Continued from here:
http://defenceforumindia.com/forum/...m-combat-aircraft-hal.36/page-69#post-1056717
Because Nuron has 0.8 by pass ratio engine, not every UCAV in the world has to have bigger by pass ratio engine!!
So no need to change anything on K-9 to fit into AURA.
by pass ratio plays no part in UCAV engine selection.
No need to change innards or exxards(???) of K-9 to fit it into AURA.
All we need is good enough thrust to weight ratio, nothing more.
This has got nothing to do with how others have done it. It has everything to do with how it can be done, with lesser risks and in the time the article is required. The French are only foreigners. Not idiots. Well mostly.
Check out this video at 1:09 minutes to see how a K-9 class engined aircraft optimized for transonic flights has to fly doing chase duty for a nEUROn optimized for subsonic flights. The respective angles of attack ie.
If this kind of planform could have flown past Mach 1 then the world would have done it by now. This B-2 kind of planform is meant for easier on the engines subsonic flights ideally using flattened nozzles for LO. From the front optimized for S &/or L-Band stealth. Will also carry a lot of fuel and warload. And its not going to go beyond Mach 1 in any useful manner then there is no need for an AB. That is obvious. But if you lose the AB then what else can be done to make it all buy-able for IAF. Which is the real goal. Also the real Vulnerable Point. And IAF has just learnt from its import vendors something like Life Cycle Costing. I hope you get the drift. The Brits give 'Soverign Capability' as one of the reasons for going into Taranis program, even though they could simply have bought things from Americans or French, their NATO partners. But then IAF has much more important things to do. Anyways people would just love to get into your programs. Even the nEUROn has a lot of American COTS tech and a Brit engine. MTCR stops not just the engines also the other 'dual use' items if they are meant for 500/300 missiles/UCAVs.
OTOH without COTS items the development phase of AURA is also likely to go way up. So its not like we don't have a self interest in that MTCR either. You have already seen how a Radome and IFR, COTS items are being played with.
Off course K-9 can be ported to AURA. You just have to come prepared for what you are attempting. In fact nEUROn was not even supposed to be there. Frenchies wanted a twin engined, bomb truck. Grand Duc is what they called it. Grand Duc went away and nEUROn came in because of pressure of the collaborators - Swiss and Swedes. Pressure of the Collaborator is a real life thing.
Coincidentally AURA looks a lot in the same category as nEUROn (image above in this thread). K-9 minus its AB, will give ~50 KN while Adour 951 gives around 44 KN. The extra power should enable better payload.
The French also wanted to produce another UCAV capable of going as high as 1.6 machs and as low as ~120 knots.
https://en.wikipedia.org/wiki/Dassault-Sagem_SlowFast. Looked nothing like nEUROn. This obviously would have required a After Burner enabled engine. K-9 should fit right into such a thing without any changes.
However AURA currently looks a lot like nEUROn and others in the same class. All of which have the same kind of engines, tweeked from K-9 classed engines.
My case is not about whether K-9 can go into AURA. Its about a new import opportunity. Remains to be seen what ultimately gets imported.
