JF17.6 and JF20 are self-made models for military enthusiasts

[maverick1977]

Kya advantages ki khichri pakao gai jab jahaz oora hi nahi sako gai paison ki waja sai?

Atomic bomb can be made, but we can’t fly a twin engine... what a BS...

Aik engine wala jahaaz ura rahay ho to 2 jahaaz wala nahi ora saktay... kya L logic hay.. start with one squadron and plan long term opex budget for it ... what a BS... small pea size brain conversation with double engine issues ...

 

[war&peace]

Just so you know, the F-35 single engine jet is as fast as the twin-engined jet Dassault Rafael. And only lags behind Su-30 MKI and Chengdu J-20 by 200 km/h (J-20 is also a 5th generation fighter). Granted F-22 Raptor and Sukhoi-57 are still 500 km/h faster than the F-35, it is still a very powerful fifth generation fighter.

For PAF, it will be difficult to operate, and maintain a fleet of fifth generation fighters specially a twin jet engine which will use much fuel, its in thousands of dollars per hour per plane. Yes, $1000's per hour of fly time per plane ( > $7000 ). So maybe until the current clueless government gets us out of our economic struggles, a single jet engine fighter is the ideal choice, even for a fifth generation fighter.

Okay now we are talking... because you have done some home work. Do you know why 5th gens need a lot more power.. ?
Ans: The stealth design compromises the aerodynamics performances of the airframe so more drag. Furthermore, internal bays and a lot more systems are housed inside the body which means the weight penalty and again that increases the drag, also the exhaust of the engine should be cooled as well. If I go into details then these are different types of drags (parasite or from drag, and induced drag) but that's out of the scope of this discussion. Then all these subsystems require power so the alternator / generator is also driven by the engine (turbine) thus a more powerful engine is needed. Also we cannot just talk about the raw power output of the engine rather we are interested in power / weight ratio ... and F35 being a heavier A/C is underpowered and can reach 1.2 Mach. If it does not have stealthy features and advanced avionics and missiles, it will be a sitting duck for any 4th gen A/C ...Furthermore, it carefully avoids the dog fight and relies on BVRs while still invisible to the enemy because it cannot perform certain manoeuvres. While F22 raptor, being a twin engined, has a lot more power so it can perform all types of manoeuvres.

 

[maverick1977]

Okay now we are talking... because you have done some home work. Do you know why 5th gens need a lot more power.. ?
Ans: The stealth design compromises the aerodynamics performances of the airframe so more drag. Furthermore, internal bays and a lot more systems are housed inside the body which means the weight penalty and again that increases the drag, also the exhaust of the engine should be cooled as well. If I go into details then these are different types of drags (parasite or from drag, and induced drag) but that's out of the scope of this discussion. Then all these subsystems require power so the alternator / generator is also driven by the engine (turbine) thus a more powerful engine is needed. Also we cannot just talk about the raw power output of the engine rather we are interested in power / weight ratio ... and F35 being a heavier A/C is underpowered and can reach 1.2 Mach. If it does not have stealthy features and advanced avionics and missiles, it will be a sitting duck for any 4th gen A/C ...Furthermore, it carefully avoids the dog fight and relies on BVRs while still invisible to the enemy because it cannot perform certain manoeuvres. While F22 raptor, being a twin engined, has a lot more power so it can perform all types of manoeuvres.

If Pakistan is investing in it then go with twin engine to expand avionics over time, hence a lot of power available and expansion can be made

 

[war&peace]

Kya advantages ki khichri pakao gai jab jahaz oora hi nahi sako gai paison ki waja sai?

WELL, you know how you can save all the money... just don't have airforce at all... why do you even need an AF?

 

[maverick1977]

WELL, you know how you can save all the money... just don't have airforce at all... why do you even need an AF?

Sick and tired of poor kahakaul mindset, aik engine wala jahaaz... start thinking big, think about how we can become a regional naval power, how Pakistan marine was expand, How twin engines should expand Pakistan deep strike capability ...
Nahi hun ghareeb hay, afford nahi kar sakta...200 million people and randi rona

 

[war&peace]

Sick and tired of poor kahakaul mindset, aik engine wala jahaaz... start thinking big, think about how we can become a regional naval power, how Pakistan marine was expand, How twin engines should expand Pakistan deep strike capability ...
Nahi hun ghareeb hay, afford nahi kar sakta...200 million people and randi rona

I don't know since when and how this shitty mediocrity became the strategy and policy. You have plenty of single engine A/Cs already but when you need to a twin engine, that is it you just need it.. no ifs and buts.. it is not for someone's entertainment and flying joys... it is about safeguarding the airspace.. Simple and straight forward and if you can't then let say it openly so we can find alternatives.

 

[Basel]

Ignorant kiddo, go check online F35 is underpowered and moron none of the powerful engines is available to PAF...


well the news was false.. so I don't need to argue with kids (I mean mentally kids)

In terms of engine UK and France are ready to sell engines and they can provide customized ones for Pakistani birds but its up to Pakistan they want it or not, because Pakistan never went for EJ-200 or M-88.

 

[Army research]

Azm is confirmed dual engine

 

[MastanKhan]

In terms of engine UK and France are ready to sell engines and they can provide customized ones for Pakistani birds but its up to Pakistan they want it or not, because Pakistan never went for EJ-200 or M-88.

Hi,

The UK / French engine engines do not bring that much to the table for the JF17---when looking at the cost of those engines---and compare it to the cost of the russian engne and its performance---.

The difference in the cost is better spent on a better EW and missile package---.

 

[maverick1977]

Azm is confirmed dual engine

This is music to my years... which means that’s the plane will have a capability to carry heavy loads, super cruise possibility and at the same time powerful electronic suite... way to go

 

[Basel]

Hi,

The UK / French engine engines do not bring that much to the table for the JF17---when looking at the cost of those engines---and compare it to the cost of the russian engne and its performance---.

The difference in the cost is better spent on a better EW and missile package---.

The engine life is much more then life JFT frame and they are much less maintenance frenzy then Russian engine also they are smaller in size allowing more space.

 

[Lincoln]

WELL, you know how you can save all the money... just don't have airforce at all... why do you even need an AF?

Don't exaggerate, ty. What I am saying is that we need to do whatever we must, but within means.

 

[ziaulislam]

This is music to my years... which means that’s the plane will have a capability to carry heavy loads, super cruise possibility and at the same time powerful electronic suite... way to go

azm has to be dual engine or a very strong single engine(which isnt available in forseeable future)..as fuel has to be carried internally for it to be stealth

 

[Ultima Thule]

F35 being a heavier A/C is underpowered and can reach 1.2 Mach.

No that not main reason, the main reason is that F-35 uses high by pass version of F-119 which low by pass turbo fan and high by pass turbo fan can't super-cruise and far far more quite than low by pass turbo fan @war&peace sir