TR Attack & Utility Helicopter Programs

Yasar_TR

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T-625 Gökbey Helicoper fitted with new TS1400 engine has performed tests with success says Defence Minister Akar!
 

Combat-Master

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10 TON UTILITY HELICOPTER
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A 10-ton utility helicopter with military configuration suitable for search and rescue and offshore operations will be developed. The helicopter will be designed to meet wide range of operational requirements, and will have a large and high cabin, a rear down-ramp and retractable landing gear.

The helicopter will be designed to carry 20+ personnel, with a maximum speed of 170 knots, and have a range of 1000 km.

10-ton utility helicopter will accommodate advanced avionics and mission systems.

© 2021 Turkish Aviation and Space Industry
 

Cypro

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I will stick with mock-ups and prototypes sorry, 3Ds are confusing.. These two pictures looks like this one:

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While 3D on the website looks more like first design but more detailed uglier version. All of them looks different.. I hope we see a new mockup instead.

I don't think T929 is an urgent need, what if everything changes in 5 year and domestic engine for this size becomes viable. May be 10 Utility Helicopter is urgent need in 5 years but not T929. I wonder how 10 ton will look like after engine change
 
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Zafer

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What is the difference between Kamov and Sikorsky type?
Kamov type is old Russian tech, Sikorsky type is a new tech being introduced. It is still kept secret and they even didn't want to share visuals of the rotor hub. Kamov uses a swash plate with mechanical linkages between the blade roots and the transmission to feather the blades around the rotation path while Sikorsky does not use classic linkages and changes the pitch angle of individual blades separately which allows more fine control of lift generation around the rotation path resulting in a more efficient rotor. It also employs a separate pusher propeller and thus it is way faster. It can maneuver with better agility and can accelerate and stop more quickly like it has brakes.

Sikorsky type is the state of the art with many modern additions other than the propulsion.
 

Zafer

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I don't think T929 is an urgent need, what if everything changes in 5 year and domestic engine for this size becomes viable.
They can simply update the design for more power or even run the hp 3k engine underrated to match the designs. Many helicopters are powered by several different engines along their life-cycles. This is better than not having the helicopter on hand and being out of the game for that class. Turkey is now considered a contender among helicopter makers and we need to fortify our standing to be considered by possible buyers.
 

Khagan1923

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Fuselage changes most likely come from Engine decision more than anything else. My guess is when the first model was presented the idea was to equip it with the 2xT700-701D (2x2000hp) engine which is being license built by TEI for the T-70 project.

Maybe TEI and SSB had hoped they could make a deal to produce the engine for the ATAK-2 project at the time and build them directly in Turkey minimzing production time of each Helicopter while the development of an indigenous 3000hp class engine similar to the T901 is under way to be used on future T929 Blocks and the T925 project.

Most likely through either fear of future export restrictions (Pakistan case with T129) or sanctions(CAATSA) plans changed and TAI and SSB pivoted their gaze to Ukraine for the engines.

And to fit the ukrainian engines changes to the fuselage were necessary. As eastern engines tend to be bigger to their western counterparts.

My question here would rather be in the future when our own 3000hp engine is ready will we see future block have an redesigned fuselage (smaller engine) or would it be smarter to continue using the ukrainian engine for ALL T929 production even after the indigenous engine is ready to save money and time and focus on a new coaxial rotor attack, similar to the Raider X, to slowly replace the T129 in service from 2040+ onwards. Seeing how the T129 is pretty growth limit and the Phase 2 updates already got everything they can from its fuselage.

Ukraine shouldn't make any fuss about exports regarding the engine and honestly if the performance is satisfactory I would see TAI rather focus on new technologies for future Attack and Transport helicopters for the Military and export market.

Of course this all hinges on the plan for the T929 still being the same as 2 year ago, first ones equipped with foreign engines and then at a later date the switch to indigenous engines once it is ready. Now with the ukrainian engines it could change.

For the wing design. I have no idea what TAI is trying to accomplish with it. Both the wing design on the T629 and T929 seem pretty weird to me and having conventional flat wings seems would be better?
 

Anmdt

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