Complex sentence: The Tomcats turned home but had to turn around again when the Libyans headed toward the US Carriers once more, after being tracked by the F-14s radars once again the MiGs finally headed home.
Split into simpler sentences: The Tomcats turned home but had to turn around again when the Libyans headed towards the US carriers once more. After being tracked by the F-14's radars, once again the MiGs finally headed home.