, "Barling Bomber XNBL-1" would be fine with me, as the important thing here is that most researchers will be looking for the words "Barling Bomber" in the article's title. , shame on you! The WP:AIR/NC is not a standard that article titles are forced to conform with, it is only the suggested method of naming. This particular aircraft conforms to the same convention applied to the Horten Ho 229 article. In the case of experimental aircraft it is often more correct to name the aircraft after the designer, not the manufacturer. In this particular case that is doubly true, as the manufacturer went out of buisness before the aircraft was operational, and the designer continued to design aircraft for another decade. -