As usual, you do not know what you are talking about.
How many yrs does it take General Motors to commission a car as readied for production and market ?
Assuming normal issues from market survey to plant construction and retooling, etc...About 4-5 yrs.
- Six months. From initial draft to what is called a 'mule'. Basically, a test vehicle that came from an existing model that is modified to contain the planned changes.
- One yr. Refinement and compliance to government regulations.
- Two yrs. Prototypes are completed and disseminated to selected markets. As a side note, do you know why New Zealand is a popular experiment market ? Because of its geographical isolation.
- Three yrs. Factory tooling and retrofitting begins.
- Four yrs. Manufacturing begins.
This is assuming the best case scenario with no regulations changes and favorable market survey results.
This is also from a society that has extensive manufacturing experience and yet each iteration of the automobile requires roughly the same amount of time to go from initial paper design to dealerships.
And here we are talking about an exclusive item like an aircraft carrier...
This is why no American on this forum takes you seriously when it comes to military matters.