So suppose your Radar is in the Off mode
And if the opposite plane has its Radar on ; he will detect you ; but you cant detect him
unless you have an IRST
So what will you gain by keeping your radar off ?
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Regarding the Landing Gear ; you mean to say that we cant rectify the problem in MK 1A
Usually, during he mission, the Radars are kept on Standby Mode, not off mode.
If the mission is inside the enemy area, it would be dangerous to turn on Radar, because the Enemy would detect it passively, and you will give away your position. Now that's why now the shift is to the LPI Radar aka which can be used actively but don't scattered your radar radiation too much.
By keeping the radar in standalone mode helps in avoiding your detection, and the updates are provided by the Air superiority fighter plane, which usually flies in high level. Our DPSA Jaguar IS was only equipped with IRST, and no radar at all, and it had proved its metal in Gulf war too.
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Regarding the Landing Gear ; you mean to say that we cant rectify the problem in MK 1A
Unfortunately Yes, and I think, it could only be rectified in MK-2 irretation. One this is to be noted, that for the landing gear in Tejas Marginal Steel was used which have high strength, but also very heavy. If the suitable steel could be used, we could shelved some wt. There are many areas where we can reduce the wt. e.g removal of the drop wt from the nose of the tejas to keep the C.G of the aircraft.
@MilSpec is expert in this, he could explain much better.
So suppose your Radar is in the Off mode
And if the opposite plane has its Radar on ; he will detect you ; but you cant detect him
unless you have an IRST
So what will you gain by keeping your radar off ?
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Regarding the Landing Gear ; you mean to say that we cant rectify the problem in MK 1A
When you go inside the enemy are, you are not in search of the enemy airplane to do dogfight with them, rather you go there to fulfill your mission, and best is to avoid any clash.