> company decided to suddenly get into the jumbo-jet business, this shouldn't be an issue for them I don't think it's that simple. You can count jumbo jet make

> company decided to suddenly get into the jumbo-jet business, this shouldn't be an issue for them I don't think it's that simple. You can count jumbo jet makers and their engine suppliers on one hand. It's not like you can go shop for a new line of engines on Craigslist, these things are designed with the plane maker in mind and production numbers planned for a decade+ ahead. Both parties have to work very closely together to produce something with acceptable fuel efficiency.