TR Air-Force TF-X KAAN Fighter Jet

[Huelague]

@TheInsider

About the „ACE“ on FCAS

„The variable cycle engine (VCE) architecture allows flexible adaptation to operational requirements, resulting in high specific thrust and low fuel consumption. The VCE architecture differs from conventional drive systems primarily by an adjustment mechanism and an additional flow channel. With the help of the adjustment mechanism, the engine control regulates how much sucked-in air flows through the respective flow channels and the core engine. Thanks to this variable distribution, the thermodynamic cycle of the engine can be optimally adapted to the most common operating requirements and thus guarantees a high specific thrust and low fuel consumption.“

Kurz erklärt: New Generation Fighter Engine

Triebwerk der nächsten Generation: Einblicke in die Schlüsseltechnologien hinter dem New Generation Fighter Engine (NGFE).

aeroreport.de

 

[TheInsider]

@TheInsider

About the „ACE“ on FCAS

„The variable cycle engine (VCE) architecture allows flexible adaptation to operational requirements, resulting in high specific thrust and low fuel consumption. The VCE architecture differs from conventional drive systems primarily by an adjustment mechanism and an additional flow channel. With the help of the adjustment mechanism, the engine control regulates how much sucked-in air flows through the respective flow channels and the core engine. Thanks to this variable distribution, the thermodynamic cycle of the engine can be optimally adapted to the most common operating requirements and thus guarantees a high specific thrust and low fuel consumption.“

Kurz erklärt: New Generation Fighter Engine

Triebwerk der nächsten Generation: Einblicke in die Schlüsseltechnologien hinter dem New Generation Fighter Engine (NGFE).

aeroreport.de

There is no FCAS and there is also no French ACE.

 

[Huelague]

There is no FCAS and there is also no French ACE.

That’s not the point here. You mentioned that Tempest and FCAS are no 6. Gen. Fighter Jet, because both have no ACE engines. It seems you are literally wrong, proofed by official links.

Still, France (Safran) and Germany (MTU) are working on ACE.

 

[TheInsider]

That’s not the point here. You mentioned that Tempest and FCAS are no 6. Gen. Fighter Jet, because both have no ACE engines. It seems you are literally wrong, proofed by official links.

Still, France (Safran) and Germany (MTU) are working on ACE.

Tempest has no ACE and has a tail, it is not a 6th gen. Engine of Tempest produces more electric that is it. FCAS and French ACE don't exist, FCAS drawings have a tail. It is not 6th gen proved literally. A fighter with a tail can't have wide-spectrum stealth unless something like plasma stealth becomes viable.

 

[Samba]

Tempest has no ACE and has a tail, it is not a 6th gen. Engine of Tempest produces more electric that is it. FCAS and French ACE don't exist, FCAS drawings have a tail. It is not 6th gen proved literally. A fighter with a tail can't have wide-spectrum stealth unless something like plasma stealth becomes viable.

All aside China claims they developed a quantum radar that can detect so called stealth fighters.

 

[Zafer]

All aside China claims they developed a quantum radar that can detect so called stealth fighters.

Quatum radar too has range limitations, like 100 km AFAIK.

 

[Yasar_TR]

According to news coming in from media sources RR have not really given up on an Adaptive Cycle Engine. In fact it has it in its programme going forward. But seeing what has happened with F35 whilst being part of the initial development, and what problems it is still living with, they have decided to put it as a retro fitting idea for next iteration of the Tempest. For the first iteration they will play it safe.

Integrating an ACE to a plane is not an easy task. This is a totally new technology that will have to be integrated in to a platform that has been primarily designed to be flown with turbofan engines.

Integrating an adaptive cycle engine (ACE) into a jet aircraft is difficult due to the engine's inherent design complexity. ACE features unique operational components such as Core-Driven Fan Stages and mode selection valves with variable area bypass injectors.
It is all very well firing and testing these engines on their own. But having to integrate them to a flying jet fighter in real life is another story. Ensuring all components are performance-matched across the entire flight envelope for a plane is a major engineering challenge and improper matching can lead to instability and/or efficiency problems.
Thermal management of the ACE’s third stream in to the plane’s specific architecture is a challenge in it’s own right. Engine's size, shape, and airflow requirements differ from conventional engines and will require airframe modifications not normally expected. Ace’s demand for airflow, changes significantly across modes and will require inlet and exhaust matching adjustments not found in conventional engines. A plane flying with them has to be adjusted to accommodate it all, seamlessly.

Taking all this in to consideration, rather than half flying a plane with an ACE, RR is going along with a safer route of a turbofan that is few steps ahead of it’s competitors as turbofans go. Especially the timeline they they have set for themselves it is the logical route.

Tempest will have special composite structural surfaces that will rely on dynamic stealth rather than coating. It will rely on heavy and powerful EW for stealth as well as its shape without detracting from agility and manoeuvrability. According to a BAE official it will be the first UK jet fighter that could fly transatlantic without needing refuelling. It should be able to carry up to 10000lb of munitions.

Here is an interesting article on 6th gen jets

What makes a fighter jet 'sixth gen' and why it matters

Sixth-gen fighters are being built for the wars of the future, wars that will rely more on stealth, sensors, and long-range weapons.

interestingengineering.com