LCA TEJAS MK1 & MK1A: News and Discussion

[Prashant12]

IFR
2 x R-73 CCM
2 x Derby BVRM
1 x Litening Pod

http://indiandefenceindustries.in/sites/default/files/HAL Tejas-1-2.jpg

 

[Shashwat]

^^ FTFY



Thats a lethal combo.

30 char

 

[Bleh]

IFR
2 x R-73 CCM
2 x Derby BVRM
1 x Litening Pod

http://indiandefenceindustries.in/sites/default/files/HAL Tejas-1-2.jpg

^^ FTFY



Thats a lethal combo.

30 char

I've often seen Tejas carrying Derby without its front fins, like the above photo.. why is that?

And what happened to Python-5?

Also, carrying only 4 AAMs isn't impressive at all. That's Mig-21 standard. Why does Tejas IAF almost never carries any centreline drop-tank leaves that hardpoint empty? (Btw was this real or mockup?)

...Instead it could carry 2 (or in future, more) extra BVR missiles on that strong pylon, like this LCA Navy display from AI17.

 

[patriots]

I've often seen Tejas carrying Derby without its front fins, like the above photo.. why is that?
View attachment 38995And what happened to Python-5?

Also, carrying only 4 AAMs isn't impressive at all. That's Mig-21 standard. Why does Tejas IAF almost never carries any centreline drop-tank leaves that hardpoint empty? (Btw was this real or mockup?) View attachment 39001 ...Instead it could carry 2 (or in future, more) extra BVR missiles on that strong pylon, like this LCA Navy display from AI17. View attachment 39003

Tejas can carry 4 bvrs ..2 ccms and a drop tank ..
4 bvrs in inner pylon....
2 ccms in wing tip...and a drop tank on centre

 

[rohit b3]

Tejas can carry 4 bvrs ..2 ccms and a drop tank ..
4 bvrs in inner pylon....
2 ccms in wing tip...and a drop tank on centre

Dont forget tandem pylons. Each tandem pylon can hold 2 CCMs. In total Tejas would be able to carry 4 x BVR, 4 in CCM and a drop tank in Air- to -Air configuration.

 

[Armand2REP]

And what happened to Python-5?

They had to ditch it because it couldn't pass the carry tests as it caused significant vibration.

 

[Bleh]

Tejas can carry 4 bvrs ..2 ccms and a drop tank ..
4 bvrs in inner pylon....
2 ccms in wing tip...and a drop tank on centre

It can, but does it?... Why has noone seen one in that configuration (except that LCA Navy display in Aero India 2017)?

It's range will be reduced as the centreline drop-tank is only 750lt (don't know about the new supersonic one) for a CAP it'll allow 4 BVRs, upto 8 BVR+CCM in Mark1A.

The two 1200lt wing-tanks config may be used for missions where range is the priority, but that always has the central-pylon left empty for some reason, allowing it to carry only 2 BVRs or LGBs.

 

[patriots]

It can, but does it?... Why has noone seen one in that configuration (except that LCA Navy display in Aero India 2017)?

It's range will be reduced as the centreline drop-tank is only 750lt (don't know about the new supersonic one) for a CAP it'll allow 4 BVRs, upto 8 BVR+CCM in Mark1A.View attachment 39005
The two 1200lt wing-tanks config may be used for missions where range is the priority, but that always has the central-pylon left empty for some reason, allowing it to carry only 2 BVRs or LGBs.View attachment 39009

Center line drop tank with 1200 ltr drop tank already tested

May be said by indranil ....

 

[Prashant12]

Evolution of LCA Mk2 design over the years (Air force version).

 

[patriots]

Evolution of LCA Mk2 design over the years (Air force version).

Bdw Tejas weight and..... payload capacity is increased...than ... previous designs.....

With the same engine....

 

[Bleh]

Bdw Tejas weight and..... payload capacity is increased...than ... previous designs.....

With the same engine....

Fuel capacity increase due to length (see the yellow fuselage plugs in diagram) & shape (widened fuselage resulting in larger wingspan ain't are pushed outwards).
Payload has increased due to additional lift from canards... probably better aerodynamics too.

 

[patriots]

View attachment 39028
Fuel capacity increase due to length (see the yellow fuselage plugs in diagram) & shape (widened fuselage resulting in larger wingspan ain't are pushed outwards).
Payload has increased due to additional lift from canards... probably better aerodynamics too.

Bdw....twr ... decreased...........
.....
Hope this won't be an Indian j10......

 

[ram singh तोपची]

so we have bought so many military equipment from USA in recent times my question is has these equipment come with strings attached regarding its usage u i mean when ,where ,how ,and against whom to use ETC can any body shed some light on the matter

 

[Aaj ka hero]

Bdw....twr ... decreased...........
.....
Hope this won't be an Indian j10......

Don't worry, this CAN happen and then again certain IMPORT DRAMA CAN restart again.
But the probability of it right now is only 30 percent seeing everybody right now is happy.
Don't know what will happen in future though although YOU POINTED OUT A THING THAT I WAS EVEN FORGETTING so
Thankyou,
And remember probability of 30 percent.

 

[Bleh]

Bdw....twr ... decreased...........
.....
Hope this won't be an Indian j10......

Don't worry, this CAN happen and then again certain IMPORT DRAMA CAN restart again.
But the probability of it right now is only 30 percent seeing everybody right now is happy.
Don't know what will happen in future though although YOU POINTED OUT A THING THAT I WAS EVEN FORGETTING so
Thankyou,
And remember probability of 30 percent.

Wrong!!!
Payload has increased, fuel-capacity has increased. Empty weight is still near the planned 7000 kg.

