to cool the plume. But it remain hot. And the F35, with its truck aerodynamism need a sustain quite high thrust, ie high IR trace.

 

[BON PLAN]

This is a footages of DAS and AN/APG-81 testing aboard a surrogate BAC 1-11 aircraft. These tests are 1,300+ kms to 1,900 kms distance.



Imagine a twin engined SU-27 class fighter at 400 kms distance. It will be clear as daylight to a formation of 4 F-35s.

Note also that these tests were carried out using only a BAC 1-11 aircraft whose max ceiling is only 11 kms while the publicly known ceiling of F-35 is 15 kms (most definitely its real ceiling is higher).

Film taken at such an altitude... It's absolutely not sure the seeker was on a F35.
And the signature in the 2nd film is so weak.... You don't know a missile will be fired, you see nothing.

 

[StealthFlanker]

If the IR sensors of F35 can track an opponent, another plane (brand new IRST equipped) can also. And not at 400km.
DAS was said to be inferior to Sniper pod.
A fighter trying to chase a F35 is seen from front : where the IR trace is the smaller. It's probably not the case of the F35 in this situation.

A F35 using its radar loose its Stealth....

DAS is a 360 coverage ÍT, the main point of it is wide coverage, for long range detection F-35 also has EOTS.
The main disadvantage of passive system such as IRST is the inability to measure range/ velocity by themselves ( neccesary for firing solution), IRST normally rely on LRF to get range/ velocity information, but both of those got very short range often around 15-25 km

Another way is to rely on radar in short burst to get this information, so then even if both side mainly use their IRST system, F-35 will get firing solution from much greater distance thanks to its radar, while adversary's radar can't do that (because their opponent is VLO) and they have to rely on their short range LRF.
Btw you can't just assume the chase aircraft magically appeared behind F-35

Furthermore, RWR suffer very similar issue when try to measure distance to an airborne target and its speed
https://basicsaboutaerodynamicsandavionics.wordpress.com/2016/03/02/rwresm-and-passive-geolocation/
Most method of passive ranging against a fighter aircraft with RWR is very inaccurate and time consumming, also very easy to counter , so even when we discount LPI , when an F-35 operate its radar , it is mostly betray its general direction, rather than letting enemy achieve a lock and as i said before, nothing stop one F-35 from sharing data with its fleets, if there are 20 F-35 and you only know the general direction of 2-3 of them, then you gonna have a bad day

 

[StealthFlanker]

As all modern engine, the temperature of the core, ie of the exhaust plume, is high to have the best efficience possible.
F135 is not the sole engine using fresh air to cool the plume. But it remain hot. And the F35, with its truck aerodynamism need a sustain quite high thrust, ie high IR trace.

The core and the exhaust plumes are 2 very different parts. High core temperature => better thrust and efficiency, but temperature of core ( or high pressure turbine) is not directly proportional to the temperature of the exhaust plumes, since there are plenty of way to cool down the plumes/ engine pipe, such as using ambient air, high by pass ratio, longer engine ..etc. The third stream of the new ACE engine will reduce the temperature even further.
Last but not least, F-35 does't have truck aerodynamic, F-35 has low wing sweep, that mean the drag at mach raised earlier and bigger

and along with DSI optimized to subsonic-Mach 1.6 lead to F-35 is not a very fast fighter but that doesn't mean it is super draggy at subsonic speed ( aka the crusing condition), so there isn't a need to maintain high thrust in cruise at all

 

[asianobserve]

Film taken at such an altitude... It's absolutely not sure the seeker was on a F35.
And the signature in the 2nd film is so weak.... You don't know a missile will be fired, you see nothing.

Those tests were carried out on a BAC1-11 surrogate plane. So an F-35 will have a much higher altitude than that test aircraft and thus will offer better detection ranges.

DAS has 360 degrees field of view. So it can see all around the aircraft. Besides F-35s on attack will always be on formations of 4 aircraft each. So their sensors are cooperating and coordinating while staying stealthy.

Note that F-35 DAS, AN/APG-81 and other sensors and EW components are fully integrated. So when DAS picks up a heat signature the data is automatically analyzed and passed on to AN/APG-81 radar to be cued in LPI mode. The object will then be compared in the F-35 threat library and if a threat, will be identified as such and the data displayed in F-35s massive central display and directly on to pilot's HMD and passed unto other F-35s, other nearby aircraft or nearby sea-based or land based assets via secure datalink. In the F-35 the pilot can therefore immediately and easily decide whether to shot down the threat using AMRAAM or do other course of action like asking a nearby Arleigh Burke destroyer to shoot down the threat using SM-6.

 

[asianobserve]

Top Secret F-35F JSMF
April 1, 2019 Tom Demerly

Newly released image of Israel's top-secret F-35F Nebekh Joint Social Media Fighter (JSMF) first seen on April 1, 2019.

https://theaviationist.com/2019/04/01/revealed-israels-top-secret-f-35f-jsmf/

 

[shankyz]

Top Secret F-35F JSMF
April 1, 2019 Tom Demerly

Newly released image of Israel's top-secret F-35F Nebekh Joint Social Media Fighter (JSMF) first seen on April 1, 2019.

https://theaviationist.com/2019/04/01/revealed-israels-top-secret-f-35f-jsmf/

Chinese do not have capability of reading an article before posting, right?

