Although Helicopter Parents can be viewed negatively, not every characteristic is undesirable. Some Helicopter Parents return to land after they are sure their precious child is cruising at a safe and comfortable altitude. The latter, more moderate approach is ideal for Helicopter Librarians.
“Helicopter Librarians” can emulate the desirable traits of “Helicopter Parents.” Additionally, the term “Helicopter Librarian” sounds sufficiently lofty.
The main difference between great librarians and Helicopter Librarians is that the former are focused on providing excellent service whereas the Helicopter Librarians are committed to building radically great relationships that students are comfortable with, similar to their relationships with their Helicopter Parents.
Full article (Library Journal)
What type of helicopter?
If someone is a helicopter librarian they could be this:
but why not be this: