|Aerospace product and parts manufacturing||35%|
|Architectural, engineering, and related services||15%|
|Scientific research and development services||14%|
|Navigational, measuring, electromedical, and control
Aerospace engineers now spend more of their time in an office than they have in the past, because modern aircraft design requires the use of sophisticated computer equipment and software design tools, modeling, and simulations for tests, evaluation, and training.
Aerospace engineers typically work full time. Engineers who direct projects must often work extra hours to monitor progress, to ensure that the design meets requirements, to determine how to measure aircraft performance, to see that production meets design standards, and to ensure that deadlines are met.
Source: U.S. Department of Labor, Occupational Outlook Handbook, 2012-13 Edition