TR Propulsion Systems

[Yasar_TR]

	PBS TJ100 View attachment 18344	TEI TJ300 View attachment 18345
Compressor Type	Centrifugal	Axial
Outer Diameter	272mm	240mm
Length	625mm	450mm
Weight	19.5kg	34kg
Thrust	1250 N	1300 N

PBS-TJ100 has a centrifugal compressor. These type of engines are old school engines. No more used but in turboshafts and small turbojets. It is however, more efficient where single compressor stages are used. A single centrifugal compressor stage can produce 3-4 times more compression than its axial counterpart. To make up for this, axial compressors have multiple stages. (It is much harder to apply more stages to a centrifugal compressor.)
TJ-300 has axial flow compressor. Somehow our engine is almost twice as heavy. This can be attributed to using multiple axial compressor stages, whereas the PBS engine may only have a single compressor stage!

 

[Saithan]

Turkey’s 1st local medium-range missile engine breaks world record

Turkey’s first domestically designed Medium Range Anti-Ship Missile (MRASM) air-breathing engine TEI-TJ300 broke a world record by reaching 1,342 newtons...

www.dailysabah.com

 

[Anmdt]

	PBS TJ100 View attachment 18344	TEI TJ300 View attachment 18345
Compressor Type	Centrifugal	Axial
Outer Diameter	272mm	240mm
Length	625mm	450mm
Weight	19.5kg	34kg
Thrust	1250 N	1300 N

PBS TJ150

Designed for experimental aircraft, powered gliders, target drones and other unmanned vehicles.

www.pbsaerospace.com

TJ-150 with similar dimensions but 1500 N thrust.
IMO, in no time TEI will get to 1500 N , who knows.

 

[Yasar_TR]

PBS TJ150

Designed for experimental aircraft, powered gliders, target drones and other unmanned vehicles.

www.pbsaerospace.com

TJ-150 with similar dimensions but 1500 N thrust.
IMO, in no time TEI will get to 1500 N , who knows.

Production of TJ-300, if you listen to Prof Aksit, was the result of TEI, experimenting on an axial flow engine. They knew they would be asked to produce an axial flow turbofan engine soon. So they wanted to produce a small engine as a trial run. It happened to fit the bill for an engine for medium range anti ship missile. There is a TJ400 somewhere along the line as well!

 

[Alpagu]

Missile engine TJ300 breaks world record
TJ300 broke a world record in its class with its 1342 newton thrust
Can work at high speeds up to 90 percent of the speed of sound
Can be used in air, land and sea systems

 

[Nutuk]

jet powered heavy glide bombs with ranges of >300km would be very nice

 

[Hexciter]

PBS TJ100 is a lot lighter despite being a larger engine.

No! TJ300 is fatty for her class.

 

[Combat-Master]

PBS TJ100 is a lot lighter despite being a larger engine.

PBS TJ100 uses a lot less material, 1 centrifugal compressor and 1 high pressure turbine

TEI TJ300 has 4 axial compressor stages, 3 stator vane and 1 high pressure turbine - This engine has so much more growth potential.

 

[Fuzuli NL]

PBS TJ100 uses a lot less material, 1 centrifugal compressor and 1 high pressure turbine
View attachment 18351

TEI TJ300 has 4 axial compressor stages, 3 stator vane and 1 high pressure turbine - This engine has so much more growth potential.
View attachment 18353

Thanks mate!

 

[Zafer]

PBS TJ100 uses a lot less material, 1 centrifugal compressor and 1 high pressure turbine
View attachment 18351

TEI TJ300 has 4 axial compressor stages, 3 stator vane and 1 high pressure turbine - This engine has so much more growth potential.
View attachment 18353

A centrifugal compressor doubles the air pressure; an axial compressor multiplies the pressure by 1,2 . When you have 4 compressor stages your pressure becomes 1.2^4 = 2.0736 times the initial air pressure. A four stage axial builds more pressure than a one stage centrifugal compressor.

 

[Combat-Master]

Ermm hmm... Did TEI just update the TEI-TJ300 specs ?

Max thrust is now 1,400N

https://www.tei.com.tr/uploads/docs/1599483296_teitj300turbojetengine.pdf?

