I don't know about anything in 1/72, but there is/was the MRC/Academy/MiniCraft 1/48 VH-60N.
Also, there is no such aircraft as a UH-60N. I think you mean the Hobby Boss UH-60A Black Hawk. The VH-60N is based on the later MH-60L w/HIRSS (Hover Infra-Red Supression System) exhaust covers. It would be much better to start with a MH-60L since there are other minor (larger step sponsons, weather radar, missile counter-measures system, etc...) and some major (square, folding rear stabilator) differences as well.
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