How Do You Not See A Ferris Wheel?

From the AP: An ultra-light plane crashed into a Ferris wheel at a rural festival in eastern Australia on Saturday, trapping two children on the ride and two adults in the aircraft for hours. There were no serious injuries.
The Cheetah S200 carrying two men did not topple the Ferris wheel when it hit the frame near the top on the first morning of an annual three-day festival at Old Bar, a coastal village 220 miles (350 kilometers) north of Sydney, New South Wales Rural Fire Service spokesman Ben Shepherd said.
Two children - a 9-year-old boy and a 13-year-old girl - were trapped in a carriage at the top of the wheel near the wrecked plane for 90 minutes, police said....
The pilot, Paul Cox, said he did not see the Ferris wheel before his plane hit it.
"The next thing I knew, I was stopped inside the Ferris wheel," he said. "I had no idea for a few minutes and I was just hoping no one got hurt."
Witnesses said the Ferris wheel was full of children minutes before the crash. But because of impending rain, only five had dared to take the final ride, said a festival organizer, who gave his name only.
http://hosted.ap.org/dynamic/stories/A/AS_AUSTRALIA_PLANE_VS_FERRIS_WHEEL?SITE=AP&SECTION=HOME&TEMPLATE=DEFAULT&CTIME=2011-10-01-08-19-39
If this guy cannot see a big Ferris wheel going around and around, then perhaps the pilot maybe in the wrong business and he should also get his eyesight checked.