11.   A privately owned business jet will get a demonstration copy next month.

12.   Business jets have become more popular with corporations in recent years as congestion and hub airports have made it difficult to get to secondary cities.

13.   But any new orders for the business jet will also be good news for workers in Renton, who build the wings.

14.   But the one segment of the market that has held steady all year is sales of used models of the largest business jets.

15.   CFM will make engines for the business jets as well.

16.   Cessna says it was the largest order ever placed for business jets.

17.   Check out these two new small business jets.

18.   Delta Air Lines is also testing the corporate jet waters but with a different approach, by acting as a charter broker for business jets owned by others.

19.   Earlier this week Boeing said its new business jets were selling faster than expected.

20.   Elements of the system have been tested on business jets and military planes for more than three years, according to Boeing.