After a look at wikipedia Aeronautical Engineering seems to cover a lot of subjects but focusing on the aircraft part of Aerospace Engineering.
Quote:
Aerospace engineers design, develop, and test aircraft, spacecraft, and missiles and supervise the manufacture of these products. Those who work with aircraft are called aeronautical engineers, and those working specifically with spacecraft are astronautical engineers.
I think that might mean my dad is an Aeronautical Engineer? He does more maintenance I suppose. Fancy title though
cool