R&D definitely forms a huge part of many product costs, and not for many products where you just churn them out by the millions For a plane, it's going to be t

R&D definitely forms a huge part of many product costs, and not for many products where you just churn them out by the millions For a plane, it's going to be the former That and the reason it's easy to get a BOM of cheap products is because you can buy them and tear them down. I can't see Airbus managing to buy a boeing and tear the entire thing down without Boeing noticing