The Lewis Energy founder and chief executive has one of the top vintage warbird collections in the country, if not the world.

FORBES: Lord Of The Warbirds

Glacier Girl, a P-38 Lightning dug up from under the ice in Greenland, is the crown jewel of Rod Lewis' warbird fleet.

FORBES: Lord Of The Warbirds

He said the growth since the Second World War of "warbird" groups - people who restore and keep old combat aircraft - have kept such planes flying.

BBC: Crash scene