Some of the fuel that older Mark2 would have to carry in external tanks, the new MWF can carry inside & free up pylon for more missiles (or fuel) its higher payload allows it to carry. Only effect on T/W ratio would be by weight of extra BVR missiles or external tanks... during cruising, not WVR dog-fight.

 

[uoftotaku]

Also, carrying only 4 AAMs isn't impressive at all. That's Mig-21 standard. Why does Tejas IAF almost never carries any centreline drop-tank leaves that hardpoint empty? (Btw was this real or mockup?) [

4-6 AAM's is a normal standard these days for CAP. Apart from Bison, even the MiG-29UPG also carries only 4 AAMs if it has wing drop-tanks or 6 without (with rubbish combat radius) M2000 originally had 4 AAM load, now upgrade is 6 AAM. Even the Gripen-E is limited to 2 Iris-T and 4 Meteor with a center tank or 2 Iris-T and 5 Meteor with 2 wing tanks.

Re: Center drop tank, it is normal for aircraft to avoid carrying a non-disposable store on center tank. Due to the reduced ground clearance, during landing if there are any complications it can put pilot in a difficult position. Repeated use of a center drop tank also reduces the air frame life as it stresses the critical center of the main fuselage body. Glance around the worl you will rarely see planes on regular flight or patrol duties carrying center tank these days (where used to be common during Cold War) only armed QRA jets routinely carry center tanks

In service, you expect most QRA planes to carry a center tank which they will jettison before getting into WVR combat. CAP birds only carry wing tanks as they are expected to return to base fully equipped (Patrol vs Reaction)

 

[Aaj ka hero]

Payload has increased, fuel-capacity has increased. Empty weight is still near the planned 7000 kg.

So...... you are saying on clean frame T/W ratio is optimum.
And also will this not turn into another f-16 which is fantastic fighting plane(although my favorite is mig-29) and not mirage 2000 which IAF liked always?
Sir, regarding IAF I can't say any definite thing.
Maybe in future they can say we have to replace the engine. (it happens with every aircraft but in IAF case it happens way early maybe this time it will not because of now less development time thanks to tejas mk-1 development )
But if the above point is true then I can't help but think SOME PARTICULAR ENGINE PART-2 is on the cards for our tejas mk-2 .
What I can say is that thrust to weight ratio of a fighter plane with decent amount AAMs must and should be above one.

 

[Bleh]

4-6 AAM's is a normal standard these days for CAP. Apart from Bison, even the MiG-29UPG also carries only 4 AAMs if it has wing drop-tanks or 6 without (with rubbish combat radius) M2000 originally had 4 AAM load, now upgrade is 6 AAM. Even the Gripen-E is limited to 2 Iris-T and 4 Meteor with a center tank or 2 Iris-T and 5 Meteor with 2 wing tanks.

Re: Center drop tank, it is normal for aircraft to avoid carrying a non-disposable store on center tank. Due to the reduced ground clearance, during landing if there are any complications it can put pilot in a difficult position. Repeated use of a center drop tank also reduces the air frame life as it stresses the critical center of the main fuselage body. Glance around the worl you will rarely see planes on regular flight or patrol duties carrying center tank these days (where used to be common during Cold War) only armed QRA jets routinely carry center tanks

In service, you expect most QRA planes to carry a center tank which they will jettison before getting into WVR combat. CAP birds only carry wing tanks as they are expected to return to base fully equipped (Patrol vs Reaction)

Ok, got your point.
Centreline EFT can be problematic if you intend to return & land with it. Why not die strike missions then? I have regular listen Rafale & F-18 with one...

But always why keep the centreline pylon empty!?!?!! Why isn't this one carrying one extra LGB or a BVR?? They're comparatively much lighter.

there is literally only 2 images of Tejas utilising ALL it's pylons. This;

& this;

Going for CAS, could carry another of those in the centre.

...or with a central tank (and/or 2 outer-wing tanks), 4 of those in tandem on each wing. It actually can!

Mig-21/29, Mirage-2000s are yesterday's aircrafts with 4 AAMs... Gripen as you say has atleast 6-7 & that's what Tejas should too.

 

[Assassin 2.0]

Ok, got your point.
Centreline EFT can be problematic if you intend to return & land with it. Why not die strike missions then? I have regular listen Rafale & F-18 with one...

But always why keep the centreline pylon empty!?!?!! Why isn't this one carrying one extra LGB or a BVR?? They're comparatively lighter...View attachment 39033




Mig-21/29, Mirage-2000s are yesterday's aircrafts with 4 AAMs.

Are we going to use F414-EPE for mk2 which Offers up to a 20 percent thrust boost, increasing it to 26,400 pounds (120 kN), giving an almost 11:1 thrust/weight ratio?

And why increase of weight will not effect her maneuverability? Btw i do think tejas mk1a is a very unstable aircraft. I hope mk-2 doesn't become a flying duck like F-16.

 

[patriots]

""MWF has significant L/D improvements throughtout the envelop. Inspite of lower TWR, it will have better transonic acceleration, top speed and STR. The details were in the report that Jay and I wrote.

Obviously, at MTOW, it becomes a bomb truck, just like Gripen E And Rafale. Their TWRs are around 0.6. I don't know where this becomes useful in the Indian context. Our fighter bases are close to the borders. The enemy sits right across the border with good radar coverage. We don't have a France bombing Libya kind of scenario. Also although it may be possible to arm MWF with two Brahmos or two Scalps and two big DTs, it is highly unlikely."

Indranil brf

Sir I quote them bcoz I have zero knowledge.......

Please.. don't scold me.....