Ron Hillmer of Hastings throws a handful of grass in the air to check the wind. It's one of the first nice Saturdays of spring, and about ten members of the Rich Valley Radio Control Club are on their airfield south of Hastings. Wispy clouds thread a blue sky, and a couple hawks circle above.
"We stay away from the birds," said Mike Eischen of St. Paul. "They've got the right of way."
The club has been gathering to fly their planes since 1985, many of them indulging their passion for flight without the expense or commitment of the real thing. They've welcomed beginners into the fold and have mentored teens who have gone on to pursue careers in full-scale aviation.
Other members are real-life fliers who can't get enough of the hobby.
Doug McKinney of Hastings, a commercial pilot and flight instructor, maneuvers his Extra 260, doing a knife edge, a hammerhead and then a rolling circle.
"It takes a lot of practice to get to there," said Hillmer, admiring the last move. "Mine are never that big or that round." McKinney then flips the plane and flies it inverted, but the engine cuts out and he lands without power.
It's not uncommon this time of year, Eischen said; engines can be finicky after sitting all winter.
Each member has brought out a couple planes, many built from scratch. "In this hobby," Hillmer said, "you're limited only by your imagination and the money and time you want to put into it."