In a tank vs plane match, I go with the plane every time.
If the tank is a Wirbelwind, I wouldn't.
ahhh that deadly contraption... I was playing ww2 fighters one time and a friend of my grandfather said that if you are at a little higher altitude and you spot them while they are shooting at other aircraft down low they are easy to deal with.
just have your bombs ready, and go into the dive at the 90 degree angle directly above them... while their attention is drawn to your wingmen, if you do it right and your power is all the way to idle they will not see you or hear you from that angle and he said their guns were not really able to traverse to 90 degrees elevation. bombs away... good kill. he pointed out that the gun crews were poorly protected from machine gun attacks when approaching from 60 degrees above horizontal or steeper and he recommended i try it on the game. i did it worked perfectly.
He showed me the best way for an aircraft to approach and attack a tank... from the rear at a 45 to 60 degree dive angle for bombing him - he wont see you coming, and your bombs stand a greater chance of impacting the soft rear or top armor. even a near miss with a 500 LB HE or GP bomb can seriously damage or disable the tank.
he also showed me how to effectively engage a heavily armed flight of bombers by having one group of fighters intercepting them high above while the other group does high speed deflection shots at them. when you dive at them from above you have a much larger target. each man in the wing goes for the lead bombers in the finger four formation, and dives on them firing at their own targets while passing through the formation at high speed with a steep nose down angle. The first group now goes high... and the group that dived on the formation begins making deflection shots... trading places after each run.
his advice helped greatly in my gaming ;D ;D.