Here are a couple of good articles about Boom’s plans:
https://fortune.com/2021/06/15/boom-sup ... ospatiale/ and
https://www.space.com/united-airlines-b ... r-aircraft and
https://www.ainonline.com/aviation-news ... c-airliner They seem to be picking up more and more investors, but it also takes billions to design and build a plane like this, so this is a long term bet by the state and only time will tell whether it pays out or not. From what I’ve been able to find, the original development cost of the Concord was somewhere in the range of $10-14 billion in current dollars. If Boom pulls this off, it could be an enormous gain for NC and the area, and I would expect either Boeing or Airbus to try to buy part or all of the company if it looks like they are going to succeed. The interesting bit I’ve gathered thus far is that the commitment by United may actually include an equity stake in the company. No real details of their commitment have been announced, but if they have an equity stake, United would become a part owner of the company which would be a first in commercial aviation. VTOL aircraft using electric engines are the hottest development areas now with companies all around the world working on various designs. Both Boeing and Airbus are investing billions and developing prototypes and there are also dozens of small companies working on concepts and prototypes many supported by Boeing and Airbus. For comparison, Honda Jet has invested around $250 million at GSO and they have 1500+ employees. I’ve read several articles that estimated it cost over $1 billion to develop their first generation jet. They also chose to vertically integrate as much of the manufacturing of the plane as possible so they can maintain their strict quality standards. The Honda Jet fuselage is a carbon composite construction which is a very highly specialized process but it’s much lighter and stronger than the typical aluminum aircraft construction. The Boeing 787 and Airbus A350 have significant sections using carbon composite construction. I just mentioned that, because setting up a carbon composite manufacturing process is extremely expensive and a very specialized process. The more manufacturing Boom keeps “in house” the more high paying and specialized jobs we’ll have at the airport. The Concord had Rolls Royce engines which is probably why they’re working with them now. The initial development might be in Europe, but with enough of a volume commitment, they might consider manufacturing them here. Because they had the backing of the Honda corporation, Honda Jet set up a joint venture in the beginning with GE and thus the facility was located close by. This is going to be an interesting one to follow!