gogbot
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HAL Tejas | Updates, News & Discussions
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farhan_9909
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I thought LCA uses AESA radar
Is it comparable to the Kj-7 radar of Jf-17?
its range is nt mention in the wiki
can someone tell me its range
Is it comparable to the Kj-7 radar of Jf-17?
its range is nt mention in the wiki
can someone tell me its range
shiningindia
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you r administrator and u r trolling... i know now u banned me. but i never expected that u tell any thing without any proof.
jagjitnatt
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Multi-Role Electronically Scanned Array (MESA) Surveillance Radar
farhan_9909
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satishkumarcsc
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No it is a mixture of both..the array is steered mechanically for different roles unlike the PESA and AESA use electronic power variations to steer the beam.
KEETARP
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MESA is different thing altogether , and we only see it on Boeing's Wedgetail 737 AEW platform , recently handed over to RAAF.
What advantage it gives is apart from Electronically software controlled partition a mechanical movement in azimuth and side covers to give a 360 coverage , thats why its a AWACS platform radar.
Now this Tejas radar is mechanically moved and not electronically sterred , its a standard gymballed & mechanically steered planar type of radar with inputs from EL2032 for Processing and SAR mode while antennae and software are from DRDO. Much like what F16 Block 30-52 have.
Its nither phased array nor ESA - steering is purely mechanical.
You guys will ask then how the direction and phase of the radio source is controlled its through waveguides .
Here is pic of such waveguide behind f16
While in ESA sytem phase control is by Wave-shifters or phase shifters .
Here is working of Phase - shifter in an ESA radar.
What advantage it gives is apart from Electronically software controlled partition a mechanical movement in azimuth and side covers to give a 360 coverage , thats why its a AWACS platform radar.
Now this Tejas radar is mechanically moved and not electronically sterred , its a standard gymballed & mechanically steered planar type of radar with inputs from EL2032 for Processing and SAR mode while antennae and software are from DRDO. Much like what F16 Block 30-52 have.
Its nither phased array nor ESA - steering is purely mechanical.
You guys will ask then how the direction and phase of the radio source is controlled its through waveguides .
Here is pic of such waveguide behind f16
While in ESA sytem phase control is by Wave-shifters or phase shifters .
Here is working of Phase - shifter in an ESA radar.
shiningindia
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what a great news. converting LCA into UCAV. now they want billion of dollar for developing it. they already spend $3 billion to develop LCA and still underdevelopment. corrupted indian government.
KEETARP
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Can be done , aerodynamic design is quite Robust and Uplift force control wont be a problem , considering auxillary control surface ( LEVCONS/LERX) has been planned for Tejas.
This unstable design has only to be tinkered to give a relatively more stable design keeping same FCS which is of new gen if and if new Fly-by wire is not planned.
AI experience will come in handy considering AI is planned for Pak-FA
This unstable design has only to be tinkered to give a relatively more stable design keeping same FCS which is of new gen if and if new Fly-by wire is not planned.
AI experience will come in handy considering AI is planned for Pak-FA
Tejas-MkII
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2 flight of LSP-3 
kish
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sudhir007
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Engine Trouble may put Mig-27 for early retirement idrw.org
Indian Air force is considering retiring major fleet of mig-27 by 2015, as per reports almost half the squadrons strength will be “stood down” by 2015 .Fatal accident which have taken place recently all has been attributed to defects of R-29 engines, initial air force investigation has found major flaw in fourth line at the overhaul stage which is done by Hindustan Aeronautics limited.
Poor serviceability and design defects had forced IAF to ground all Mig-27 Squadrons after a Squadron leader was killed in February crash, sudden loss of power in low pressure turbine blades of the aircraft was reason behind the crash.
Mig-27 along with Jaguar aircraft still forms a major chuck of Strike fleet of Indian Air force; recently around 40 aircrafts were upgraded to Darin-II standards which sport a new navigation-and-attack avionics package, electronic warfare suite developed by the state-owned Defence Research & Development Organisation.
Initially Darin-II upgrade package also included Engine upgrade, a single modern AL-31 engine that powers the Su-30 MKI was supposed to power Mig-27, and a single Mig-27 from IAF fleet was integrated and successfully tested in Russia by MiG-MAPO group, the original manufacturers of the MiG series of aircraft with an AL-31 Engine but for some reason the plan never materialized.
It might come has a boom to Tejas MK-1 Program since Air force might consider ordering more Tejas Mk-1 from the current order of 40 jets due to early retirement been given to Mig-27 , while air force will maintain other fleet of Mig-27 with it till end of 2020 .
Indian Air force is considering retiring major fleet of mig-27 by 2015, as per reports almost half the squadrons strength will be “stood down” by 2015 .Fatal accident which have taken place recently all has been attributed to defects of R-29 engines, initial air force investigation has found major flaw in fourth line at the overhaul stage which is done by Hindustan Aeronautics limited.
Poor serviceability and design defects had forced IAF to ground all Mig-27 Squadrons after a Squadron leader was killed in February crash, sudden loss of power in low pressure turbine blades of the aircraft was reason behind the crash.
Mig-27 along with Jaguar aircraft still forms a major chuck of Strike fleet of Indian Air force; recently around 40 aircrafts were upgraded to Darin-II standards which sport a new navigation-and-attack avionics package, electronic warfare suite developed by the state-owned Defence Research & Development Organisation.
Initially Darin-II upgrade package also included Engine upgrade, a single modern AL-31 engine that powers the Su-30 MKI was supposed to power Mig-27, and a single Mig-27 from IAF fleet was integrated and successfully tested in Russia by MiG-MAPO group, the original manufacturers of the MiG series of aircraft with an AL-31 Engine but for some reason the plan never materialized.
It might come has a boom to Tejas MK-1 Program since Air force might consider ordering more Tejas Mk-1 from the current order of 40 jets due to early retirement been given to Mig-27 , while air force will maintain other fleet of Mig-27 with it till end of 2020 .
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