<t> Apologies if ive done this in the wrong place, but i am new to forums. I need help with the following question.<br/>
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In panzer corps 2 how and when do i ,can i upgrade my German aircraft i am playing Russian Campaign Kursk. My other units tanks,infantry etc i can all upgrade to newer ...

Apologies if ive posted in wrong place i am new here. My problrm is this how and when can i upgrade my German aircraft in Panzer corps 2? All other units infantry,artillary etc all upgrade nut not planes please help. Again apologies if ive posted wrong place