 

[Yasar_TR]

PBS TJ100 uses a lot less material, 1 centrifugal compressor and 1 high pressure turbine
View attachment 18351

TEI TJ300 has 4 axial compressor stages, 3 stator vane and 1 high pressure turbine - This engine has so much more growth potential.
View attachment 18353

This is normal. As I explained in my previous post, TJ300 was produced as a trial for an axial flow jet engine prior to a larger turbofan, TEI knew they were going to be asked to produce for TFX.

 

[azaher77]

https://twitter.com/i/web/status/1383425862381363200

Dr Mahmut Faruk Akşit:
"The number of T700-TEI-701D engines we have produced so far has exceeded 35."

 

[Combat-Master]

Chairman of the Board of Directors and General Manager Prof Dr Mahmut Faruk Akşit:

"Our TEI-TJ300 engine is capable enough to propel a 500 kg missile or 1,300 kg aircraft comfortably."

https://twitter.com/i/web/status/1383700700643794955

 

[Yasar_TR]

Chairman of the Board of Directors and General Manager Prof Dr Mahmut Faruk Akşit:

"Our TEI-TJ300 engine is capable enough to propel a 500 kg missile or 1,300 kg aircraft comfortably."

https://twitter.com/i/web/status/1383700700643794955

They could develop from this very core, a turbofan which would be more economical and give more thrust. Two of those engines could fly a high subsonic Jet UAV. After all the main object of the TJ-300 exercise was to test themselves to see how good an axial flow jet engine they could make, prior to building a turbofan.
That would also open the road for our own turbofan powered “Gezgin” cruise missile.

 

[Combat-Master]

They could develop from this very core, a turbofan which would be more economical and give more thrust. Two of those engines could fly a high subsonic Jet UAV. After all the main object of the TJ-300 exercise was to test themselves to see how good an axial flow jet engine they could make, prior to building a turbofan.
That would also open the road for our own turbofan powered “Gezgin” cruise missile.

KTJ-3200 is also an axial flow jet engine with 2x the thrust output of a TJ300. UAVs with single engine definitely the most cost effective solution here.

 

[Yasar_TR]

KTJ-3200 is also an axial flow jet engine with 2x the thrust output of a TJ300. UAVs with single engine definitely the most cost effective solution here.

Can you trust Kale to produce a turbofan version of that engine? It took them how many years to produce KTJ-3200? Still not in full service! Also KTJ-3200 is a throw-away engine. It’s inner parts won’t last if used as a UAV engine. We need TEI’s expertise for the UAV engine.
You are correct single more powerful engine is the economical route. But if you haven’t got it? The twin engine is a solution! (Aksungur and Akinci example)

 

[Combat-Master]

KALE KTJ-3200

-Alternator
-Fuel Metering Pump
-Pyrotechnique Igniter
-Engine Control Unit

 

[Combat-Master]

Can you trust Kale to produce a turbofan version of that engine? It took them how many years to produce KTJ-3200? Still not in full service! Also KTJ-3200 is a throw-away engine. It’s inner parts won’t last if used as a UAV engine. We need TEI’s expertise for the UAV engine.
You are correct single more powerful engine is the economical route. But if you haven’t got it? The twin engine is a solution! (Aksungur and Akinci example)

KTJ-3200 is in serial production. Integration tests are being carried out on various air-breathing Turkish missiles. KALE has gained alot of experience and are developing an APU version of KTJ-3200, which indicates the engine is capable of long operation. As these engines are approved for strategic missiles, yes - I trust Kale.

 

[Oublious]

Can you trust Kale to produce a turbofan version of that engine? It took them how many years to produce KTJ-3200? Still not in full service! Also KTJ-3200 is a throw-away engine. It’s inner parts won’t last if used as a UAV engine. We need TEI’s expertise for the UAV engine.
You are correct single more powerful engine is the economical route. But if you haven’t got it? The twin engine is a solution! (Aksungur and Akinci example)

You forget one thing, Kale didn't have the machine like TEI. TEI did have a lot of equipments from partners(you name it) and Kale do not have. Thats why it take them so long not because they couldn't. If you compare it like that Kale is more capable then TEI.