5 kills. F4E in Linebacker II.
If I remember correctly I got the first kill with a Sparrow, extended out of the fight and then another Sparrow kill when I re-engaged.
Then I ended up in a dogfight where I salvoed two pairs of Sidewinders for another kill.
Extended again and salvoed two Sparrows this time because the firing solution wasn't ideal, fourth kill.
Fifth kill was guns, and left me very marginal on fuel.
Then home for tea and biscuits
I try to deal with the 17's using Sparrows ( if I can ) because they are a lot more difficult for me ( personally ) to deal with in a dogfight than the '21 - I'm doing the right thing by using the vertical, but too often I just end up in a stalemate that has eaten way too much of my fuel. My latest tactic is to knock it off after a very short while if I'm not making any headway against a '17 and go and find someone easier to kill