Part 103 applies to ultralight aircraft that weigh less than 254 pounds, carry only a single occupant, are used for strictly recreational purposes, and meet a few other criteria. Under Part 103 ...

It’s effectively a manned RC plane, now legally a Part 103 ultralight. Now all that work is finally bearing fruit. [Peter] is flying this plane on some short hops down a grass runway.

This is simple." Indeed it is. It's classified by the FAA as a Part 103 Ultralight Aircraft, which means you don't have to meet as many standards as, say, a Boeing 747, or even some of the air ...