Dear Rohan ,

Mostly aerospace engineering the primary field of engineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. It deals with

• Developing new technologies for use in spacecraft, aviation and defense systems.
• Designing, assembling and testing of aircraft and aerospace products.
• Examine damage or malfunction in an equipment to find our possible reason and offer solution.

Where Transportation designing purely deals with designing of motorcycles, mega yachts, commercial trucks, agricultural equipment, trains, aircraft, spacecraft and more.

So it will little bit difficult to catch up quickly but as an aerospace engineer you mostly know about the infrastructure and basic things of designing so it will not much higher difficult but you must improve your designing skills with advance tools use .

I hope it will helpful

Thanks