Anyone notice that the LCA's store stations are huge?

[conworldus]

See this
http://api.ning.com/files/oFtLPtmkB...7hmOejydhKewSg/AIR_LCA_Tejas_Underside_lg.jpg

and here is J-10
http://asiadefence.files.wordpress...._combat_aircraft_chinese_air_force_002_ar.jpg

Eurofighter
http://www.procyon-design.co.uk/Images/defence5.jpg

 

[RobbieS]

See this
http://api.ning.com/files/oFtLPtmkB...7hmOejydhKewSg/AIR_LCA_Tejas_Underside_lg.jpg

and here is J-10
http://asiadefence.files.wordpress...._combat_aircraft_chinese_air_force_002_ar.jpg

Eurofighter
http://www.procyon-design.co.uk/Images/defence5.jpg

Does that impact performance/efficiency? I am asking as I do not know myself.

 

[conworldus]

Does that impact performance/efficiency? I am asking as I do not know myself.

They make the plane heavier, and they don't really contribute teo aerodynamics.

 

[graphican]

They make the plane heavier, and they don't really contribute teo aerodynamics.

In my opinion they will make the plane more stable in the air as they are parallel to the length of plane and air passing through them will be divided into 6 virtual channels. So those hangers while staying under the delta wing might be serving purpose similar to that of tail fin. Also note another thing that bottom side of LCA's engine is squarish and that shape will be helping to make those air-channels. If this is true, LCA would be less agile and less-maneuverable than other delta-wing designs.

By the way, has somebody seen maneuverability of LCA? I have seen it rotating around its cross-sectional axis but haven't seen anything really impressive so far. Please share some video of that if you around.

 

[Dark Angel]

In my opinion they will make the plane more stable in the air as they are parallel to the length of plane and air passing through them will be divided into 6 virtual channels. So those hangers while staying under the delta wing might be serving purpose similar to that of tail fin. Also note another thing that bottom side of LCA's engine is squarish and that shape will be helping to make those air-channels. If this is true, LCA would be less agile and less-maneuverable than other delta-wing designs.

By the way, has somebody seen maneuverability of LCA? I have seen it rotating around its cross-sectional axis but haven't seen anything really impressive so far. Please share some video of that if you around.

Tejas has relaxed static stability

In aviation, relaxed stability is the tendency of an aircraft to change its attitude and angle of bank on its own accord. An aircraft with relaxed stability will oscillate in simple harmonic motion around a particular attitude at an increasing amplitude

The latest generation of fighter aircraft often employ design elements which reduce stability to increase maneuverability this is where Relaxed stability comes into picture

 

[Dark Angel]

Awesome video

 

[dbc]

 

[Valiant_Soul]

By the way, has somebody seen maneuverability of LCA? I have seen it rotating around its cross-sectional axis but haven't seen anything really impressive so far. Please share some video of that if you around.

Not that it does anything close to SU-30 or Typhoon...but here is what it does and what has been filmed so far.

 

[conworldus]

Not that it does anything close to SU-30 or Typhoon...but here is what it does and what has been filmed so far.

YouTube - LCA Tejas flying display Aero india 2009

Yeah I have seen this video quite some time ago. The turn rate seemed a bit slow comparing to other fighters. Maybe it is because the engine is still underpowered. The 3/4 of the loop (LCA was already vertical when the loop video started so I count as 3/4) shown the video took 17 seconds.

Anyways, insofar I have not found any other same gen jets with such large storage station. I highly doubt that it serves any aerodynamic purposes, though, because the stablization job belongs to the tail fin. I just don't see the point of dividing air into different channels. Also it increases front surface area, which increases air resistance and decreases stealth.

I also wonder if they are detachable... hm...

 

[Trisonics]

Can any weapon (size, make) hang from any station? If no, that may be it. A test bed for all types of weapons. They are all still prototypes, lets wait and see ...

 

[x_man]

Anyone notice that the LCA's store stations are huge?

Yes I noticed that they are huge, but these are NOT store stations.

These are the covering panels for the hinges of elevon - wing attachments. A hard point may extend to them, but these panels cannot be used directly to put stores on. You will notice such panels ( in different shapes and sizes) on almost every tail less delta aircraft e.g. all models of Dassault Mirage family, Gripen, Eurofighter and even on Concorde. Have a look at the below pics, can you spot such hinges?



or here



or here as well

In aircrafts that do not have a separate elevator for the pitch movement, a single control surface known as Elevons ( elevator+ ailerons) is used for movements in both roll and pitch.And such strong panels/hinges are required for the elevons.

Hope it clarifies...

 

[conworldus]

Yes I noticed that they are huge, but these are NOT store stations.

These are the covering panels for the hinges of elevon - wing attachments. A hard point may extend to them, but these panels cannot be used directly to put stores on. You will notice such panels ( in different shapes and sizes) on almost every tail less delta aircraft e.g. all models of Dassault Mirage family, Gripen, Eurofighter and even on Concorde. Have a look at the below pics, can you spot such hinges?



In aircrafts that do not have a separate elevator for the pitch movement, a single control surface known as Elevons ( elevator+ ailerons) is used for movements in both roll and pitch.And such strong panels/hinges are required for the elevons.

Hope it clarifies...

Thanks man now I see. But if this is only used to cover the hinge, then the LCA must have GIGANTIC hinge! What's the advantage of having such huge hinge anyway?

 

[conworldus]

I was mistaken because I saw missiles loaded on its extended hardpoints before.

Okay, but these hinges are GINORMOUS!

 

[hboGYT]

It's likely because they can't make it any smaller. They are limited by their machining precision, worksmanship and experience in the aviatio field.

 

[sathruvinasakh]

It's likely because they can't make it any smaller. They are limited by their machining precision, worksmanship and experience in the aviatio field.

OOO Boy ,dont prove yourself that you a nuts.

They are called as hinge caps.

Such curved ones will be used only if the aircraft is flying with no stores.

when have carry to weapons,weapon pylons will replace these hinge caos.

in the past post there a rafale you see
in the centre pylon of each wing ,hinge cap is replaced by pylon and rail.
think,since LCA much smaller than all past delta winged designs the arrangement appears more clumpsy compare to others.
definitely nothing wrong with design/machining.
you need look at a weaponised version to clear your doubts or atleast take a small aeronautical course