He also has 9 years experience building boats, so knows his way around a hull - although admits that "boats and submarines are ... “water cannons” and “model rockets launched off the sub ...

However, it remains unclear whether this involves the building ... for such a boat. However, there have been statements from ...

and it's a very complex process to bring all the components together into a functioning boat. Submarines are even more complex, given how they operate. Because of this, the U.S. doesn't build its ...