According to the Firing Manual you can select UPR, K, TT, I87V.
PS: checking with several FCO's
There is a bit difference between selecting and executing... (as automatic switching in T/T when target starts to dive)... As D and P are different because of the missiles, and same for all mentioned methods - I think that system uses only one of them, no matter of selection...
The table above shows target altitude Hc=0.1km and max engagement range Dt=24km.
You cannot engage target at H=100m at 24km distance with TT method. With TT if the target is at 24km, minimum altitude is 1km!
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