flyhi,
I didn't read all the posts.
Let me give you my take on why some things are and a not brief enough summary of my experiences.
Aircraft systems are in a constant evolutionary cycle for their entire useful life.
That's for a few reasons: Time to market and immature product designs, Customers tend to use the product for decades while regulations and technology changes. Sentinel safety events dictate improvements.
It’s also a regulated business where safety and regulatory compliance is actively monitored and enforced.
All this means that manufacturers, operators, maintainers, mod houses etc. have to devote huge resources to documentation and configuration control.
The FAA (or appropriate regulatory agencies) will generally leave your real aircraft alone if the paper airplanes look good.
I now consider these jobs systems engineering jobs. I am an airplane mechanic that went back and got my BSEE degree. As a mechanic I did time as an overhaul mechanic turning a wrench, as a sheet metal man, as an avionics technician, as a lead man on an overnight maintenance crew and on the flight line.
I’ve worked for 4 major airlines, a couple Part 145 repair stations, I did some commuter work, did a very brief stint in general aviation and a couple years for the Department of the Navy in Flight Test.
I’m now the cognizant engineer for aircraft collision avoidance systems and air traffic control transponders at a large airline. TCAS and transponders seems to have become something of a niche for me.
This is the second major airline where I have filled that specific role. I’ll never design a TCAS Computer or Transponder.
My previous employer operated a mixed fleet of over 500 commercial passenger jets. There were always issues to address.
At my current employer, we have 200 something jets but we have total ownership over our installation. The only OEM support that’s relevant may be structural otherwise everything else related to those systems is my responsibility.
I am a primary resource for delivering the various modification packages that define the work done on the aircraft, maintenance manual procedures etc.
I’m also act as a program manager coordinating internal contractor assistance, work done by outside contractors, equipment and parts purchases, legal and contracts arrangements, certification arrangements, billing/payment issues and regulatory issues for the numerous countries we fly to.
I participate in industry meetings to develop specifications for equipment and processes. I have consulted on government funded projects for security.
I’m still interested in circuit design, embedded computer projects, EMC, RFI, acoustics, music, software development, audio and sensors. I pursue those topics as a hobby and take classes from time to time. I’ve maintained my IEEE membership and attend events when I’m in cities that have active chapters.
It adds a lot of value to at least be aware of what’s going on around me with any technology.
It’s my carrier. It’s up to me to make it what I want it to be. If you only take classes that are paid for by a company, you only develop as their tool.
Commercial passenger aviation is a very tough business. There is no money in flying people around. I believe it has to do with the business model. It’s relatively easy for someone to start a point to point airline then try to grow it. Competition is unbelievably fierce.
For the upper management types the clever strategy options are too often eclipsed by the need to control costs. This really keeps the salaries down.
The industry and military and OEMs still always need people that can function as multidiscipline technical managers and system level managers and integrators.
Aviation in the USMC captured my attention as a much younger man (17). It’s never dull in an aircraft operations area. The closer to the line you get, the more interesting it is. You see and experience things in a hangar you’ll never see anywhere else.
I remember holding a stand for a guy manually wrenching the pneumatic start vale open on an L1011. Small by today’s standards but to be a couple feet from a 40,000 lb thrust engine as it spools up had the little hairs on the back of my neck standing up for a week.
It’s an intense environment. After a DC-9 run-up at the blast fence, I thought I’d run back and close the service panel door as they slowly taxied by. I nearly got myself run over. I had the shakes for a week.
I stayed with it. Some times were really bad (when all the unions at Eastern Airlines went on strike at once). My retirements have been cleaned out and bailed out. I’m finally with a good company and it’s working.
Electronics (and math and physics and music) seems to have become my second love.
Knowing what I know now, if I had to do it all over again, I’d have to seriously consider Optometry or plastic surgery or. Gluttony and vanity are blossoming.
Good luck what ever you do. Sorry for the tome.