27ET missile...???

[m1tp2king]

OK. if I use my radar to lock on to a target, and then I fire a 27ET missile (thermal) can I remove the lock on the target and the missile will home onto the target, because its a thermal missile.

thanks.

[cosmicdoubloon]

Yes, as long as the ET has an IR lock on your target you can remove any radar lock as it doesn't affect the missile's guidance. All IR missiles are fire and forget, so as soon as they leave your plane they guide themselves to target (or a flare...)

[m1tp2king]

Thanks. How do I achieve an I R lock???.

[cosmicdoubloon]

Use any of the close range missile modes if you're within 10 miles (keys 3-6 by default, depending on which mode you want to use). Alternatively, use EO mode in BVR by going to BVR mode (2), and then clicking O. Anything you lock in that will be an IR lock but beware, it does not IFF unless you also use radar!

[Slutcher]

Use any of the close range missile modes if you're within 10 miles (keys 3-6 by default, depending on which mode you want to use). Alternatively, use EO mode in BVR by going to BVR mode (2), and then clicking O. Anything you lock in that will be an IR lock but beware, it does not IFF unless you also use radar!

 

Not completely correct. As long as you get an LA(without overriding) while selecting the ET, that means the missile seeker has acquired the target and the missile is ready to be fired. Whether the lock was achieved by Radar or EOS does not matter-As the only thing they do is tell the seeker where to look at, or in the other word, slave the seeker to the contact. So as long as you get the LA, the missile will track the target and is fire and forget.

Edited October 30, 2017 by Slutcher

[Alfa]

^^ Thats also what he said :) .

 

..it does not IFF unless you also use the radar.

 

which is correct....IFF as in "Identify Friend/Foe".

[dooom]

i would only add that i tend to use WVR IR targeting almost exclusively with the ET as lighting up the Radar will typically highlight to the world where you are and that you are a threat. Its a quick way to invite am AIM120C your way...

[WildBillKelsoe]

the thermal guidance is not dependent on radar operation. R/ER variants are radar guided. R-73/R-27T/ET are thermally guided.

[Flow]

Does the R-27ET depend on the plane's guidance for initial navigation and then terminal navigation is with onboard thermal sensor ?

That would mean it requires a lock in order to close in on the target, and then becomes autonomous.

[feefifofum]

It's autonomous as soon as it comes off the rail.

[WildBillKelsoe]

Does the R-27ET depend on the plane's guidance for initial navigation and then terminal navigation is with onboard thermal sensor ?

 

No. Thermal guided weapons can intercept a target not previously locked by IRST if it is fired in predicted target path in such a way for seeker to pick up said target on its own line of sight.

 

there was a tacview video of a guy who performed cobra under target incoming, fired an IR missile at the outro of cobra just as he was getting level again, the missile circled high above him and when seeker picked the target behind him, it followed.

Edited November 8, 2017 by WildBillKelsoe

[Flow]

No. Thermal guided weapons can intercept a target not previously locked by IRST if it is fired in predicted target path in such a way for seeker to pick up said target on its own line of sight.

 

there was a tacview video of a guy who performed cobra under target incoming, fired an IR missile at the outro of cobra just as he was getting level again, the missile circled high above him and when seeker picked the target behind him, it followed.

 

Good to know, thank you.