i think putting a nuke reactor on a plane will be more feasible for lasers and not for microwave rays(kali),because the modern missiles are being reinforced against EMP threats.
i talked with some of the army officers and they say from a little thermal imager to t-90's to LCA,everything is being tested and reinforced for EMP protection,enabling them to be used in a highly radioactive and emp abundant NBC environment,they say they have developed a special polymer that enables them to protect their equipment from these external threats,other than us only Americans have developed this tech.NBC protection is also a clause in every defence deal we do with the foreigners.
you see my point lethalforce why it is not feasible to put kali on a plane with a reactor,there is no guarantee that are enemies have used NBC protection or not,it is a risk which we cannot afford