An ultralight has and engine so it's heavier.

Ultra light

The worlds lightest airplane is I believe the ultralight. Now ultralight aircrafts come in many different shapes and sizes but they are the "Family" of the lightest planes. To see what they look like, go to google.com and type in pictures of ultralight planes.

An ultralight helicopter is a considered to be a toy and it a common collectorÍs item. There is no need for a license to fly or play with this type of helicopter.

There is no age requirement for ultralights.