Sometimes, even 50 cents is too much for you guys.

 

[asianobserve]

Chinese do not have capability of reading an article before posting, right?

Sometimes, even 50 cents is too much for you guys.

Where's your sense of humor? It's April, fool!

 

[shankyz]

Where's your sense of humor? It's April, fool!

So the 50-center finally managed to read the article with his so-called eyes. Kudos !

 

[asianobserve]

So the 50-center finally managed to read the article with his so-called eyes. Kudos !

You should change your name to "shallowz" because that's whst you are. And stop flame baiting if you have nothing concrete to share in this topic.

 

[asianobserve]

US suspends delivery of F-35 jet equipment to Turkey

https://edition-m.cnn.com/2019/04/0...d-turkey/index.html?r=https://www.google.com/

 

[shankyz]

You should change your name to "shallowz" because that's whst you are. And stop flame baiting if you have nothing concrete to share in this topic.

So sharing a fake / April Fool's article on F-35 without reading it on a Defence forum = Adding something concrete

When countered on the same = Flamebaiting

No wonder you cannot even properly "observe" with those slit eyes.

 

[BON PLAN]

DAS is a 360 coverage ÍT, the main point of it is wide coverage, for long range detection F-35 also has EOTS.
The main disadvantage of passive system such as IRST is the inability to measure range/ velocity by themselves ( neccesary for firing solution), IRST normally rely on LRF to get range/ velocity information, but both of those got very short range often around 15-25 km

Another way is to rely on radar in short burst to get this information, so then even if both side mainly use their IRST system, F-35 will get firing solution from much greater distance thanks to its radar, while adversary's radar can't do that (because their opponent is VLO) and they have to rely on their short range LRF.
Btw you can't just assume the chase aircraft magically appeared behind F-35

Furthermore, RWR suffer very similar issue when try to measure distance to an airborne target and its speed
https://basicsaboutaerodynamicsandavionics.wordpress.com/2016/03/02/rwresm-and-passive-geolocation/
Most method of passive ranging against a fighter aircraft with RWR is very inaccurate and time consumming, also very easy to counter , so even when we discount LPI , when an F-35 operate its radar , it is mostly betray its general direction, rather than letting enemy achieve a lock and as i said before, nothing stop one F-35 from sharing data with its fleets, if there are 20 F-35 and you only know the general direction of 2-3 of them, then you gonna have a bad day

We are far from the begining. The begining was that a low band (or a multi static one) can guide a 3rd or 4th gen fighter close to a VLO target so as to fire on it even without opening it's own radar, and , it's my point of view, with no alert on the VLO prey.

 

[BON PLAN]

Top Secret F-35F JSMF
April 1, 2019 Tom Demerly

Newly released image of Israel's top-secret F-35F Nebekh Joint Social Media Fighter (JSMF) first seen on April 1, 2019.

https://theaviationist.com/2019/04/01/revealed-israels-top-secret-f-35f-jsmf/

nice this 1st april news.

 

[BON PLAN]

US suspends delivery of F-35 jet equipment to Turkey

https://edition-m.cnn.com/2019/04/01/politics/us-f-35-suspend-turkey/index.html?r=https://www.google.com/

With Erdogan move, I see a potential JF17 purchase (from Muslim Pakistan) or J10 ou FC31 , just to increase the number of fighters and stop fully relying on US.

 

[asianobserve]

With Erdogan move, I see a potential JF17 purchase (from Muslim Pakistan) or J10 ou FC31 , just to increase the number of fighters and stop fully relying on US.

That would be a really foolish thing to do for Erdogan. So he's leaving a strong group of allies with top notch weapons lead by the Americans for a weak loose group of desperados with second-rate weapons that only pariah states buy because they cannot buy Americans and their allies' weapons?

Oh well, only megalomaniacs like Erdogan makes that mistake. I just hope the rest of Turkey wakes up and takes control before Erdogan totally drags them down to hell.

 

[bhramos]

With Erdogan move, I see a potential JF17 purchase (from Muslim Pakistan) or J10 ou FC31 , just to increase the number of fighters and stop fully relying on US.

why will he go for 4th Gen aircraft for a 5th Gen F-35.... lol

 

[asianobserve]

why will he go for 4th Gen aircraft for a 5th Gen F-35.... lol

A 4th gen dressed like 5th gen...Ever wonder why Russia continues to buy Su-35 when Su-57 is already in full rate production?

 

[StealthFlanker]

We are far from the begining. The begining was that a low band (or a multi static one) can guide a 3rd or 4th gen fighter close to a VLO target so as to fire on it even without opening it's own radar, and , it's my point of view, with no alert on the VLO prey.

The thing is the 3-4 gen are not stealthy, so there is no way for them to approach the VLO aircraft without being detected themselves by either the 5gen radar or AWACS