US Department of Labor Statistics for Occupations
Aircraft mechanic and service technician - Diagnose, adjust, repair, or overhaul aircraft engines and assemblies, such as hydraulic and pneumatic systems. Include helicopter and aircraft engine specialists.
http://www.bls.gov/oes/current/oes493011.htm Mean hourly pay $22.95, mean annual salary
$49,300
Aerospace Engineer - Perform a variety of engineering work in designing, constructing, and testing aircraft, missiles, and spacecraft. May conduct basic and applied research to evaluate adaptability of materials and equipment to aircraft design and manufacture. May recommend improvements in testing equipment and techniques.
http://www.bls.gov/oes/current/oes172011.htm mean hourly pay $42.92 Mean annual salary
$89,260
A graduate engineer makes 1.81 times the pay of a mechanic-engineer
Both are honorable professions, but one should never confuse one for the other, even if your language does.