Radar Range Up	S
Radar Range Down	X
Radar on HUD	F11
Select AA Weapon	~
Cycle Targets	Tab
Release Weapon	Trigger or Space Bar
Note: Standard Soviet doctrine is to fire missiles in pairs, one radar guided and one IR guided. This complicates the evasion situation for the target. I suggest you fire an R-77, wait a few seconds and fire an R-73. The target a/c will attempt to evade the R-77 and probably use his afterburners to regain energy after the manoeuver, at which time an incoming R-73 should find a tasty target!

The lock-on diamond flashes when you have a valid lock, however this is no guarantee the missile will hit.

Target type, range and closure rate is shown here.