Hello Sai Kumar, Catia v5 is a very good design software and there are also some other softwares such as Solidworks and Unigraphics Nx, but a s you can see both Catia and SolidWorks are powerful CAD software, but for different needs. With Catia you can design the whole aircraft, however, SolidWorks will perform better when it comes to product design and machinery. The choice depends on which sector you work for, your company size and what project you are currently working on.

Hope this clarifies your queries.

All the best.