▁success ▁led ▁Ku olt ▁to ▁res ign ▁from ▁Bo eing , ▁and ▁focus ▁sole ly ▁on ▁other ▁business ▁vent ures , ▁namely ▁Th ous and ▁Tra ils . ▁Later , ▁in ▁ 1 9 8 1 , ▁Ku olt ▁sold ▁his ▁ownership ▁in ▁Th ous and ▁Tra ils ▁for ▁$ 4 0 ▁million . ▁Today , ▁Th ous and ▁Tra ils ▁own s ▁over ▁ 8 0 ▁private ▁camp ground s ▁nation wide . ▁ ▁Hor izon ▁Air ▁ ▁In ▁ 1 9 8 1 , ▁the ▁same ▁year ▁that ▁he ▁sold ▁Th ous and ▁Tra ils , ▁Ku olt ▁created ▁Hor izon ▁Air . ▁The ▁air line , ▁one ▁of ▁the ▁first ▁regional ▁air lines ▁in ▁the ▁United ▁States , ▁began ▁service ▁on ▁September ▁ 1 , ▁ 1 9 8 1 , ▁from ▁Y ak ima ▁to ▁Seattle ▁using ▁two ▁Fair child ▁F 2 7 ▁aircraft . ▁The ▁air line ▁began ▁operation ▁util izing ▁two ▁aircraft ▁and ▁ 3 6 ▁employees , ▁and ▁went ▁public ▁three ▁years ▁after ▁comm encing ▁operations . ▁In ▁ 1 9 8 7 , ▁Hor izon ▁Air , ▁the ▁fifth ▁largest ▁regional ▁air line ▁with ▁service ▁to ▁over ▁ 3 0 ▁cities , ▁was ▁purchased ▁by ▁Al aska ▁Air ▁Group ▁for ▁over ▁$ 6 8 ▁million . ▁ ▁References ▁ ▁Category : 1 9 2 7 ▁birth s ▁Category : 2 0 0 8 ▁death s ▁Category : 2 0 th - century ▁American ▁business people ▁Category : B oe ing ▁people ▁Category : Cent ral