smudgethecat is right. As i refer to a light aircraft enginner as is someone who works on cessna 152's, 172's etc. I started off on these type of aircraft then moving to Beech King Airs. It was great to learn on and loved it. But {the big but!!}, now im working the line at Stansted on A320's, B767 and loving it. Nowadays learning the bigger aircraft is i would say more benificial cause you can open your options up alot more than just having C152 on your cv. We all have the same licence apart from a few deviations in exam modules. If your a light aircraft engineer or a heavy aircraft engineer, we all have the same responsibilitys. The only difference in aircraft is the light aircraft have to be flown by someone and the heavy aircraft have to have a working computer to fly!!!