Six On Your Side found a surprise at the Warhawk Air Museum's Warbird Roundup this weekend.
We met the man who holds the world speed record for a piston powered aircraft.
... a record that was set right here in Idaho in a highly modified p-51 mustang.
"It's awesome, nothing like it," says record setting pilot Steve Hinton, "You're real low, about 100 feet off the ground. You're traveling at about 800 feet per second."
It was last year when Hinton and his plane nicknamed Voodoo came to a ranch south of Challis to set the record of 531 miles per hour..
The airframe of Voodoo could actually go much faster, but it's limited by this....the propeller. The tip of which is traveling about the speed of sound. And the laws of physics limit it to that.
Still, each low level pass required to set the record is shocking.
"When you get up to 450 to 500 miles per hour the airplane comes alive," says Hinton.
Of course, there's no prize for a piston powered speed record.
"That and two dollars 50 cents will get you a cup of coffee," says Hinton who claims he does it for fun, "It's the journey, not the destination."
But that journey is definitely a quick one.