Indian Military News, Reports, Data, etc.

sunnymaxi

Major
Registered Member
Depends on what engines you are talking about. There were long lived Soviet and Russian engines. For example the NK-12 and D-30 series were notoriously reliable.

In fighter engines the AL-41 is about as reliable as US engines. Of course India insists on keep using the AL-31FP and then complains about short engine life.

People forget how notoriously unreliable the PW engines in the F-16 and F-15 used to be. That got fixed eventually. Well, so has AL-31 series engine lifetime increased in later models.
177S recently revealed in Zhuhai air show has 6000 hours service life.. which consider highly reliable. can be comparable to modern western Engines.
 

sheogorath

Colonel
Registered Member
It's one thing to fulfill existing contracts. But setting up a new production for India, and implementing all the changes that India is obviously going to demand? That might not turn out very well.
India allegedly had its own RD-33MK production line, so it shouldn't be as much of an issue if there is anything left of it.
 

Gloire_bb

Major
Registered Member
They didn't go for Russian engines because they thought that American ones were "better". India has an underlying attitude that Western technology is just better than Russia tech, and so they'll go for the former whenever there's a choice. It's why they made the insane choice to go with 5.56mm ammunition for the INSAS.
Well. F404 is objectively a more modern engine base than RD-33, especially since RD-33 was designed for austere field use, which is the last thing light multirole fighter (badly dependent on p:w and fuel use) needs.
But RD-33, for all it's relative "reds" in comparison(and there is a lot), is, 1st, good enough. And it's reliably available. Not considering which after quite recent american sanctions back in late 1990s was something in-between criminal neglect of duty and very real treason.
Furthermore, 2nd. it's absolutely legal to take RD-33 in any direction you need, which both Russia, and more importantly, China did. RD-33 is kinda meh? Sure. Didn't prevent WS-13/WS-19/WS-21 line (which, it appears, is more succesful that WS-15, despite later start and likely lower priority - speaking about "bad base") from emerging.
 

Lethe

Captain
So far as I can see there are no official, specific claims made about the readiness of the birds pictured. The lack of engines is hardly surprising and is not a HAL problem, but a GE problem that is in the process of being resolved. The question is if we will actually see deliveries of Mk. 1A aircraft ramp up as those engines arrive, or if other bottlenecks remain. Suggestive in that respect are the comments from Air Chief Marshal AP Singh six months ago at Aero India 2025, where he said that HAL was falling short on Mk. 1A production irrespective of the engine issue:
Please, Log in or Register to view URLs content!
(switch to original audio track).

I have to ask, with how much India buys russian stuff, couldnt they have gotten some russian engines for the tejas instead of GE, they be delivered more easily and atleast not get cut-off incase relations get shaky

India doesn't want to become overly reliant upon Russia any more than it wants to become overly reliant upon the United States or any other single vendor nation. That more than 300 Su-30MKI and MiG-29 aircraft currently comprise the bulk of IAF combat airpower has dampened the prospects for further recent and near-term acquisitions of Russian hardware. F404 has been attached to the LCA project for forty years now, well before EJ200 or M88 were viable options. That it survived the experience of the Pokhran II sanctions is both remarkable and questionable, but it did.

For LCA Mk. 2 in particular, alternative engine prospects are also constrained by the weight control issues ADA has had with LCA to date, and the increased range/payload/equipment levels that are targeted for Mk. 2. As such, LCA in both its Mk. 1A and Mk. 2 variants needs as much thrust as it can get, and F414 simply offers more than the other engines in its general weight class. When one considers how laborious each and every stage of the LCA project has proven to be, one can appreciate a reluctance to undertake the additional work that would be required to accommodate an alternative engine. Thus, absent a clear show-stopper like Washington actually embargoing the engines, the tendency is to push forward with the F404 and now F414 pathways on an incremental basis, i.e. progressing from the F404 as the developmental engine for LCA back when it was envisioned that GTRE's Kaveri engine would be powering production aircraft, to having F404 power the entire Mk. 1/1A production series.
 
Last edited:

GiantPanda

Junior Member
Registered Member
India allegedly had its own RD-33MK production line, so it shouldn't be as much of an issue if there is anything left of it.

They also have an AL-31 line for their SU-MKI. If those were of any use, they should have had the Kaveri up and running after 4 decades.

They were never confident enough in the Kaveri to put it on fighter -- even for a test flight.
 

tamsen_ikard

Senior Member
Registered Member
They also have an AL-31 line for their SU-MKI. If those were of any use, they should have had the Kaveri up and running after 4 decades.

They were never confident enough in the Kaveri to put it on fighter -- even for a test flight.
Al-31 is advanced Jet engine. How much of these production lines are actual production and how much is just assembling mostly finished parts?

If India can make an engine like AL-31 from start to finish, that is quite advanced. They can gain a lot of know-how. If Russia transferred technology to that extent then I would find it quite concerning to be honest.
 

gelgoog

Lieutenant General
Registered Member
No one transfers that kind of technology. At best India is making the external shell or the cold section of the engine.
 
Top